Publications

Written at the express request of the Google Earth Engine (GEE) development team, my colleague and friend Mort Canty has two great series of Google tutorials. One is in four parts, Part 1, Part 2, Part 3, and Part 4 on (sequential) change detection in polSAR data. This last part comes with an extension on Sentinel-1 Change Detection over Ukraine. Another series is in three parts Part 1, Part 2, and Part 3 on bi-temporal change detection and relative radiometric normalization in visual/infrared imagery. Both tutorials are based on work listed below.

Mort Canty's and my 2012 paper Linear and kernel methods for multivariate change detection, Computers and Geosciences 38(1), 107-114, DOI:10.1016/j.cageo.2011.05.012, has been downloaded 550,000+ times from here (listed below also).

My (unofficial) adjustment lecture note entitled Least Squares Adjustment: Linear and Nonlinear Weighted Regression Analysis (55 p.) has been downloaded 105,000+ times from here (listed at the bottom of this page also).

Reviewed Journals

  1. Knut Conradsen, Henning Skriver and Allan A. Nielsen (2024). Omnibus Change Detection in Block Diagonal Covariance Matrix PolSAR Data Illustrated with Simulated and Sentinel-1 Data. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 17, 16359-16376. Open Access DOI:10.1109/JSTARS.2024.3453442. Matlab code here.

  2. Paul Connetable, Knut Conradsen, Allan A. Nielsen and Henning Skriver (2024). Corrections to Test statistics for reflection symmetry, applications to quad-polarimetric SAR data for detection of man-made structures. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 17, 5106. Open Access DOI:10.1109/JSTARS.2024.3364769.

  3. Paul Connetable, Allan A. Nielsen, Knut Conradsen, Ernst Krogager and Henning Skriver (2023). Polarimetric SAR features for vehicle detection in natural surroundings. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 16, 4383-4399. Open Access DOI:10.1109/JSTARS.2023.3269383.

  4. Allan A. Nielsen (2022). The eigenvector-eigenvalue identity applied to fast calculation of polSAR scattering characterization. IEEE Geoscience and Remote Sensing Letters 19, 4507305. Open Access DOI:10.1109/LGRS.2022.3169994. Matlab code here.

  5. Paul Connetable, Knut Conradsen, Allan A. Nielsen and Henning Skriver (2022). Test statistics for reflection symmetry, applications to quad-polarimetric SAR data for detection of man-made structures. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 15, 2877-2890. Open Access DOI:10.1109/JSTARS.2022.3162670. Corrections here DOI:10.1109/JSTARS.2024.3364769. Matlab code here.

  6. Allan A. Nielsen (2022). Change Detection in Dual Polarization Sentinel-1 Data with Wilks' Lambda. IEEE Geoscience and Remote Sensing Letters 19, 4012205. Open Access DOI:10.1109/LGRS.2021.3068516. Matlab code here.

  7. Morton J. Canty, Allan A. Nielsen, Henning Skriver and Knut Conradsen (2020). Wishart-Based Adaptive Temporal Filtering of Polarimetric SAR Imagery. Remote Sensing 12(15), 2454, Special Issue "PolTimeSAR Polarimetric Time-Series SAR Images: Applications in Change Detection". Abstract. Open Access DOI:10.3390/rs12152454. Invited contribution.

  8. David Malmgren-Hansen, Leif Toudal Pedersen, Allan Aasbjerg Nielsen, Matilde Brandt Kreiner, Roberto Saldo, Henning Skriver, John Lavelle, Jørgen Buus-Hinkler, and Klaus Harnvig (2020). A Convolutional Neural Network Architecture for Sentinel-1 and AMSR2 Data Fusion. IEEE Transactions on Geoscience and Remote Sensing 59(3), 1890-1902. Open Access DOI:10.1109/TGRS.2020.3004539.

  9. Morton J. Canty, Allan A. Nielsen, Henning Skriver and Knut Conradsen (2020). Statistical Analysis of Changes in Sentinel-1 Time Series on the Google Earth Engine. Remote Sensing 12(1), 46. Abstract. Open Access DOI:10.3390/rs12010046.

  10. Allan A. Nielsen (2020). Fast matrix based computation of eigenvalues and the Loewner order in PolSAR data. IEEE Geoscience and Remote Sensing Letters 17(10), 1727-1731. DOI:10.1109/LGRS.2019.2952202. Matlab code in zip file.

  11. David Malmgren-Hansen, Valero Laparra, Allan A. Nielsen and Gustau Camps-Valls (2019). Statistical Retrieval of Atmospheric Profiles with Deep Convolutional Neural Networks. ISPRS Journal of Photogrammetry and Remote Sensing 158, 231-240. DOI:10.1016/J.ISPRSJPRS.2019.10.002. Share link directly to Elsevier.

  12. Allan A. Nielsen, Henning Skriver and Knut Conradsen (2019). The Loewner Order and Direction of Detected Change in Sentinel-1 and Radarsat-2 Data. IEEE Geoscience and Remote Sensing Letters 17(2), 242-246 (2020). DOI:10.1109/LGRS.2019.2918636.

  13. Joshua Rutkowski, Morton J. Canty and Allan A. Nielsen (2018). Site Monitoring with Sentinel-1 Dual Polarization SAR Imagery Using Google Earth Engine. Journal of Nuclear Materials Management XLVI(3), 48-59.

  14. Allan A. Nielsen, Knut Conradsen, Henning Skriver and Morton J. Canty (2017). Visualization of and software for omnibus test based change detected in a time series of polarimetric SAR data. Canadian Journal of Remote Sensing 43(6), 582-592. DOI:10.1080/07038992.2017.1394182.

  15. Allan Aasbjerg Nielsen, Knut Conradsen and Henning Skriver (2017). Corrections to "Change Detection in Full and Dual Polarization, Single- and Multi-Frequency SAR Data". IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 10(11), 5143-5144. DOI:10.1109/JSTARS.2017.2761038.

  16. David Malmgren-Hansen, Anders Kusk, Jørgen Dall, Allan Aasbjerg Nielsen, Rasmus Engholm and Henning Skriver (2017). Improving SAR Automatic Target Recognition Models with Transfer Learning from Simulated Data. IEEE Geoscience and Remote Sensing Letters 14(9), 1484-1488. DOI:10.1109/LGRS.2017.2717486.

  17. Javier Muro, Morton J. Canty, Knut Conradsen, Christian Hüttich, Allan Aasbjerg Nielsen, Henning Skriver, Florian Remy, Adrian Strauch, Frank Thonfeld and Gunter Menz (2016). Short-term change detection in wetlands using Sentinel-1 time series. Remote Sensing 8(10) 795. Open Access DOI:10.3390/rs8100795. Get article directly.

  18. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2016). Stable reconstruction of Arctic sea level for the 1950-2010 period. Journal of Geophysical Research: Oceans 121(8), 5697-5710. DOI:10.1002/2016JC011685.

  19. Knut Conradsen, Allan Aasbjerg Nielsen and Henning Skriver (2016). Determining the points of change in time series of polarimetric SAR data. IEEE Transactions on Geoscience and Remote Sensing 54(5), 3007-3024. See ORBIT. DOI:10.1109/TGRS.2015.2510160.

  20. Allan Aasbjerg Nielsen, Knut Conradsen and Henning Skriver (2015). Change Detection in Full and Dual Polarization, Single- and Multi-Frequency SAR Data. IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 8(8), 4041-4048. DOI:10.1109/JSTARS.2015.2416434. See ORBIT. CORRECTION: the figures on page 4044 are not correct, correct figures can be found here.

  21. Jakob Jakobsen, Anna B.O. Jensen and Allan A. Nielsen (2015). Simulation of GNSS reflected signals and estimation of position accuracy in GNSS-challenged environment. Journal of Geodetic Science 5, 47-56. DOI:10.1515/jogs-2015-0006.

  22. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2015). Statistical selection of tide gauges for Arctic sea level reconstruction. Advances in Space Research 55(9), 2305-2314. DOI:10.1016/j.asr.2015.01.017.

  23. Jacob S. Vestergaard and Allan A. Nielsen (2015). Canonical Information Analysis. ISPRS Journal of Photogrammetry and Remote Sensing 101, 1-9. See also ORBIT. DOI:10.1016/j.isprsjprs.2014.11.002.

  24. Jiaojiao Tian, Allan A. Nielsen and Peter Reinartz (2015). Building damage assessment after the earthquake in Haiti using two postevent satellite stereo imagery and DSMs. International Journal of Image and Data Fusion 6(2), 155-169. DOI:10.1080/19479832.2014.1001879. Included in Exclusive Editor's Choice Collection (can be reached until 30 April 2018).

  25. Jiaojiao Tian, Allan A. Nielsen and Peter Reinartz (2014). Improving change detection in forest areas based on stereo panchromatic imagery using kernel MNF. IEEE Transactions on Geoscience and Remote Sensing 52(11), 7130-7139. DOI:10.1109/TGRS.2014.2308012.

  26. Derek Rogge, Martin Bachmann, Benoit Rivard, Allan A. Nielsen and Jilu Feng (2014). A Spatial-Spectral Approach for Deriving High Signal Quality Eigenvectors for Remote Sensing Image Transformations. International Journal of Applied Earth Observation and Geoinformation 26, 387-398. DOI:10.1016/j.jag.2013.09.007.

  27. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2013). Acceleration of the Greenland ice sheet mass loss as observed by GRACE: Confidence and sensitivity. Earth and Planetary Science Letters 364, 24-29. DOI:10.1016/j.epsl.2012.12.010.

  28. Jacob S. Vestergaard and Allan A. Nielsen (2013). Automated invariant alignment to improve canonical variates in image fusion of satellite and weather radar data. Journal of Applied Meteorology and Climatology 52, 701-709. DOI:10.1175/JAMC-D-12-05.1. See also ORBIT.

  29. Asger N. Christiansen, J. Michael Carstensen, Flemming Møller and Allan A. Nielsen (2012). Monitoring the change in colour of meat: A comparison between traditional and kernel based orthogonal transformations. Journal of Spectral Imaging 3(1), 1-10. DOI:10.1255/jsi.2012.a1. See also ORBIT.

  30. Morton J. Canty, and Allan A. Nielsen (2012). Linear and kernel methods for multivariate change detection. Computers and Geosciences 38(1), 107-114. DOI:10.1016/j.cageo.2011.05.012. Downloaded more than 550,000 times from here.

  31. Matthias Butenuth, Daniel Frey, Allan A. Nielsen and Henning Skriver (2011). Infrastructure assessment for disaster management using multi-sensor and multi-temporal remote sensing imagery. International Journal of Remote Sensing 32(23), 8575-8594. DOI:10.1080/01431161.2010.542204.

  32. Allan Aasbjerg Nielsen (2011). Kernel maximum autocorrelation factor and minimum noise fraction transformations. IEEE Transactions on Image Processing 20(3), 612-624. DOI:10.1109/TIP.2010.2076296.

  33. Henrik Aanæs, Jóhannes R. Sveinsson, Allan A. Nielsen, Thomas Bøvith and Jón Atli Benediktsson (2008). Model Based Satellite Image Fusion. IEEE Transactions on Geoscience and Remote Sensing 46(5), 1336-1346. DOI:10.1109/TGRS.2008.916475.

  34. Morton J. Canty, and Allan A. Nielsen (2008). Automatic Radiometric Normalization of Multitemporal Satellite Imagery with the Iteratively Re-weighted MAD Transformation. Remote Sensing of Environment 112(3), 1025-1036. DOI:10.1016/j.rse.2007.07.013.

  35. Allan Aasbjerg Nielsen (2007). The Regularized Iteratively Reweighted MAD Method for Change Detection in Multi- and Hyperspectral Data. IEEE Transactions on Image Processing 16(2), 463-478. DOI:10.1109/TIP.2006.888195.

  36. Morton J. Canty, and Allan A. Nielsen (2006). Visualization and unsupervised classification of changes in multispectral satellite imagery. International Journal of Remote Sensing 27(18), 3961-3975. DOI:10.1080/01431160500222608.

  37. Thorbjørn J. Andersen, Morten Pejrup and Allan A. Nielsen (2006). Long-term and high resolution measurements of bed level changes in a temperate, microtidal coastal lagoon. Marine Geology 226(1-2), 115-125. DOI:10.1130/B30722.1.

  38. Nette Schultz, Allan A. Nielsen, Knut Conradsen, Kristian N. Madsen and Per S. Sørensen (2005). A non-parametric 2D deformable template classifier. Environmetrics 16(1), 81-94. DOI:10.1002/env.692.

  39. Morton J. Canty, Allan A. Nielsen and Michael Schmidt (2004). Automatic radiometric normalization of multitemporal satellite imagery. Remote Sensing of Environment 91(3-4), 441-451. DOI:10.1016/j.rse.2003.10.024.

  40. Knut Conradsen, Allan Aasbjerg Nielsen, Jesper Schou and Henning Skriver (2003). A test statistic in the complex Wishart distribution and its application to change detection in polarimetric SAR data. IEEE Transactions on Geoscience and Remote Sensing 41(1), 4-19. DOI:10.1109/TGRS.2002.808066.

  41. Jesper Schou, Henning Skriver, Allan Aasbjerg Nielsen and Knut Conradsen (2003). CFAR edge detector for polarimetric SAR images. IEEE Transactions on Geoscience and Remote Sensing 41(1), 20-32. DOI:10.1109/TGRS.2002.808063.

  42. Allan A. Nielsen, Knut Conradsen and Ole B. Andersen (2002). A Change Oriented Extension of EOF Analysis Applied to the 1996-1997 AVHRR Sea Surface Temperature Data. Physics and Chemistry of the Earth 27(32-34), 1379-1386.

  43. Allan Aasbjerg Nielsen (2002). Multiset Canonical Correlations Analysis and Multispectral, Truly Multi-temporal Remote Sensing Data. IEEE Transactions on Image Processing 11(3), 293-305. DOI:10.1109/83.988962.

  44. Allan Aasbjerg Nielsen (2001). Spectral Mixture Analysis: Linear and Semi-parametric Full and Iterated Partial Unmixing in Multi- and Hyperspectral Image Data. International Journal of Computer Vision 42(1-2), 17-37. DOI:10.1023/A:1011181216297. Invited contribution.

  45. Allan Aasbjerg Nielsen (2001). Spectral Mixture Analysis: Linear and Semi-parametric Full and Iterated Partial Unmixing in Multi- and Hyperspectral Image Data. Journal of Mathematical Imaging and Vision 15(1-2), 17-37. DOI:10.1023/A:1011269530293. Invited contribution.

  46. Rasmus Larsen, Allan Aasbjerg Nielsen and Harald Flesche (2000). Sensitivity study of a semi-automatic training set generator. Pattern Recognition Letters 21(13-14), 1175-1182. DOI:10.1016/S0167-8655(00)00079-9.

  47. Anne Jacobsen, Allan Aasbjerg Nielsen, Rasmus Ejrnæs and Geoff B. Groom (2000). Spectral identification of plant communities for mapping of semi-natural grasslands. Canadian Journal of Remote Sensing 26(5), 370-383. DOI:10.1080/07038992.2000.10855269.

  48. Harald Flesche, Allan Aasbjerg Nielsen, Rasmus Larsen (2000). Supervised Mineral Classification with Semi-automatic Training and Validation Set Generation in Scanning Electron Microscope Energy Dispersive Spectroscopy images of Thin Sections. Mathematical Geology 32(3), 337-366. DOI:10.1023/A:1007538028119.

  49. J.-O. Andersen, C.B. Henriksen, J. Laursen and A.A. Nielsen (1999). Computerised image analysis of biocrystallograms originating from agricultural products. Computers and Electronics in Agriculture 22(1), 51-69.

  50. Nielsen, A.A., Conradsen, K. and Simpson, J.J. (1998). Multivariate Alteration Detection (MAD) and MAF Post-Processing in Multispectral, Bi-temporal Image Data: New Approaches to Change Detection Studies. Remote Sensing of Environment 64(1), 1-19. DOI:10.1016/S0034-4257(97)00162-4.

  51. Ribeiro, A.B. and Nielsen, A.A. (1997). An Application of Discriminant Analysis to Pattern Recognition of Selected Contaminated Soil Features in Thin Sections. Geoderma 76(3-4), 253-262. DOI:10.1016/S0016-7061(96)00102-4.

  52. Schneider, T., Petersen, O.H., Nielsen, A.A. and Windfeld, K. (1990). A Geostatistical Approach to Indoor Surface Sampling Strategies. Journal of Aerosol Science 21(4), 555-567.

  53. Bjarne Saxhof and Allan Aasbjerg Nielsen (1983). Maisons consommant peu d'énergie: isolation et étanchéité à l'air/Low-Energy Houses: Insulation and Airtightness. Bâtiment International/Building Research and Practice, May 1983, 142-153. Invited contribution.

(Chapter in) Books

  1. Knut Conradsen, Henning Skriver, Morton J. Canty et Allan A. Nielsen (2022). Détection de séries de changements dans des séries d'images SAR polarimétriques. Chapitre 2 (41 pp.) en Détection de changements et analyse des séries temporelles d'images 1: Méthodes non supervisées. ISTE-Wiley. Chapitre invité.

  2. Knut Conradsen, Henning Skriver, Morton J. Canty and Allan A. Nielsen (2022). Change detection in time-series of polarimetric SAR images. Chapter 2 (pp. 35-71) in Change Detection and Image Time-Series Analysis 1: Unsupervised Methods. ISTE-Wiley. Invited contribution.

  3. Jukka Miettinen, Stéphanie Bonnet, Allan A. Nielsen, Seppo Huurinainen, and Renne Tergujeff (2021). Forest Variable Estimation and Change Monitoring Solutions Based on Remote Sensing Big Data. Chapter 24 (pp. 321-333) in Big Data in Bioeconomy. Results from the European DataBio Project. Springer. Open Access 10.1007/978-3-030-71069-9_24.

  4. Knut Conradsen, Anders Nymark Christensen, Allan Aasbjerg Nielsen and Bjarne Kjær Ersbøll (2019). Multivariate Statistics for the Technical Sciences. V. 0.94, DTU Compute, Lyngby, Denmark.

  5. M. Canty, B. Jasani, I. Lingenfelder, A. A. Nielsen, I. Niemeyer, S. Nussbaum, J. Schlittenhardt, M. Shimoni and H. Skriver (2009). Treaty Monitoring. In B. Jasani, M. Pesaresi, S. Schneiderbauer and G. Zeug (editors), Remote Sensing from Space - Supporting International Peace and Security, 167-188. Springer ISBN 978-1-4020-8483-6.

  6. Xiaoying Cong, Joerg Schlittenhart, Karlheinz Gutjahr, Uwe Soergel, Morton J. Canty and Allan A. Nielsen (2007). Using differential SAR interferometry for the measurement of surface displacement caused by underground nuclear explosions and comparison with optical change detection results. In Gunter Zeug and Martino Pesaresi (editors), Global Monitoring for Security and Stability (GMOSS). Integrated Scientific and Technological Research Supporting Security Aspects of the European Union, 282-293. JRC Scientific and Technical Reports.

  7. Morton J. Canty and Allan A. Nielsen (2007). Advances in statistical change detection methods within the GMOSS Network of Excellence. In Gunter Zeug and Martino Pesaresi (editors), Global Monitoring for Security and Stability (GMOSS). Integrated Scientific and Technological Research Supporting Security Aspects of the European Union, 365-373. JRC Scientific and Technical Reports.

  8. Sveinn Margeirsson, Allan A. Nielsen, Gudmundur R. Jonsson and Sigurjon Arason (2006). Effect of catch location, season and quality on value of Icelandic cod (Gadus morhua) products. In J.B. Luten, C. Jacobsen, K. Bekaert, A. Sæbø and J. Oehlenschläger (editors), Seafood research from fish to dish - Quality, safety & processing of wild and farmed fish, 265-274. Wageningen Academic Publishers, The Netherlands.

  9. Allan Aasbjerg Nielsen (1999). Geostatistik og analyse af spatielle data. In Thomas Balstrøm, Ole Jacobi and Esben Munk Sørensen (editors), GIS i Danmark 2, 135-146. (In Danish). Teknisk Forlag. Invited contribution. Updated versions are available in English and Danish, see below under "Lecture Notes" also.

  10. Nielsen, A.A. (1994). Analysis of Regularly and Irregularly Sampled Spatial, Multivariate, and Multi-temporal Data. Ph.D. Thesis No. 6, Department of Mathematical Modelling, Technical University of Denmark. Summary in English. Resumé på dansk.

  11. Conradsen, K., Nielsen, A.A. and Windfeld, K. (1992). Analysis of Geochemical Data Sampled on a Regional Scale. In Walden, A. and Guttorp, P. (editors), Statistics in the Environmental and Earth Sciences, 283-300. Edward Arnold, London. Invited contribution.

  12. Allan Aasbjerg Nielsen (1981). Om at holde hus med energien. In J. Winther et al. (editors) Energihåndbogen, OVE, Organisationen for vedvarende energi. (In Danish). Invited contribution.

  13. Allan Aasbjerg Nielsen (1977). Analyse af mono-energetiske gamma-spektre. (Analysis of mono-energetic gamma spectra.) Master thesis, Department of Electrophysics, Technical University of Denmark. (In Danish).

Conference Proceedings

  1. Allan A. Nielsen (2023). Rotation of Polarimetric SAR Covariance Matrices. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2023, pp. 1461-1464. Pasadena, California, USA, 16-21 July 2023. Matlab code here.

  2. Allan A. Nielsen, Henning Skriver and Knut Conradsen (2021). Combination of Wishart Test Statistics and Loewner Order for Change Detection in Quad/Full and Dual Polarization SAR Data. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, pp. 3061-3064. On-line event, Brussels, Belgium, 12-16 July 2021.

  3. Allan A. Nielsen (2021). Fast Matrix Based Computation of Eigenvalues in PolSAR Data. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2021, pp. 507-510. Invited session: Advanced Methods for Polarimetric Information Extraction II. See 4 min. presentation. CORRECTION. On-line event, Brussels, Belgium, 12-16 July 2021.

  4. Tore Wulf, Matilde Brandt Kreiner, Jørgen Buus-Hinkler, Rasmus T. Tonboe, Jacob L. Høyer, Roberto Saldo, Leif Toudal Pedersen, Allan A. Nielsen, Henning Skriver and David Malmgren-Hansen (2021). Fusion of satellite SAR and passive microwave radiometer data for automated sea ice mapping and the expected impact of CIMR observations. ESA CIMR Sci2Ops 2021 Meeting From Science to Operations for Copernicus Imaging Microwave Radiometer (CIMR) Mission. On-line event, Netherlands, 10-12 May 2021.

  5. Allan A. Nielsen, Paul J. Connetable, Knut Conradsen, Henning Skriver and Ernst Krogager (2020). Change Detection in Single- And Multi-Look Polarimetric SAR Data. 2020 IEEE Radar Conference, Firenze, Italy, 21-25 September 2020. Invited contribution.

  6. David Malmgren-Hansen, Leif Toudal Pedersen and Allan A. Nielsen (2020). Explainability in CNN Models by Means of Z-scores. Accepted for IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020, Hawaii, USA, 19-24 July 2020. See article on arXiv.org.

  7. David Malmgren-Hansen, Allan A. Nielsen, Leif Toudal Pedersen, Matilde Brandt Kreiner, Jørgen Buus-Hinkler, Roberto Saldo, Henning Skriver, and Klaus Harnvig Krane (2020). Fusion of Sentinel-1 and AMSR2 with Convolutional Neural Networks for Regression of Sea Ice Concentrations. Accepted for IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2020, Hawaii, USA, 19-24 July 2020.

  8. Allan A. Nielsen, Henning Skriver, Knut Conradsen and Morton J. Canty (2019). Change detection in polarimetric synthetic aperture radar data. Nordic Remote Sensing Conference (NoRSC), AIAS, Aarhus, Denmark, 17-19 September 2019.

  9. Leif Toudal Pedersen, Matilde Brandt Kreiner, David Malmgren-Hansen, Roberto Saldo, John Lavelle, Jens Jakobsen, Jørgen Buus-Hinkler, Allan Aasbjerg Nielsen and Henning Skriver (2019). Automatic satellite-based ice charting using AI, ESA link, Φ-week, ESRIN, Frascati, Italy, 9-13 September 2019.

  10. Allan Aasbjerg Nielsen, David Malmgren-Hansen, Leif Toudal Pedersen, Roberto Saldo, Henning Skriver, John Lavelle, Jørgen Buus-Hinkler and Matilde Brandt Kreiner (2019). Interpolation of AMSR2 data for improvement of ice charting. SPIE Remote Sensing Conference, vol. 11155-44, Strasbourg, France, 9-12 September 2019. Listen to the talk.

  11. David Malmgren-Hansen, Allan Aasbjerg Nielsen, Matilde Brandt Kreiner, Roberto Saldo, Henning Skriver, Leif Toudal Pedersen, John Lavelle and Jørgen Buus-Hinkler (2019). High-Resolution Sea Ice Maps with Convolutional Neural Networks. ESA Living Planet Symposium. Milan, Italy, 13-17 May 2019.

  12. Behnaz Pirzamanbein and Allan A. Nielsen (2019). Change Detection Software for SAR and Optical Images. ESA Living Planet Symposium. Milan, Italy, 13-17 May 2019.

  13. Allan A. Nielsen, Henning Skriver and Knut Conradsen (2019). Generation of Sample Complex Wishart Distributed Matrices and Change Detection in Polarimetric SAR Data. International Conference on Digital Image and Signal Processing, DISP 2019, Oxford, England, 29-30 April 2019.

  14. Allan A. Nielsen, Morton J. Canty, Henning Skriver and Knut Conradsen (2019). Cloud based spatio-temporal analysis of change in sequences of Sentinel images. ESA Conference on Big Data from Space (BiDS), pp. 105-108. Munich, Germany, 19-21 February 2019. See presentation.

  15. Behnaz Pirzamanbein and Allan A. Nielsen (2019). Standalone software for detecting changes in SAR and optical images. ESA Conference on Big Data from Space (BiDS), pp. 205-208. Munich, Germany, 19-21 February 2019.

  16. Paul Connetable, Henning Skriver and Allan A. Nielsen (2019). Assessment of polarimetric information for target detection improvement using SAR. ESA POLinSAR 2019. Frascati, Italy, 28 January-1 February 2019.

  17. Christian K. Ingwersen, Harald L. Mortensen, Macarena M. Ribo, Anna H. Danielak, Eythor R. Eiriksson, Allan A. Nielsen and David B. Pedersen (2018). Computer Vision for Focus Calibration of Polymerization Systems. American Society for Precision Engineering (ASPE) and European Society for Precision Engineering and Nanotechnology (euspen) Summer Topical Meeting, Advancing Precision in Additive Manufacturing, Berkeley, Califonia, USA, 22-25 July 2018.

  18. David Malmgren-Hansen, Valero Laparra, Allan A. Nielsen and Gustau Camps-Valls (2018). Transfer learning with convolutional networks for atmospheric parameter retrieval. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2018, pp. 2115-2118. Valencia, Spain, 23-27 July 2018.

  19. Morton J. Canty and Allan A. Nielsen (2017). Spatio-temporal analysis of change with Sentinel imagery on the Google Earth Engine. ESA Conference on Big Data from Space (BiDS), pp. 126-129. Toulouse, France, 28-30 November 2017. DOI:10.2760/383579.

  20. Allan A. Nielsen (2017). Maximum auto-mutual-information factor analysis. SPIE Remote Sensing Conference, vol. 10427-20, Warsaw, Poland, 11-14 September 2017.

  21. Allan A. Nielsen, Mort Canty, Henning Skriver and Knut Conradsen (2017). Change detection in multi-temporal dual polarization Sentinel-1 data. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017, pp. 3901-3904. Fort Worth, Texas, USA, 23-28 July 2017.

  22. David Malmgren-Hansen, Valero Laparra, Allan A. Nielsen and Gustau Camps-Valls (2017). Spatial noise-aware temperature retrieval from infrared sounder data. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017, pp. 17-20. Fort Worth, Texas, USA, 23-28 July 2017.

  23. Allan A. Nielsen, Knut Conradsen, Henning Skriver and Mort Canty (2017). Change detection in a series of Sentinel-1 data. IEEE 9th International Workshop on the Analysis of Multitemporal Remote Sensing Images, MultiTemp, Bruges, Belgium, 27-29 June 2017.

  24. Henning Skriver, Allan A. Nielsen, Mort Canty and Knut Conradsen (2017). Change detection in multitemporal polarimetric SAR images. Accepted for 11th ASAR Workshop, Montreal, Canada, 20-22 June 2017.

  25. Allan A. Nielsen and Rasmus Larsen (2017). Canonical Analysis of Sentinel-1 Radar and Sentinel-2 Optical Data. SCIA, Scandinavian Conference on Image Analysis, Springer Lecture Notes in Computer Science (LNCS) 10270, pp. 147-158. Tromsø, Norway, 12-14 June 2017.

  26. Mort Canty and Allan A. Nielsen (2017). Site Monitoring with Synthetic Aperture Radar Satellite Imagery. 39th ESARDA Symposium on Safeguards and Nuclear Non-Proliferation, Düsseldorf, Germany, 16-18 May 2017.

  27. David Malmgren-Hansen, Allan Aasbjerg Nielsen, and Rasmus Engholm (2016). Analyzing Learned Convnet Features with Dirichlet Process Gaussian Mixture Models. Neural Information Processing Systems, NIPS, workshop on Practical Bayesian Nonparametrics. Barcelona, Spain, 5-10 December 2016.

  28. Allan Aasbjerg Nielsen, Knut Conradsen and Henning Skriver (2016). Change detection in time series of polarimetric SAR data by an omnibus test statistic and its factorization. SPIE Remote Sensing, vol. 10004-36. Edinburgh, Scotland, 26-29 September 2016.

  29. Allan A. Nielsen, Knut Conradsen and Henning Skriver (2016). Omnibus test for change detection in a time sequence of polarimetric SAR data. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2016, pp. 3398-3401. Beijing, China, 10-15 July 2016. CORRECTION: the figures on page 3399 are not correct, correct figures can be found here.

  30. Allan Aasbjerg Nielsen, Knut Conradsen and Henning Skriver (2016). Change detection in a short time sequence of polarimetric C-band SAR data. ESA Living Planet Symposium. Prague, Czech Republic, 9-13 May 2016. CORRECTION: the figures on page 3 are not correct, correct figures can be found here.

  31. Allan Aasbjerg Nielsen, Knut Conradsen and Henning Skriver (2016). An omnibus likelihood test statistic and its factorization for change detection in time series of polarimetric SAR data. ESA Conference on Big Data from Space (BiDS). Santa Cruz de Tenerife, Spain, 15-17 March 2016.

  32. Ole B. Andersen, Peter L. Svendsen, Allan A. Nielsen and Per Knudsen (2015). Arctic sea level change over the altimetry era and reconstructed over the last 60 years, American Geophysical Union (AGU) Fall Meeting, San Francisco, California, USA, 14-18 December 2015.

  33. Allan Aasbjerg Nielsen, Knut Conradsen and Henning Skriver (2015). Change detection in quad and dual pol, single- and bi-frequency SAR data. SPIE Remote Sensing, vol. 9643-13, Toulouse, France, 21-24 September 2015.

  34. Allan A. Nielsen and Jacob S. Vestergaard (2015). Canonical analysis based on mutual information. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2015, pp. 1068-1071. Milan, Italy, 26-31 July 2015. Direct Video Link.

  35. Allan A. Nielsen and Jacob S. Vestergaard (2015). Change detection in bi-temporal data by canonical information analysis. IEEE 8th International Workshop on the Analysis of Multitemporal Remote Sensing Images, MultiTemp 2015, Annecy, France, 22-24 July 2015.

  36. Allan A. Nielsen and Andreas Müller (2015). Optimal class separation in hyperspectral image data: iterated canonical discriminant analysis. Abstract for 9th EARSeL SIG Imaging Spectroscopy workshop, Luxembourg, 14-16 April 2015.

  37. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2015). 60-year Nordic and arctic sea level reconstruction based on a reprocessed two decade altimetric sea level record and tide gauges. Poster for European Geosciences Union (EGU) General Assembly, Vienna, Austria, 12-17 April 2015.

  38. Henning Skriver, Allan A. Nielsen and Knut Conradsen (2015). Change detection in a time series of polarimetric SAR images. ESA POLinSAR 2015 - 1st BIOMASS Science Workshop. Frascati, Italy, 26-30 January 2015.

  39. Knut Conradsen, Allan A. Nielsen and Henning Skriver (2015). Change detection in polarimetric SAR images using complex Wishart distributed matrices. 37th Symposium on Applied Statistics, Kgs. Lyngby, Denmark, 26-28 January 2015.

  40. Allan A. Nielsen (2015). Kernel versions of some orthogonal transformations. 37th Symposium on Applied Statistics, Kgs. Lyngby, Denmark, 26-28 January 2015.

  41. Knut Conradsen, Allan A. Nielsen and Henning Skriver (2014). Change detection in a time series of polarimetric SAR data. ESA Conference on Big Data from Space (BiDS), pp. 136-139. Frascati, Italy, 12-14 November 2014.

  42. Knut Conradsen, Allan A. Nielsen and Henning Skriver (2014). Change detection in polarimetric SAR data over several time points. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2014, pp. 4540-4543, Québec City, Québec, Canada, 13-18 July 2014. Direct Video Link.

  43. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2014). Influence analysis of Arctic tide gauges using leverages. European Geosciences Union (EGU) General Assembly, Vienna, Austria, 27 April-2 May 2014.

  44. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2014). Arctic sea-level reconstruction analysis using recent satellite altimetry. European Geosciences Union (EGU) General Assembly, Vienna, Austria, 27 April-2 May 2014.

  45. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2013). Using leverages for objective analysis of PSMSL tide gauges in Arctic Ocean sea level reconstruction. Permanent Service for Mean Sea Level (PSMSl) 80th Anniversary Workshop on Sea Level Science, Liverpool, England, 28-29 October 2013. Presenter Per Knudsen.

  46. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2013). Confidence and sensitivity of sea-level reconstructions. Climate and Ocean - Variability, Predictability, and Change (CLIVAR) Newsletter Exchanges 62 18(2), 6-7, August 2013.

  47. Allan A. Nielsen and Jacob S. Vestergaard (2013). A kernel version of multivariate alteration detection. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2013, pp. 3451-3454, Melbourne, Victoria, Australia, 21-26 July 2013. Direct Video Link. Invited contribution.

  48. Frank Thonfeld, Allan A. Nielsen, Henning Skriver, Knut Conradsen and Mort Canty (2013). Complex Wishart distribution-based change detection with polarimetric TerraSAR-X imagery. TerraSAR-X Science Team Meeting, DLR Oberpfaffenhofen, Germany, 10-14 June 2013.

  49. Peter Reinartz, Jiaojiao Tian and Allan A. Nielsen (2013). Building damage assessment after the earthquake in Haiti using two post-event satellite stereo imagery and DSMs. Joint Urban Remote Sensing Event JURSE, pp. 57-60, Sao Paolo, Brazil, 21-23 April 2013.

  50. Allan A. Nielsen (2013). Kernel based orthogonalization for change detection in hyperspectral images. 8th EARSeL workshop on Imaging Spectroscopy, Nantes, France, 8-10 April 2013.

  51. Thomas Knudsen and Allan A. Nielsen (2013). Some safe and sensible shortcuts for effiently upscaled updates of existing elevation models. European Geosciences Union (EGU) General Assembly, Vienna, Austria, 7-12 April 2013.

  52. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2012). Exploring methods for combining altimetry with other data to extend the 20-year altimetric record onto a 50 year timescale. American Geophysical Union (AGU) Fall Meeting, San Francisco, California, USA, 3-7 December 2012.

  53. Jacob S. Vestergaard, Allan A. Nielsen, Anders L. Dahl and Rasmus Larsen (2012). Classification of Polarimetric SAR Data Using Dictionary Learning, SPIE Europe Remote Sensing Conference, vol. 8537-35, Edinburgh, Scotland, 24-27 September 2012.

  54. Allan A. Nielsen and Jacob S. Vestergaard (2012). Parameter optimization in the regularized kernel minimum noise fraction transformation, IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2012, Munich, Germany, 22-27 July 2012. Invited contribution.

  55. Allan A. Nielsen, Knut Conradsen, Henning Skriver and Morton J. Canty (2012). Change Detection in Full and Dual Polarization SAR Data and the Complex Wishart Distribution, First EARSeL Workshop on Temporal Analysis of Satellite Images, Mykonos, Greece, 23-25 May 2012.

  56. Allan A. Nielsen and Andreas Müller (2012). Optimal class separation in hyperspectral image data: iterated canonical discriminant analysis, Third Annual Hyperspectral Imaging Conference (HSI), Rome, Italy, 15-16 May 2012.

  57. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2012). Sea level reconstruction from satellite altimetry and tide gauge data, European Geosciences Union (EGU) General Assembly, Vienna, Austria, 22-27 April 2012.

  58. Peter L. Svendsen, Ole B. Andersen and Allan A. Nielsen (2012). Acceleration of the GrIS mass loss as observed by GRACE, European Geosciences Union (EGU) General Assembly, Vienna, Austria, 22-27 April 2012.

  59. Allan A. Nielsen, Rasmus Larsen and Jacob S. Vestergaard (2011). Sparse principal component analysis in hyperspectral change detection, SPIE Europe Remote Sensing Conference, vol. 8180, Prague, Czech Republic, 19-22 September 2011.

  60. Luis Gómez-Chova, Allan A. Nielsen and Gustavo Camps-Valls (2011). Explicit signal to noise ratio in reproducing kernel Hilbert spaces, IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2011, Vancouver, Canada, 25-29 July 2011. Invited contribution.

  61. Allan A. Nielsen, Ole B. Andersen and Peter L. Svendsen (2011). Greenland inland ice melt-off: analysis of global gravity data from the GRACE satellites, MultiTemp2011, Trento, Italy, 12-14 July 2011.

  62. Allan A. Nielsen and Morton J. Canty (2011). A method for unsupervised change detection and automatic radiometric normalization in multispectral data, 34th International Symposium on Remote Sensing of Environment (ISRSE), Sydney, Australia, 10-15 April 2011.

  63. Peter L. Svendsen, Allan A. Nielsen and Ole B. Andersen (2011). Spatio-temporal analysis of multi-sensor observations of the Greenland ice sheet mass loss, EGU General Assembly, Abstract, Vienna, Austria, 3-8 April 2011.

  64. Asger N. Christiansen, Allan A. Nielsen, Flemming Møller and J. Michael Carstensen (2010). Kernel based eigenvalue-decomposition methods for analysing ham, IASIM Abstract book pp. 2-3, Dublin, Ireland, 18-19 November 2010.

  65. Allan A. Nielsen and Morton J. Canty (2010). Linear and kernel methods for multi- and hypervariate change detection, SPIE Europe Remote Sensing Conference, vol. 7830, Toulouse, France, 20-23 September 2010. Invited contribution.

  66. Allan A. Nielsen and Håkan Olsson (2010). Change detection by the IR-MAD and kernel MAF methods in Landsat TM data covering a Swedish forest region, ForestSat 2010 Abstracts pp. 167-168, Lugo, Spain, 7-10 September 2010.

  67. Allan A. Nielsen (2010). Kernel parameter dependence in spatial factor analysis, Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010, pp. 4240-4243. Honolulu, Hawaii, USA, 25-30 July 2010. Invited contribution.

  68. Allan A. Nielsen, Antje Hecheltjen, Frank Thonfeld and Morton J. Canty (2010). Automatic change detection in RapidEye data using the combined MAD and kernel MAF methods, Proceedings of the IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2010, pp. 3078-3081. Honolulu, Hawaii, USA, 25-30 July 2010. Invited contribution.

  69. Allan A. Nielsen (2010). Kernel methods in orthogonalization of near-infrared hyperspectral images of maize kernels, Eighth French-Danish Workshop on Spatial Statistics and Image Analysis in Biology, SSIAB, Copenhagen, Denmark, 17-19 May 2010. Invited contribution.

  70. Jacob S. Vestergaard, Allan A. Nielsen and Ole B. Andersen (2010). Seventeen years of global SSH anomalies analyzed by a maximum information based extension to EOF analysis, American Geophysical Union, 2010 Oceans Sciences Meeting, Portland, Oregon, USA, 22-26 February 2010.

  71. Allan A. Nielsen (2009). Kernel methods in orthogonalization of multi- and hypervariate data. IEEE International Conference on Image Processing, ICIP, Cairo, Egypt, 7-11 November 2009. Invited contribution.

  72. Allan A. Nielsen and Morton J. Canty (2009). Kernel principal component and maximum autocorrelation factor analyses for change detection. SPIE vol. 7477, Europe Remote Sensing Conference, Berlin, Germany, 31 August-3 September 2009.

  73. Allan A. Nielsen (2009). A kernel version of spatial factor analysis. 57th Session of the International Statistical Institute, ISI, Durban, South Africa, 16-22 August 2009. Invited contribution.

  74. Allan A. Nielsen, Ole B. Andersen and Per Knudsen (2009). Kernel empirical orthogonal function analysis of 1992-2008 global sea surface height anomaly data. MultiTemp2009, Mystic, Connecticut, USA, 28-30 July 2009.

  75. Henrik Aanæs, Allan A. Nielsen, J. Michael Carstensen, Rasmus Larsen and Bjarne K. Ersbøll (2009). Efficient incorporation of Markov random fields in change detection, IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2009, Cape Town, South Africa, 13-17 July 2009.

  76. Allan A. Nielsen (2009). Kernel methods in orthogonalization of hyperspectral data, IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2009, Cape Town, South Africa, 13-17 July 2009. Invited contribution.

  77. Rasmus Larsen, Allan Aasbjerg Nielsen, Morten Arngren and Per Waaben Hansen (2009). Kernel based subspace projection of hyperspectral images. Poster at European Workshop on Challenges in Modern Massive Data Sets, EMMDS 2009, Lyngby, Denmark, 1-4 July 2009.

  78. Rasmus Larsen, Morten Arngren, Per Waaben Hansen and Allan A. Nielsen (2009). Kernel based subspace projection of near infrared hyperspectral images of maize kernels. 16th Scandinavian Conference on Image Analysis, SCIA 2009, Oslo, Norway, 15-18 June 2009.

  79. Allan A. Nielsen, Ole B. Andersen and Per Knudsen (2009). Recent sea level change analysed with kernel EOF. Danish Ocean Researchers' Meeting, Elsinore, Denmark, USA, 27-29 January 2009.

  80. Allan A. Nielsen and Morton J. Canty (2008). Kernel principal component analysis for change detection. SPIE vol. 7109, Europe Remote Sensing Conference, Cardiff, Great Britain, 15-18 September 2008.

  81. Allan A. Nielsen and Morton J. Canty (2008). MAD change detection: a simple spatial extension and a nonlinear version. Book of Abtracts from Remote Sensing for International Stability and Security: Integrating GMOSS Achievements in GMES, Ispra, Italy, 19-20 February 2008.

  82. Allan A. Nielsen, Henning Skriver and Knut Conradsen (2008). Change detection using polarimetric synthetic aperture radar (SAR). Book of Abtracts from Remote Sensing for International Stability and Security: Integrating GMOSS Achievements in GMES, Ispra, Italy, 19-20 February 2008.

  83. Morton J. Canty and Allan A. Nielsen (2008). Investigation of alternative iteration schemes for the IR-MAD algorithm. SPIE vol. 6748, Europe Remote Sensing Conference, Florence, Italy, 17-21 September 2007.

  84. H. Aanæs, T. Bøvith, J. R. Sveinsson, J. A. Benediktsson, A. A. Nielsen and S. A. Guðmundsson (2007). On spatial priors for satellite image fusion, IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2007, Barcelona, Spain, 23-27 July 2007.

  85. Allan A. Nielsen, Henning Skriver and Knut Conradsen (2007). Complex Wishart distribution based analysis of polarimetric synthetic aperture radar data. Proceedings of MultiTemp2007, Leuven, Belgium, 18-20 July 2007.

  86. Allan A. Nielsen and Morton J. Canty (2007). Automatic normalization of multitemporal, hyperspectral data. 5th EARSeL Workshop on Imaging Spectroscopy, Bruges, Belgium, 23-25 April 2007.

  87. Kadry M. Fouad, Allan A. Nielsen and Salah M. M. Hanafy (2007). Evaluation and comparison of some multivariate statistical techniques on airborne gamma spectrometric and magnetic measurements. 2nd International Conference on the Geology of the Tethys, Cairo, Egypt, March 2007.

  88. Morton J. Canty and Allan A. Nielsen (2006). Automatic generation of change information for multitemporal, multispectral imagery. ESA-EUSC: Image Information Mining for Security and Intelligence, European Union Satellite Centre (EUSC), Torrejón, Spain, 27-28 November 2006.

  89. Thomas Bøvith, Allan A. Nielsen, Lars K. Hansen, Rashpal S. Gill, and Søren Overgaard (2006). Detecting weather radar clutter using satellite-based nowcasting products. Fourth European Conference on Radar in Meteorology and Hydrology, ERAD 2006, Barcelona, Spain, 18-22 September 2006.

  90. Thomas Bøvith, Allan A. Nielsen, Lars K. Hansen, Rashpal S. Gill, and Søren Overgaard (2006). Detecting weather radar clutter by information fusion with satellite images and numerical weather prediction model output. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2006, Denver, Colorado, USA, 31 July-4 August 2006.

  91. Henning Skriver, Allan A. Nielsen and Knut Conradsen (2006). Segment-based change detection for polarimetric SAR data. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2006, Denver, Colorado, USA, 31 July-4 August 2006.

  92. Henrik Aanæs, Allan A. Nielsen, Thomas Bøvith, Jóhannes R. Sveinsson, and Jón A. Benediktsson (2006). Spectrally consistent satellite image fusion with improved priors. 7th Nordic Signal Processing Symposium, NORSIG 2006, Reykjavik, Iceland, 7-9 June 2006.

  93. Allan A. Nielsen and Rasmus Larsen (2005). Functional Maximum Autocorrelation Analysis. 9th Scandinavian Symposium on Chemometrics, Reykjavik, Iceland, 21-25 August 2005.

  94. Morton J. Canty Allan A. Nielsen and Jörg Schlittenhardt (2005). Sensitive change detection for remote monitoring of nuclear treaties. 31st International Symposium on Remote Sensing of Environment, Global Monitoring for Sustainability and Security, St. Petersburg, Russia, 20-24 June 2005.

  95. Michael E. Hansen, Bjarne K. Ersbøll, J. Michael Carstensen and Allan A. Nielsen (2005). Estimation of critical parameters in concrete production using multispectral vision technology. Lecture Notes in Computer Science, LNCS3540, pp. 1228-1237, 14th Scandinavian Conference on Image Analysis, SCIA 2005, Joensuu, Finland, 20-22 June 2005.

  96. Allan A. Nielsen and Morton J. Canty (2005). Multi- and hyperspectral remote sensing change detection with generalized difference images by the IR-MAD method. Proceedings of MultiTemp2005, Biloxi, Mississippi, USA, 16-18 May 2005.

  97. Morton J. Canty G. Jahnke, A. Nielsen and J. Schlittenhardt (2005). Change detection for remote monitoring of underground nuclear testing: Comparison with seismic and associated explosion source phenomological data. General Assembly of the European Geosciences Union, Vienna, Austria, 24-29 April 2005.

  98. Allan A. Nielsen (2005). An iterative extension to the MAD transformation for change detection in multi- and hyperspectral remote sensing data. Proceedings of the 4th EARSeL Workshop on Imaging Spectroscopy, pp. 485-495, Warsaw, Poland, 27-29 April 2005.

  99. Allan A. Nielsen (2005). Regularisation in multi- and hyperspectral remote sensing change detection. Proceedings of 6th Geomatic Week Conference, Barcelona, Spain, 8-10 February 2005.

  100. Allan A. Nielsen, Andreas Müller and Wouter Dorigo (2004). Hyperspectral data, change detection and the MAD transformation. 12th Australasian Remote Sensing and Photogrammetry Conference, pp. 683-688, Fremantle, Western Australia, 18-22 October 2004. Session keynote address.

  101. Thomas Knudsen and Allan A. Nielsen (2004). Detection of buildings through multivariate analysis of spectral, textural and shape based features. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2004, Anchorage, Alaska, USA, 20-24 September 2004.

  102. Morton J. Canty and Allan A. Nielsen (2004). Unsupervised classification of changes in multispectral satellite imagery. SPIE vol. 5573, Image and Signal Processing for Remote Sensing X, pp. 356-363, Maspalomas, Gran Canaria, Spain, 13-16 September 2004.

  103. Gabriela Maletti, Bjarne K. Ersbøll, Allan A. Nielsen and David Delgado Gómez (2004). Analysis of time-varying psoriasis lesion image patterns. Proceedings of IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2004, pp. 448-451. Arlington, VA, USA, 15-18 April 2004.

  104. David Delgado Gómez, Gabriela Maletti, Bjarne K. Ersbøll and Allan A. Nielsen (2004). Multi-set multi-temporal canonical analysis of psoriasis images. Proceedings of IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2004, pp. 1151-1154. Arlington, VA, USA, 15-18 April 2004.

  105. Henning Skriver, Allan A. Nielsen and Knut Conradsen (2003). Evaluation of the Wishart Test Statistic for Polarimetric SAR Data. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2003, Toulouse, France, 21-25 July 2003. Invited contribution.

  106. Allan A. Nielsen, Knut Conradsen and Henning Skriver (2003). Polarimetric synthetic aperture radar data and the complex Wishart distribution. Proceeding of the 13th Scandinavian Conference on Image Analysis, SCIA 2003, pp. 1082-1089, Springer Lecture Notes on Computer Science 2749. Gothenburg, Sweden, 29 June-2 July 2003.

  107. Allan A. Nielsen and Andreas Müller (2003). Change detection by the MAD method in hyperspectral image data. In Book of Abstracts from the Third EARSeL Workshop on Imaging Spectroscopy, Oberpfaffenhofen, Germany, 13-16 May 2003.

  108. Allan A. Nielsen (2002). Spatio-temporal analysis including multi-objective orthogonalisation and independent components analysis. The International Conference of the Royal Statistical Society, RSS 2002. Plymouth, UK, 3-6 September 2002. Book of Abstracts p. 26. Session keynote address.

  109. Allan A. Nielsen (2002). Simultaneous maximization of spatial and temporal autocorrelation in spatio-temporal data. The Eleventh International Workshop on Matrices and Statistics, EIWMS-2002. Lyngby, Denmark, 29-31 August 2002. Invited contribution.

  110. Klaus B. Hilger, Allan A. Nielsen, Rasmus Larsen and Knut Conradsen (2002). Linear and nonlinear multiset canonical correlations analysis. The Eleventh International Workshop on Matrices and Statistics, EIWMS-2002. Lyngby, Denmark, 29-31 August 2002. Invited contribution.

  111. Allan A. Nielsen, Klaus B. Hilger, Ole B. Andersen and Per Knudsen (2002). A Temporal Extension to Traditional Empirical Orthogonal Function Analysis. In Lorenzo Bruzzone and Paul Smits (editors) Analysis of Multi-Temporal Remote Sensing Images, pp. 164-170, World Scientific. (MultiTemp2001, Trento, Italy, 13-14 September 2001.)

  112. Klaus B. Hilger, Allan A. Nielsen, Ole B. Andersen and Per Knudsen (2002). An ACE-based Nonlinear Extension to Traditional Empirical Orthogonal Function Analysis. In Lorenzo Bruzzone and Paul Smits (editors) Analysis of Multi-Temporal Remote Sensing Images, pp. 171-178, World Scientific. (MultiTemp2001, Trento, Italy, 13-14 September 2001.)

  113. Allan A. Nielsen, Klaus B. Hilger, Ole B. Andersen and Per Knudsen (2002). A Bivariate Extension to Traditional Empirical Orthogonal Function Analysis. In Lorenzo Bruzzone and Paul Smits (editors) Analysis of Multi-Temporal Remote Sensing Images, pp. 179-185, World Scientific. (MultiTemp2001, Trento, Italy, 13-14 September 2001.)

  114. Allan A. Nielsen (2002). Multivariate statistics and future industrial image analysis. DTU Vision Days, Lyngby, Denmark, 3-4 June 2002.

  115. Henning Skriver, Jesper Schou, Allan A. Nielsen and Knut Conradsen (2002). Polarimetric Segmentation Using Wishart Test Statistic. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2002, Toronto, Ontario, Canada, 24-28 June 2002.

  116. Allan A. Nielsen (2002). Water Constituent Concentrations and Partial Least Squares. Fifth International Airborne Remote Sensing Conference, Miami, Florida, USA, 22-24 May 2002.

  117. Klaus Baggesen Hilger, Allan Aasbjerg Nielsen, Ole B. Andersen, Per Knudsen and Thomas Knudsen (2002). Empirical ACE based analysis of sea level, sea surface temperature, and SeaWiFS ocean colour data. 12. Havforskermøde (Danish ocean reseachers' meeting), Århus, Denmark, 8-10 January 2002.

  118. Klaus Baggesen Hilger, Allan Aasbjerg Nielsen, Ole B. Andersen, Per Knudsen and Thomas Knudsen (2002). Classification of seawater from multispectral and multitemporal ocean colour images. 12. Havforskermøde (Danish ocean reseachers' meeting), Århus, Denmark, 8-10 January 2002.

  119. Allan A. Nielsen (2001). Simultaneous Determination of Water Constituent Concentrations and Partial Least Squares. 7th Scandinavian Symposium on Chemometrics, Copenhagen, Denmark, 19-23 August 2001.

  120. Knut Conradsen, Allan A. Nielsen, Jesper Schou and Henning Skriver, (2001). Change Detection in Polarimetric SAR Data and the Complex Wishart Distribution. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2001, Sydney, NSW, Australia, 9-13 July 2001.

  121. Henning Skriver, Jesper Schou, Allan A. Nielsen and Knut Conradsen (2001). Polarimetric Edge Detector Based on the Complex Wishart Distribution. IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2001, Sydney, NSW, Australia, 9-13 July 2001.

  122. Allan A. Nielsen, Knut Conradsen, and Ole B. Andersen (2001). Change Detection in the 1996-1997 AVHRR Oceans Pathfinder Sea Surface Temperature Data. Proceedings of 12th Scandinavian Conference on Image Analysis (SCIA 2001), pp. 725-732. Bergen, Norway, 11-14 June 2001.

  123. Klaus B. Hilger, Allan A. Nielsen and Rasmus Larsen (2001). A Scheme for Initial Exploratory Data Analysis of Multivariate Image Data. Proceedings of 12th Scandinavian Conference on Image Analysis (SCIA 2001), pp. 717-724. Bergen, Norway, 11-14 June 2001.

  124. Allan A. Nielsen, Knut Conradsen and Ole B. Andersen (2001). El Niño Build-up Detection by Means of Canonical Correlations in the 1996-1997 SST and SSH Data. In Geophysical Research Abstracts, volume 3 (European Geophysical Society, EGS2001 XXVI General Assembly) p. 1801, Nice, France, 25-30 March 2001.

  125. Klaus Baggesen Hilger, Allan Aasbjerg Nielsen, Per Knudsen and Ole B. Andersen (2000). Enhancement of Ocean Related Signal by Suppression of Undesired Spectra in Remotely Sensed Multivariate SeaWiFS Images in the GEOSONAR Project. American Geophysical Union (AGU) Fall Meeting, San Francisco, California, USA, 15-19 December 2000.

  126. Klaus Baggesen Hilger, Allan Aasbjerg Nielsen and Jens Michael Carstensen (2000). Unsupervised classification of x-ray mapping images of polished sections. Proceedings of MVA2000, IAPR Workshop on Machine Vision Applications, pp. 44-47, Tokyo, Japan, 28-30 November 2000.

  127. Allan Aasbjerg Nielsen and Klaus Baggesen Hilger (2000). Spectral-spatial decomposition of multivariate SeaWiFS images with suppression of undesired spectra and noise. Abstracts from Oceans from Space, Venice 2000, p. 205, Venice, Italy, 9-13 October 2000.

  128. Allan Aasbjerg Nielsen and Peter Viskum Jørgensen (2000). Bio-optical algorithms in Danish coastal waters based on casi airborne imagery. In Book of Abstracts from the Second EARSeL Workshop on Imaging Spectroscopy, p. 28, Enschede, The Netherlands, 11-13 July 2000.

  129. Allan Aasbjerg Nielsen and Knut Conradsen (2000). Multivariate Statistics with a View to Future Medical Image Analysis. 1st International Workshop on Computer Assisted Fundus Image Analysis, CAFIA, Copenhagen County Hopspital KAS Herlev, Copenhagen, Denmark. 29-30 May 2000. Invited keynote contribution.

  130. Allan A. Nielsen, Knut Conradsen, John L. Pedersen and Agnete Steenfelt (2000). Maximum Autocorrelation Factorial Kriging. In W.J. Kleingeld and D.G. Krige (editors), Proceedings of the 6th International Geostatistics Congress, Geostats 2000, pp. 538-547, Cape Town, South Africa, 10-14 April 2000.

  131. Allan Aasbjerg Nielsen (2000). New approaches for change detection studies. In Proceedings of Seminar on Remote sensing and image analysis techniques for revision of topographic databases, pp. 24-33, KMS, The National Survey and Cadastre, Copenhagen, Denmark. 29 February 2000. Invited keynote address.

  132. Klaus Baggesen Hilger and Allan Aasbjerg Nielsen (2000). Targeting input data for change detection studies by suppression of undesired spectra. In Proceedings of Seminar on Remote sensing and image analysis techniques for revision of topographic databases, KMS, The National Survey and Cadastre, Copenhagen, Denmark. 29 February 2000.

  133. Klaus Baggesen Hilger and Allan Aasbjerg Nielsen (2000). Unsupervised Fuzzy Clustering of Multivariate Image Data. 11. Havforskermøde (Danish ocean reseachers' meeting), Roskilde University Center, Denmark, 26-28 January 2000.

  134. Klaus Baggesen Hilger, Allan Aasbjerg Nielsen and Per Knudsen (2000). Aspects of remote sensing of the GEOid and Sea level Of the North Atlantic Region (GEOSONAR) project. 11. Havforskermøde (Danish ocean reseachers' meeting), Roskilde University Center, Denmark, 26-28 January 2000.

  135. Per Knudsen, Ole B. Andersen, Thomas Knudsen, Olwijn Leeuwenburgh, Jacob Lorentzen Høyer, Niels Flemming Carlsen, Allan Aasbjerg Nielsen, Klaus Baggesen Hilger, C. Christian Tscherning, Niels Kristian Højerslev, Guilhem Moreaux, Erik Buch og Vibeke Huess (2000). The GEOSONAR Project. 11. Havforskermøde (Danish ocean reseachers' meeting), Roskilde University Center, Denmark, 26-28 January 2000.

  136. A.A. Nielsen (1999). Multi-Channel Remote Sensing Data and Orthogonal Transformations for Change Detection. In I. Kanellopoulos, G.G. Wilkinson and T. Moons (editors) Machine Vision and Advanced Image Processing in Remote Sensing, 37-48. Springer, Berlin. Proceedings of European Union Environment and Climate Programme Concerted Action MAVIRIC (MAchine VIsion in Remotely sensed Image Comprehension) work shop, Kingston, England, 18-21 May 1998. Invited contribution.

  137. Allan Aasbjerg Nielsen (1999). An Extension to a Filter Implementation of a Local Quadratic Surface for Image Noise Estimation. In Proceedings from the 10th International Conference on Image Analysis and Processing, ICIAP'99, pp. 119-124, Venice, Italy, 27-29 September 1999.

  138. Allan Aasbjerg Nielsen (1999). Partial unmixing in hyperspectral image data. In ERIM, Environmental Research Institute of Michigan (editor), Proceedings of the Fourth International Airborne Remote Sensing Conference and Exhibition/21st Canadian Symposium on Remote Sensing, vol. II, pp. 535-542, Ottawa, Ontario, Canada, 21-24 June 1999.

  139. Anne Jacobsen, Rasmus Ejrnæs, Allan Aasbjerg Nielsen, and Birger Ulf Hansen (1999). Spectral signature analysis of fiels measurements and supervised classification of grasslands using casi data. In ERIM, Environmental Research Institute of Michigan (editor), Proceedings of the Fourth International Airborne Remote Sensing Conference and Exhibition/21st Canadian Symposium on Remote Sensing, vol. I, p. 729, Ottawa, Ontario, Canada, 21-24 June 1999.

  140. Anne Jacobsen, Allan Aasbjerg Nielsen, Rasmus Ejrnæs and Geoff Groom (1999). Spectral identification of Danish grassland classes related management and plant species composition. In ERIM, Environmental Research Institute of Michigan (editor), Proceedings of the Fourth International Airborne Remote Sensing Conference and Exhibition/21st Canadian Symposium on Remote Sensing, vol. I, pp. 74-81, Ottawa, Ontario, Canada, 21-24 June 1999. This paper won the "Best of Session Award".

  141. Allan Aasbjerg Nielsen (1999). Linear Mixture Models, Full and Partial Unmixing in Multi- and Hyperspectral Image Data. In Bjarne Kjær Ersbøll and Peter Johansen (editors) Proceedings of the Scandinavian Image Analysis Conference (SCIA'99), vol. 2, pp. 898-902, Kangerlussuaq, Greenland, 7-11 June 1999.

  142. Klaus Baggesen Hilger, Allan Aasbjerg Nielsen and Per Knudsen (1999). Aspects of remote sensing of the GEOid and Sea level Of the North Atlantic Region (GEOSONAR) project. In Bjarne Kjær Ersbøll and Peter Johansen (editors) Proceedings of the Scandinavian Image Analysis Conference (SCIA'99), vol. 2, pp. 881-888, Kangerlussuaq, Greenland, 7-11 June 1999.

  143. Rasmus Larsen, Allan Aasbjerg Nielsen and Harald Flesche (1999). Sensitivity study of a semi-automatic supervised classifier applied to minerals from x-ray mapping images. In Bjarne Kjær Ersbøll and Peter Johansen (editors) Proceedings of the Scandinavian Image Analysis Conference (SCIA'99), vol. 2, pp. 785-792, Kangerlussuaq, Greenland, 7-11 June 1999.

  144. A.A. Nielsen, K.B. Hilger O.B. Andersen, N.F. Carlsen and P. Knudsen (1999). Remote sensing of the GEOid and Sea level Of the North Atlantic Region (GEOSONAR) project. In Geophysical Research Abstracts, volume 1, number 1, p. 221, European Geophysical Society (EGS), XXIV General Assembly, The Hague, The Netherlands, 19-23 April 1999. Invited contribution.

  145. Allan Aasbjerg Nielsen (1999). Linear mixture models, full and partial unmixing in multi- and hyperspectral image data. Öresyn'99, Öresund vision workshop, 15 January 1999, Lund University, Lund, Sweden.

  146. Allan Aasbjerg Nielsen, Harald Flesche, Rasmus Larsen, Johannes M. Rykkje and Mogens Ramm (1998). Semi-automatic supervised classification of minerals from x-ray mapping images. In A. Buccianti and G. Nardi and R. Potenza (editors) Proceedings of the Fourth Annual Conference of the International Association for Mathematical Geology (IAMG'98), pp. 473-478 Ischia, Naples, Italy, 6-8 October 1998.

  147. Anne Jacobsen, Kathleen B. Heidebrecht and Allan A. Nielsen (1998). Monitoring Grasslands Using Convex Geometry and Partial Unmixing - a Case Study. In M. Schaepman, D. Schläpfer and K. Itten (editors) Proceedings of the First EARSeL Workshop on Imaging Spectroscopy, pp. 309-316, Zürich, Switzerland, 6-8 October 1998.

  148. Allan A. Nielsen (1998). Linear Mixture Models and Partial Unmixing in Multi- and Hyperspectral Image Data. In M. Schaepman, D. Schläpfer and K. Itten (editors) Proceedings of the First EARSeL Workshop on Imaging Spectroscopy, pp. 165-172, Zürich, Switzerland, 6-8 October 1998.

  149. Rasmus Larsen, Allan A. Nielsen and Knut Conradsen (1998). Restoration of Hyperspectral Push-Broom Scanner Data. In Preben Gudmandsen (Ed.) Proceedings of the 17th EARSeL Symposium on Future Trends in Remote Sensing, pp. 157-162, Lyngby, Denmark, 17-19 June 1997. Balkema, Rotterdam, ISBN 90 54 10 533 5.

  150. Olwijn Leeuwenburgh and Allan Aasbjerg Nielsen (1998). Spatial-temporal kriging of sea surface height data from remote sensing satellites. Interdisciplinary Inversion Conference 98. 12-14 August, Copenhagen, Denmark.

  151. Allan Aasbjerg Nielsen (1998). Orthogonal Transformations for Data Fusion and New Approaches to Change Detection in Multispectral Image Data. Norwegian Society for Image Processing and Pattern Recognition, NOBIM (Norsk forening for bildebehandling og mønstergjenkjending), Oslo, Norway. 18-19 June. Invited contribution.

  152. Allan Aasbjerg Nielsen (1998). New Approaches to Supervised Classification and Unmixing of Multispectral Image Data. Norwegian Society for Image Processing and Pattern Recognition, NOBIM (Norsk forening for bildebehandling og mønstergjenkjending), Oslo, Norway. 18-19 June. Invited contribution.

  153. P.S. Sørensen, K.N. Madsen, K. Conradsen, A.A. Nielsen, N. Schultz (1998). Mapping of the benthic communities common mussel and neptune grass by use of hydroacoustic measurements. Third European Marine Science and Technology (MAST) Conference, Lisbon, Portugal, 23-27 May.

  154. Allan Aasbjerg Nielsen (1998). Multi-channel remote sensing and orthogonal transformations for change detection. European Union Environment and Climate Programme Concerted Action MAVIRIC (MAchine Vision In Remotely sensed Image Comprehension) work shop, Kingston, England. 18-21 May. Invited contribution.

  155. Bjarne K. Ersbøll, Knut Conradsen, Rasmus Larsen, Allan A. Nielsen and Thomas H. Nielsen (1998). Fusion of SPOT HRV XS and Orthophoto Data Using a Markov Random Field Model. In Thierry Ranchin and Lucien Wald (editors) Fusion of Earth Data: Merging of Point Measurements, Raster Maps and Remotely Sensed Images, Sophia Antipolis, France, 28-30 January, pp. 25-30. See abstract.

  156. Harald Flesche, Allan Aasbjerg Nielsen, Rasmus Larsen, Johannes M. Rykkje and Mogens Ramm (1998). Automatic Classification of Minerals from SEM EDS Images. Mineralogical Society Winter Meeting on Microbeam Techniques in the Geosciences, London, England, 7-9 January 1998.

  157. J. Tidemann and A.A. Nielsen (1997). A Simple Neural Network Contextual Classifier. In I. Kanellopoulos, G.G. Wilkinson, F. Roli and J. Austin (editors) Neurocomputation in Remote Sensing Data Analysis, 186-193. Springer, Berlin. Proceedings of European Union Environment and Climate Programme Concerted Action COMPARES (COnnectionist Methods in Pre-processing and Analysis of REmote Sensing data) work shop, York, England, 17-19 July 1996. Invited contribution.

  158. Allan A. Nielsen, Knut Conradsen, John L. Pedersen and Agnete Steenfelt (1997). Spatial Factor Analysis of Stream Sediment Geochemistry Data from South Greenland. In Vera Pawlowsky-Glahn (Ed.) Proceedings of the Third Annual Conference of the International Association for Mathematical Geology, IAMG'97, Barcelona, Spain, 22-27 September 1997, pp. 955-960.

  159. Nette Schultz and Allan Aasbjerg Nielsen (1997). Segmentation of Sea Floor in Øresund Using Deformable Templates in Feature Space. Danish Society for Pattern Recognition (DSAGM) annual meeting, Copenhagen, 25-26 August 1997.

  160. Allan Aasbjerg Nielsen (1997). Kriging. Danish Society for Pattern Recognition (DSAGM) annual meeting, Copenhagen, 25-26 August 1997.

  161. Allan Aasbjerg Nielsen, Rasmus Larsen, and Henning Skriver (1997). Change Detection in Bi-temporal EMISAR Data from Kalø, Denmark, by Means of Canonical Correlations Analysis. In ERIM, Environmental Research Institute of Michigan (editor), Third International Airborne Remote Sensing Conference and Exhibition, Copenhagen, Denmark, 7-10 July 1997, Vol. I, pp. 281-287.

  162. Niels H. Broge, Martin Hvidberg, Birger U. Hansen, Henrik S. Andersen, and Allan A. Nielsen. (1997). Analyses of Spectral-Biophysical Relationships for a Wheat Canopy. In ERIM, Environmental Research Institute of Michigan (editor), Third International Airborne Remote Sensing Conference and Exhibition, Copenhagen, Denmark, 7-10 July 1997, Vol. II, pp. 373-379. This paper won the "Best of Conference Award".

  163. Geoff Groom, Harald Mikkelsen, Henning Skriver, Birger Hansen, Anton Thompsen and Allan Aasbjerg Nielsen. (1997). Activities and Early Results from DANMAC: the Danish Multisensor Airborne Campaign. In ERIM, Environmental Research Institute of Michigan (editor), Third International Airborne Remote Sensing Conference and Exhibition, Copenhagen, Denmark, 7-10 July 1997, Vol. II, pp. 617-624.

  164. Ribeiro, A.B., Nielsen, A.A., Réfega, A.G., Viera e Silva, J.M. and Villumsen, A. (1997). Looking for "Fingerprints" of Contaminated Soil Features in Thin Sections. Presented at the Contaminated Soils, Fourth International Conference on the Biogeochemistry of Trace Elements. Berkeley, California, USA, 23-26 June 1997.

  165. Nielsen, A.A. (1996). Noise Removal in Imaging Spectrometer Data. First Workshop on DAIS 7915 - Hyperspectral Data Processing and Evaluation. 10-12 December, DLR, Oberpfaffenhofen, Germany. Invited contribution.

  166. Nielsen, A.A., Ersbøll, B.K., Pälchen, W. and Rank, G. (1996). Spatial Analysis of Multivariate, (Ir-)regularly Sampled Data: Geochemistry from the Eastern Erzgebirge. In E.Y. Baafi and N.A. Schofield (editors) Geostatistics Wollongong '96: Quantitative Geology and Geostatistics, Kluwer Academic Publishers, pp. 1173-1184. Presented at the Fifth International Geostatistics Congress, 22-27 September 1996, Wollongong, NSW, Australia.

  167. Broge, N.H., Hvidberg, M., Hansen, B.U., Andersen, H.S. and Nielsen, A.A. (1996). Crop Variability Mapping Using Multispectral Data. In Kuittinen, R. (Ed.) Proceedings from Nordic Association of Agricultural Sciences (NJF) Remote Sensing in Agriculture Seminar. Reports of the Finnish Geodetic Institute 96:4, ISBN 951-711-198-3, ISSN 0355-1962. pp. 89-94

  168. Strobl, P., Richter, R., Müller, A., Lehmann, F., Oertel, D., Tischler, S. and Nielsen, A. (1996). DAIS System Performance, First Results from the 1995 Evaluation Campaigns. In ERIM, Environmental Research Institute of Michigan (editor), Proceedings from the Second International Airborne Remote Sensing Conference and Exhibition, Volume II, pp. 325-334. 24-27 June 1996, San Francisco, California. See paper.

  169. Nielsen, A.A. (1996). Change Detection in Multispectral, Bi-temporal Spatial Data Using Orthogonal Transformations. 8th Australasian Remote Sensing Conference, 25-29 March 1996, Canberra, Australia. See paper (1179741 bytes).

  170. Nielsen, A.A., Ersbøll, B.K., Pälchen, W. and Rank, G. (1995). Aspects of Analysis of Multivariate, Spatial Data: Geochemistry from the Eastern Erzgebirge. In Haarstad, K. (Ed.), Proceedings of the First Nordic Symposium on Variability in Polluted Soil and Groundwater. Aas, Norway.

  171. Pälchen, W., Rank, G., Kluge, A., Nielsen, A.A. and Ersbøll, B.K. (1995). A New Approach to Differentiation between Geogenic and Anthropogenic Influences on Soils in a Mining Processing Area. In Haarstad, K. (Ed.), Proceedings of the First Nordic Symposium on Variability in Polluted Soil and Groundwater. Aas, Norway.

  172. Nielsen, A.A. (1995). Application of Orthogonal Transformations to Change Detection in Multispectral, Bi-temporal Image Data. Danish Society for Pattern Recognition Annual Meeting.

  173. Nielsen, A.A. and Larsen, R. (1994). Restoration of GERIS Data Using the Maximum Noise Fractions Transform. In ERIM, Environmental Research Institute of Michigan (editor), Proceedings from the First International Airborne Remote Sensing Conference and Exhibition, Volume II, pp. 557-568. Strasbourg, France. See paper.

  174. Nielsen, A.A. (1993). Multispectral and multitemporal change detection - new approaches. Abstract in H.K. Adriansen and K. Rasmussen (Ed.) Seminiar on Satellite Remote Sensing of Environment and Agriculture in Developing Countries, p. 53, 24-25 May 1993. Copenhagen, Denmark.

  175. Pendock, N. and Nielsen, A.A. (1993). Multispectral Image Enhancement Neural Networks and the Maximum Noise Fraction Transform. In Cilliers, P. (Ed.), Proceedings of the Fourth South African Workshop on Pattern Recognition, pp. 2-13, 25-26 Nov 1993. Simon's Town, South Africa.

  176. Nielsen, A.A. (1993). 2D Semivariograms. In Cilliers, P. (Ed.), Proceedings of the Fourth South African Workshop on Pattern Recognition, pp. 25-35, 25-26 Nov 1993. Simon's Town, South Africa.

  177. Conradsen, K., Nielsen, B.K., and Nielsen, A.A. (1991). Noise Removal in Multichannel Image Data by a Parametric Maximum Noise Fractions Estimator. In ERIM, Environmental Research Institute of Michigan (editor), Proceedings of the 24th International Symposium on Remote Sensing of Environment, pp. 403-416. Rio de Janeiro, Brazil.

  178. Conradsen, K., Nielsen, B.K., and Nielsen, A.A. (1991). Integration of Multi-Source Data in Mineral Exploration. In ERIM, Environmental Research Institute of Michigan (editor), Proceedings of the Eighth Thematic Conference on Geologic Remote Sensing, pp. 1053-1066. Denver, Colorado, USA.

  179. Conradsen, K. and Nielsen, A.A. (1991). Multivariate Change Detection in Multispectral, Multitemporal Images . In Eurimage and ESA/Earthnet (editor), Proceedings of Near Real-Time Remote Sensing for Land and Ocean Applications. Rome, Italy. Invited contribution.

  180. Nielsen, A.A. (1990). Computer Programs for Inclusion in the ERDAS. In ERDAS, Inc. (Ed.), Proceedings of the Third European User Group Meeting. 7 p. Bad Tölz, Germany.

  181. Petersen, O.H., Nielsen, A.A. and Schneider, T. (1989). Spatielle korrelationer beskrevet med geostatistiske metoder. Nordiske Arbeidsmiljömöte, 28.-30. august 1989, Sandefjord, Oslo, Arbeidsmiljöinstituttet, pp. 179-180.

  182. Knut Conradsen, Allan Aasbjerg Nielsen, Bjarne Kjær Nielsen, John L. Pedersen and Tage Thyrsted (1986). On the Combination of Ground Truth and Remote Sensing Data in Mineral Exploration. In ERIM, Environmental Research Institute of Michigan (editor), Summaries from the Twentieth International Symposium on Remote Sensing of Environment, 4-10 December 1986, Nairobi, Kenya, pp. 92-93.

  183. Allan Aasbjerg Nielsen (1985). A Dynamic Test Method for the Energy Consumption of Small Houses: Model Set-up, Test Design, Measurements, Parameter Estimation and Simulation. P.O. Fanger (Ed.) Proceedings of CLIMA-2000, Vol. 2, Building Design and Performance, Copenhagen Denmark, pp. 533-541.

  184. Allan Aasbjerg Nielsen and Bjarne Kjær Nielsen (1984). A Dynamic Test Method for the Thermal Performance of Small Houses: Model Set-up, Test Design, Measurements, Parameter Estimation and Simulation. Proceedings of American Council for an Energy-Efficient Economy Symposium, Santa Cruz, California, USA, August 1984, pp. B207-B220.

Technical Reports

  1. Allan Aasbjerg Nielsen, Paul Jacques Connetable, Henning Skriver and Knut Conradsen (2022). A version of the Cloude/van Zyl decomposition for full/quad pol synthetic aperture radar data. DTU Compute. 11 pp.

  2. Allan Aasbjerg Nielsen (2017). Correlation and mutual information based image registration. DTU Compute. 12 pp.

  3. Allan Aasbjerg Nielsen (2013). Interpolation in laser scanned height data. GST, The Danish Geodata Agency, Technical Report No. 19. 112 pp.

  4. Allan Aasbjerg Nielsen (2012). Interpolation in laser scanned height data. 22 pp.

  5. Allan Aasbjerg Nielsen and Brian Pilemann Olsen (2010). Change detection for semi-automatic map database updating. Technical Report No. 9. KMS, The National Survey and Cadastre, Copenhagen, Denmark.

  6. P. Knudsen, O. B. Andersen, A. A. Nielsen, K. B. Hilger et al. (2002), GEOid and Sea level Of the North Atlantic Region, (GEOSONAR). Final Report.

  7. K. B. Hilger and A. A. Nielsen (2002). Analysis of sea surface height and colour: GEOSONAR Data Report. 215 p.

  8. Bo Riemann, A. A. Nielsen et al. (2001). Danish Environmental monitoring of COastal waters (DECO), Final Report. See also.

  9. Allan Aasbjerg Nielsen (2001). Bio-optical Modelling: DECO Data Report. 126 p.

  10. DTI/Center for Kemiteknik et al. (2001). Industrielt Center for Overflademikroskopi, Mikroanalyse og Billedanalyse. Final Report (in Danish.)

  11. Harald Flesche, Allan Aasbjerg Nielsen and Rasmus Larsen (2000). A multivariate approach to seismic 4D analysis, Troll West Oil Province (2). Norsk Hydro internal report R-091170.

  12. Allan Aasbjerg Nielsen and Klaus Baggesen Hilger (2000). COMB Data Report on Unsupervised Classification of X-Ray Mapping Images of Thin Sections. 29 pp.

  13. Harald Flesche, Allan Aasbjerg Nielsen and Rasmus Larsen (2000). A multivariate approach to seismic 4D analysis, Troll West Oil Province. Norsk Hydro internal report R-091170.

  14. Harald Flesche, Allan Aasbjerg Nielsen and Rasmus Larsen (1999). Classification of Minerals by EDS Images from a Hitachi S-3000N Low Vacuum SEM. Norsk Hydro internal report R-089535.

  15. VKI, IMM/DTU, CSIC/IRNAS, MMT and ESGEMAR (1999). Final Report of the BioSonar Project. MAST-III Project No. MAS3-CT95-0026.

  16. DANMAC (1999). Final Report.

  17. DECO (1999). Mid-Term Report (2nd Annual Report).

  18. GEOSONAR (1999). Mid-Term Report (2nd Annual Report).

  19. Klaus Baggesen Hilger and Allan Aasbjerg Nielsen (1999). Statistical Transformations of SeaWiFS data: GEOSONAR Data Report 1. Department of Mathematical Modelling, Technical University of Denmark.

  20. VKI, IMM/DTU, CSIC/IRNAS, MMT and ESGEMAR (1998). Scientific Report for Year 2 of the BioSonar Project. MAST-III Project No. MAS3-CT95-0026.

  21. Harald Flesche, Allan Aasbjerg Nielsen and Rasmus Larsen (1997). Classification of Minerals from SEM EDS Images: Development of a Model for Classification of 27 Minerals Siliciclastic and Carbonate Rocks. Norsk Hydro internal report R-078852.

  22. Keith McCloy (Ed.) (1997). DANish Multisensor Airborne Campaign (DANMAC) Status Report 1997.

  23. Harald Flesche, Allan Aasbjerg Nielsen and Rasmus Larsen (1997). Development of a Model for Classification of 22 Minerals in Siliciclastic Rocks Based on SEM EDS Images. Norsk Hydro internal report R-078852.

  24. Nielsen, A.A. and Conradsen, K. (1997). Multivariate Alteration Detection (MAD) in Multispectral, Bi-temporal Image Data: A New Approach to Change Detection Studies. IMM Technical Report No. 1997-11. See frontpage. See paper without figures. Entire document.

  25. VKI, IMM/DTU, CSIC/IRNAS, MMT and ESGEMAR (1997). Scientific Report for Year 1 of the BioSonar Project. MAST-III Project No. MAS3-CT95-0026.

  26. Larsen, R., and Nielsen, A.A. (1997). casi Scanner Test Data. Department of Mathematical Modelling, Technical University of Denmark.

  27. Nielsen, A.A., Larsen, R., and Conradsen, K. (1997). Classification of EMISAR C-band Data: M17/M25: DANMAC Data Report. Department of Mathematical Modelling, Technical University of Denmark.

  28. Larsen, R., Nielsen, A.A., and Conradsen, K. (1997). Pre-processing and Classification of GER 3715 Data: T3F1: DANMAC Data Report. Department of Mathematical Modelling, Technical University of Denmark.

  29. Harald Flesche, Allan Aasbjerg Nielsen and Johannes M. Rykkje (1996). A System for Mineral Classification from SEM EDS Image Analysis. Norsk Hydro internal report R-076219.

  30. Keith McCloy (Ed.) (1996). DANish Multisensor Airborne Campaign (DANMAC) Status Report 1996.

  31. Larsen, R., Nielsen, A.A., and Conradsen, K. (1996). Pre-processing and Classification of GER 3715 Data: T2F5: DANMAC Data Report. Department of Mathematical Modelling, Technical University of Denmark.

  32. Larsen, R., Nielsen, A.A., and Conradsen, K. (1996). Pre-processing and Classification of GER 3715 Data: T2F7: DANMAC Data Report. Department of Mathematical Modelling, Technical University of Denmark.

  33. Nielsen, A.A., Larsen, R., and Conradsen, K. (1996). Pre-processing and Classification of GER 3715 Data: T2F1: DANMAC Data Report. Department of Mathematical Modelling, Technical University of Denmark.

  34. Nielsen, A.A., Larsen, R., and Conradsen, K. (1996). Pre-processing and Classification of EMISAR Data: PM025: DANMAC Data Report. Department of Mathematical Modelling, Technical University of Denmark.

  35. Nielsen, A.A., Larsen, R., and Conradsen, K. (1996). Pre-processing and Classification of EMISAR Data: PM019: DANMAC Data Report. Department of Mathematical Modelling, Technical University of Denmark.

  36. Nielsen, A.A., Larsen, R. and Conradsen, K. (1996). Multivariate Statistical Analysis of Airborne Gamma Ray Detector Data. Department of Mathematical Modelling, Technical University of Denmark.

  37. Nielsen, A.A., Larsen, R. and Conradsen, K. (1996). RoxAnn Measurements and Video based Mussel Mapping from Øresund, Denmark: Data Report. Department of Mathematical Modelling, Technical University of Denmark. 14 pp.

  38. Harald Flesche, Allan Aasbjerg Nielsen and Rasmus Larsen (1996). Development of a model for classification of minerals based on electron microscope X-ray images: Data and method description. Norsk Hydro internal report R-074560.

  39. Knut Conradsen og Allan Aasbjerg Nielsen (1996). Statistisk behandling af målte fiberdiametre. Intern Rockwool rapport.

  40. GAF, MAYASA, IMM and DLR (1995). NEW TECHnologies for Mineral Exploration and Surveillance of Environmental Impacts of Mining Operations - Based on Remote Sensing and Multidata Set Analysis. Final Report. The Commission of the European Union, Contract No. BRE2-CT92-0201.

  41. Nielsen, A.A. (1994). `Pedobafa' Geochemistry, Freiberg: Data Report. Institute of Mathematical Modelling, Technical University of Denmark. 28 pp.

  42. Nielsen, A.A. (1994). Geophysics and Integration with Geochemistry in Eastern Erzgebirge: Data Report. Institute of Mathematical Modelling, Technical University of Denmark. 25 pp.

  43. Nielsen, A.A. (1994). Geochemistry in Eastern Erzgebirge: Data Report. Institute of Mathematical Modelling, Technical University of Denmark. 38 pp.

  44. Elsirafe, A.M., Nielsen, A.A., and Conradsen, K. (1994). Application of Image Processing Techniques and Geostatistical Methods to the Aerial Gamma-Ray Spectrometric and Magnetometric Survey Data of a Sample Area from the Central Eastern Desert of Egypt as an Aid to Geological Mapping and Mineral Exploration. Institute of Mathematical Modelling, Technical University of Denmark. 94 pp. In prep.

  45. GAF, MAYASA, IMSOR and DLR (1993). Application and Development of New Techniques Based on Remote Sensing, Data Integration and Multivariate Analysis for Mineral Exploration. Final Report. The Commission of the European Communities, Contract No. MA2M-CT90-0010. 117 pp.

  46. Conradsen, K., Nielsen, A.A., Windfeld, K., Ersbøll, B.K., Larsen, R., Hartelius, K. and Olsson, C.K. (1993). Application and Development of New Techniques Based on Remote Sensing, Data Integration and Multivariate Analysis for Mineral Exploration. Final Report. Technical Annex. The Commission of the European Communities, Contract No. MA2M-CT90-0010. 96 pp.

  47. Henrik Madsen, Allan Aasbjerg Nielsen and Bjarne Saxhof (1992). Identification of Models for the Heat Dynamics of Buildings. Institute of Mathematical Statistics and Operations Research and Thermal Insulation Laboratory. Technical University of Denmark.

  48. Nielsen, A.A. (1991). HIPS programs from the IMSOR Image Group. Institute of Mathematical Statistics and Operations Research, Technical University of Denmark. 39 pp.

  49. Conradsen, K. and Nielsen, A.A. (1991). Remote Sensing in Forecasting Agricultural Statistics in Kenya. Danida, the Danish International Development Agency, Contract No. 104.Dan.8/410. 191 pp.

  50. Conradsen, K., Ersbøll, B.K., Nielsen, A.A., Pedersen, J.L., Stern, M. and Windfeld, K. (1991). Development and Testing of New Techniques for Mineral-Exploration Based on Remote Sensing, Image Processing Methods and Multivariate Analysis. Final Report. The Commission of the European Communities, Contract No. MA1M-0015-DK(B). 196 pp.

  51. Knut Conradsen, Allan Aasbjerg Nielsen, Bjarne Kjær Nielsen, John L. Pedersen and Tage Thyrsted (1987). The Application of Remote Sensing and Data Integration as an Aid to Mineral-Exploration in the Almaden Region. Project funded under CEC contracts MSM-111 EIR TCD and MSM-114-DK. IMSOR, 1987, 354 pp.

  52. Knut Conradsen, Allan Aasbjerg Nielsen, Bjarne Kjær Nielsen, John L. Pedersen and Tage Thyrsted (1987). The Use of Structural and Spectral Enchancement of Remote Sensing Data in Ore Prospecting. East Greenland Case Study. Project funded under CEC contract MSM-114-DK. IMSOR, 1987, 154 pp.

  53. Allan Aasbjerg Nielsen (1987). Dynamisk trykprøvning - en infrasonisk metode til måling af småhuses tæthed. Laboratoriet for Varmeisolering, Danmarks Tekniske Højskole. Rapport nr. 87-1.

  54. Jens Nørgaard, Thomas Lund Madsen (og Allan Aasbjerg Nielsen) (1986). Kirkevarmeanlæg: varmeforbrug og indeklima ved diskontinuert opvarmning af store rum. Laboratoriet for Varmeisolering, Danmarks Tekniske Højskole. Meddelelse nr. 181, 1986, 76 pp.

  55. Allan Aasbjerg Nielsen (1983). To økonomi programmer til TI-59. Laboratoriet for Varmeisolering, Danmarks Tekniske Højskole. Rapport nr. 83-09, 1982, 27 pp.

  56. Bjarne Saxhof and Allan Aasbjerg Nielsen (1982). Insulation and Airtightness of six Low-Energy Houses at Hjortekær, Denmark. Thermal Insultion Laboratory, Technical University of Denmark. Report No. 121, 1982, 47 pp.

  57. Allan Aasbjerg Nielsen (1982). Energy Consumption in Buildings - Regression Models - Six Low-Energy Houses at Hjortekær. Thermal Insultion Laboratory, Technical University of Denmark. Report No. 82-68, 1982, 12 pp.

  58. Allan Aasbjerg Nielsen, Mogens Raun Byberg, Rolf G. Djurtoft og Bjarne Saxhof (1979). 6 Lavenergihuse i Hjortekær. Laboratoriet for Varmeisolering, Danmarks Tekniske Højskole. Meddelelse nr. 84, 1979, 48 pp.

Popular Articles

  1. Henrik Aanæs and Allan Aasbjerg Nielsen (2010). Nye metoder til geobranchen, Geoforum 115, juni 2010.

Lecture Notes

  1. Allan Aasbjerg Nielsen (2007-2009). Geostatistics and Analysis of Spatial Data. 7 p.

  2. Allan Aasbjerg Nielsen (2004). Kriging. 6 p.

  3. Allan Aasbjerg Nielsen (2003-2013). Least Squares Adjustment: Linear and Nonlinear Weighted Regression Analysis. 55 p. Downloaded more than 105,000 times from here.

  4. Allan Aasbjerg Nielsen (1999). Orthogonal Transformations. 13 p.

  5. Allan Aasbjerg Nielsen (1998-2004). Geostatistik og analyse af spatielle data. 7 p. (In Danish).

  6. Allan Aasbjerg Nielsen (1995). Geostatistics and kriging. 22 p.

See my homepage.