Publications

Resources

2017

• [book chapter] Fabio Pacifici, Georgios K. Ouzounis, Lionel Gueguen, Giovanni Marchisio, William J. Emery, Very High Spatial Resolution Optical Imagery: Tree-Based Methods and Multi-temporal Models for Mining and Analysis. In Mathematical Models for Remote Sensing Image Processing: Models and Methods for the Analysis of 2D Satellite and Aerial Images, Springer International Publishing. pp. 81-135, 2018. [article (publisher)]

• [conference] Nikki Adelborgh, Georgios K. Ouzounis, Kostas Stamatiou, Unsupervised object detection on remote sensing imagery using hierarchical image representations and deep learning. 2017 Conference on Big Data from Space (BIDS'17), Toulouse France, November 28-30, 2017. [link to prepublished article]

2016

• [journal] Michael H.F. Wilkinson, Martino Pesaresi, Georgios K. Ouzounis. An Efficient Parallel Algorithm for Multi-Scale Analysis of Connected Components in Gigapixel Images. ISPRS International Journal of Geo-Information,vol. 5 (22), February 2016. DOI:10.3390/ijgi5030022 [article]

2013

• [journal] Martino Pesaresi, Xavier Blaes, Daniele Ehrlich, Stefano Ferri, Lionel Gueguen, Fernand Haag, Matina Halkia, Johannes Heinzel, Mayeul Kauffmann, Thomas Kemper, Georgios K Ouzounis, Marco Scavazzon, Pierre Soille, Vasileios Syrris, Luigi Zanchetta. A Global Human Settlement Layer From Optical HR/VHR RS Data: Concept and First Results, IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (JSTARS), vol. 6(5), pp. 2102-2131, October 2013. DOI: 10.1109/JSTARS.2013.2271445 [bib] [material] [slides] [poster] [article]

• [conference] Georgios K. Ouzounis. Advances in satellite image information mining over the global coverage data-set, Proceedings of the 6th International Conference “Earth from Space - the Most Effective Solutions”, pp. 206, Moscow, Russia, October 2013. [bib] [material] [slides] [poster] [abstract]

• [conference] Georgios K. Ouzounis. Design Principles for Interactive Image Information Mining Systems, Proceedings of the 11th International Conference on Pattern Recognition and Image Analysis, Samara, Russia, pp. 64-67, September 2013. [bib] [material] [slides] [poster] [article]

• [conference] Georgios K. Ouzounis, Erik R. Urbach, Michael H.F. Wilkinson. Connected attribute filtering based on contour smoothness, Proceedings of the 11th International Conference on Pattern Recognition and Image Analysis, Samara, Russia, pp. 286-289, September 2013. [bib] [material] [slides] [poster] [article]

• [journal] Georgios K. Ouzounis, Vasileios Syrris, Martino Pesaresi, Multiscale quality assessment of Global Human Settlement Layer scenes against reference data using statistical learning, Pattern Recognition Letters (PRL), April 2013. DOI: 10.1016/j.patrec.2013.04.004. [bib] [material] [slides] [poster] [article]

2012

• [journal] Michael Batty, KW Axhausen, F Giannotti, A Pozdnoukhov, A Bazzani, M Wachowicz, G Ouzounis, Y Portugali. Smart cities of the future. Springer-Verlag, The European Physical Journal Special Topics, vol. 214(1), pp. 481-518. November 2012. DOI: 10.1140/epjst/e2012-01703-3 [bib] [material] [slides] [poster] [article]

• [report] Georgios K. Ouzounis, Pierre Soille. The Alpha-Tree algorithm, Publications Office of the European Union, 2012. DOI: 10.2788/48773, [bib] [material] [slides] [poster] [article]

• [report] Martino Pesaresi, Xavier Blaes, Daniele Ehrlich, Stefano Ferri, Lionel Gueguen, Fernand Haag, Matina Halkia, Johannes Heinzel, Mayeul Kauffmann, Thomas Kemper, Georgios K Ouzounis, Marco Scavazzon, Pierre Soille, Vasileios Syrris, Luigi Zanchetta. A global human settlement layer from optical high resolution imagery, Publications Office of the European Union, 2012. DOI: 10.2788/74059 [bib] [material] [slides] [poster] [article]

• [journal] Lionel Gueguen, Georgios K. Ouzounis, Hierarchical data representation structures for interactive image information mining, Taylor & Francis, International Journal of Image and Data Fusion, vol. 3(3), pp. 221-241, July, 2012. DOI: 10.1080/19479832.2012.697924 [bib] [material] [slides] [poster] [article]

• [journal] Georgios K. Ouzounis, Martino Pesaresi, Pierre Soille, Differential Area Profiles: Decomposition Properties and Efficient Computation, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol.34(8), pp. 1533 - 1548, Aug. 2012. DOI: 10.1109/TPAMI.2011.245 [bib] [material] [slides] [poster] [article]

• [conference] Lionel Gueguen, Georgios K. Ouzounis Tree based representations for fast information mining from VHR images, Proceedings of the 8th Conference on Image Information Mining. European Commission, pp. 15–20, Joint Research Centre, Oct. 2012. DOI: 10.2788/49465, [bib] [material] [slides] [poster] [article]

• [conference] Martino Pesaresi, Georgios K. Ouzounis, Lionel Gueguen, A new compact representation of morphological profiles: report on first massive VHR image processing at the JRC, Proc. SPIE 8390, Algorithms and Technologies for Multispectral, Hyperspectral, and Ultraspectral Imagery XVIII, 839025 (May 1, 2012); DOI: 10.1117/12.920291; [bib] [material] [slides] [poster] [article]

• [conference] Georgios.K. Ouzounis, Vaseilios Syrris, Lionel Gueguen, Pierre Soille. The switchboard platform for interactive image information mining, Proceedings of the 8th Conference on Image Information Mining. European Commission, pp. 26–30, Joint Research Centre, Oct. 2012. DOI: 10.2788/49465 [bib] [material] [slides] [poster] [article]

• [conference] Michael H.F. Wilkinson, Ugo Moschini, Georgios K. Ouzounis and Martino Pesaresi, Concurrent computation of connected pattern spectra for very large image information mining, Proceedings of the 8th Conference on Image Information Mining: Knowledge Discovery from Earth Observation Data (ESA-EUSC-JRC 2012), pp. 21-25, Oberpfaffenhofen, Germany, Oct. 2012. DOI: 10.2788/49465, [bib] [material] [slides] [poster] [article]

2011

• [journal] Georgios K. Ouzounis, Michael H.F. Wilkinson. Hyperconnected attribute filters based on k-flat zones, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 33(2), pp. 224-239, 2011. DOI: 10.1109/TPAMI.2010.74 [bib] [material] [slides] [poster] [article] [preprint]

• [conference] Georgios K. Ouzounis, Lionel Gueguen, Interactive collection of training samples from the Max-Tree structure, Proceedings of the IEEE International Conference on Image Processing (ICIP), pp. 1449 - 1452, Brussels, Belgium, Sep. 2011 DOI: 10.1109/ICIP.2011.6115714 [bib] [material] [slides] [poster] [article]

• [book] Proceedings of the 10th International Symposium on Mathematical Morphology, Springer, Lecture Notes on Computer Science (LNCS), Pierre Soille, Martino Pesaresi, Georgios K. Ouzounis (Eds), [bib] [material] [product flyer] [book]

• [conference] Michael H. F. Wilkinson, Pierre Soille, Martino Pesaresi, Georgios K. Ouzounis, Concurrent Computation of Differential Morphological Profiles on Giga-Pixel Images, Proceedings of the 10th International Symposium on Mathematical Morphology (ISMM), LNCS, Springer, Heidelberg, vol. 6671, pp. 331-342, July 2011. [bib] [material] [slides] [poster] [article]

• [conference] Georgios K. Ouzounis, Pierre Soille. Pattern spectra from partition pyramids and hierarchies. Proceedings of the 10th International Symposium on Mathematical Morphology (ISMM 2011), vol. 6671. Lecture Notes in Computer Science. pp. 108–119, July 2011. DOI: 10.1007/978-3-642-21569-8_10 [bib] [material] [slides] [poster] [article]

• [conference] Georgios K. Ouzounis, Pierre Soille, Martino Pesaresi, Rubble Detection from VHR Aerial Imagery Data Using Differential Morphological Profiles, 34th International Symposium on Remote Sensing of the Environment (ISRSE 2011), Sydney, Australia, April, 2011. [bib] [material] [slides] [poster] [article]

• [conference] Georgios K. Ouzounis, Martino Pesaresi, Lionel Gueguen, Delilah Al-Khudhairy, Interactive Image Information Mining in Support to Crisis Management, IAA-CRPSM, Remote Sensing of the Environment for Sub-Saharan regions (ReSESS 2011), Nairobi, Kenya, 2011. [bib] [material] [slides] [poster] [article]

• [conference] Martino Pesaresi, Matina Halkia, Georgios K. Ouzounis, Quantitative estimation of settlement density and limits based on textural measurements, Proceedings of the Joint Urban Remote Sensing Event (JURSE 2011), pp. 89 - 92, Munich, Germany, Apr. 2011. DOI: 10.1109/JURSE.2011.5764726 [bib] [material] [slides] [poster] [article]

2010

• [conference] Georgios K. Ouzounis, Pierre Soille, Differential Area Profiles, Proceedings of the 20th International Conference on Pattern Recognition (ICPR), pp. 4085-4088, 2010. DOI: 10.1109/ICPR.2010.993 [bib] [material] [slides] [poster] [article]

• [book chapter] M.H.F. Wilkinson and Georgios K. Ouzounis. Advances in Connectivity and Connected Attribute Filters, In: Advances in Imaging and Electron Physics, vol 161, pp 211-275, Elsevier (2010). [bib] [material] [slides] [poster] [article] [link]

• [journal] Georgios K. Ouzounis, M.H.F. Wilkinson. Partition-induced connections and operators for pattern analysis, Pattern Recognition (2010) 43: 3193-3207. [bib] [material] [slides] [poster] [article]

• [conference] Michael H.F. Wilkinson, Pierre Soille, Georgios K. Ouzounis, Concurrent computation of differential morphological profiles for remote sensing, Proceedings of Workshop on Applications of Discrete Geometry and Mathematical Morphology (WADGMM), pp. 67-71, Istanbul, Turkey, Aug.2010. [bib] [material] [slides] [poster] [article]

2009

• [book] Georgios K. Ouzounis, Generalized Connected morphological operators for robust shape extraction, PhD Thesis, University of Groningen, Jan. 2009. [bib] [material] [slides] [poster] [thesis]

• [conference] Fred N. Kiwanuka, Georgios K. Ouzounis, Michael H.F. Wilkinson. Surface-Area-Based Attribute Filtering in 3D, In: M.H.F. Wilkinson, J.B.T.M. Roerdink (eds.) ISMM 2009. LNCS, vol. 5720, pp. 70-81. Springer, Heidelberg (2009). [bib] [material] [slides] [poster] [article]

• [conference] Georgios K. Ouzounis, Stilianos Giannakopoulos, Constantinos E. Simopoulos, Michael H.F. Wilkinson. Robust extraction of urinary stones from CT data using attribute filters, 16th International Conference on Image Processing (ICIP), 7-10 Nov. Cairo, Egypt, 2009. DOI: 10.1109/ICIP.2009.5414096, [bib] [material] [slides] [poster] [article]

• [conference] Georgios K. Ouzounis, An efficient algorithm for computing multi-scale connectivity measures, Proceedings of International Symposium on Mathematical Morphology (ISMM), LNCS, Springer, 2009. [bib] [material] [slides] [poster] [article]

2007

• [journal] Georgios K. Ouzounis, Michael H.F. Wilkinson. Mask-Based Second Generation Connectivity and Attribute Filters, IEEE Transactions on Pattern Analysis and Machine Intelligence, vol. 29(2), pp. 990-1004 2007. DOI: 10.1109/TPAMI.2007.1045, [bib] [material] [slides] [poster] [article] [preprint]

• [conference] Georgios K. Ouzounis, Michael H.F. Wilkinson. A parallel dual-input max-tree algorithm for shared memory machines, Proc. Int. Symp. Math. Morph. (ISMM) 2007, Oct 10-13, 2007, Rio de Janeiro, pp. 449-460. [bib] [material] [slides] [poster] [article]

2006

• [conference] Georgios K. Ouzounis, Michael H.F. Wilkinson. Filament enhancement by non-linear volumetric filtering using clustering-based connectivity. Lecture Notes in Computer Science Vol. 4153 International Workshop on Intelligent Computing in Pattern Analysis/Synthesis, IWICPAS 2006, (N. Zheng, X. Jiang, and X. Lan, Eds.), Xi'an, China, August 2006, pp. 317-327. [bib] [slides] [article] [publisher]

2005

• [conference] Georgios K. Ouzounis, Michael H.F. Wilkinson, Countering Oversegmentation in Partitioning-Based Connectivities. International Conference on Image Processing (ICIP), vol. 3, pp.844-847, September 11-14, Genova, Italy, 2005. DOI: 10.1109/ICIP.2005.1530524 [bib] [material] [slides] [poster] [preprint]

• [conference] Georgios K. Ouzounis, Michael H.F. Wilkinson, Second-order connected attribute filters using max-trees, Proceedings of the International Symposium on Mathematical Morphology: Mathematical Morphology: 40 years on, pp. 65-74, 2005. [bib] [material] [slides] [poster] [article]

• [conference] Andreas Delistamatis, M. Manatzis, Eleni Kaldoudi, Georgios Ouzounis, Panagiotis Prassopoulos, Web based system for handling DICOM structured report documents from PACS for educational and research purposes, European Radiology Supplements, 2004. [bib] [material] [slides] [poster] [article]

2004

• [conference] Andreas Delistamatis, Eleni Kaldoudi, Georgios Ouzounis, Panagiotis Prassopoulos, Web Service Interface for Conventional DICOM Sources, European Radiology Supplements, 2004. [bib] [material] [slides] [poster] [article]

2000

• [conference] Emanuele Trucco, Georgios Ouzounis, Francesca Odone, Alessandro Verri, Grading fish using machine vision and statistical learning, Proceedings of Oceanology International 2000, pp. 287-296, Spearhead-PGI, 2000. [bib] [article]

Posters

• M. H. F. Wilkinson, G. K. Ouzounis, Historic document processing using k-flat hyperconnected filters, Scientific ICT-Research Event Netherlands (SIREN) 2009, November 5, Enschede, Netherlands [poster]

• F. N. Kiwanuka, G. K. Ouzounis, M. H. F. Wilkinson. Surface-area-based attribute filtering in 3D, Scientific ICT-Research Event Netherlands (SIREN) 2009, November 5, Enschede, Netherlands [poster]

• G. K. Ouzounis, M. H. F. Wilkinson, Hyperconnected attribute filters based on k-flat zones, ICTdelta, Utrecht, Netherlands

• G. K. Ouzounis, M. H. F. Wilkinson, Mask-based second generation connectivity and attribute filters, Scientific ICT-Research Event Netherlands (SIREN) 2007, Netherlands [poster]

• G. K. Ouzounis, M. H. F. Wilkinson, Filament enhancement by non-linear volumetric filtering using clustering-based connectivity, Scientific ICT-Research Event Netherlands (SIREN) 2006, October 12, 2006, Universiteit Utrecht, Netherlands [poster]

• G. K. Ouzounis, M. H. F. Wilkinson, Connected morphological image analysis, Scientific ICT Research Event Netherlands, 6 October 2005, Eindhoven, Netherlands [poster]

• G. K. Ouzounis, M. H. F. Wilkinson, Generalized connected morphological operators for robust shape extraction, Scientific ICT Research Event, the Netherlands, 6 October 2005, Eindhoven, Netherlands [poster]

Patents

• Georgios K. Ouzounis, Kostas Stamatiou, Unsupervised Land Use Land Cover Detection, United States Patent. Patent Number: US 10691942, NovemJune 23, 2020. [link]

• Georgios K. Ouzounis, Kostas Stamatiou, Muddy Water Detection Using Normalized Semantic Layers, United States Patent. Patent Number: US 10515272, Dec. 24, 2019. [link]

• Georgios K. Ouzounis, Kostas Stamatiou, Anomaly Detection Using Non-Target Clustering, United States Patent. Patent Number: US 10679055, June 9, 2020. [link]

• Georgios K. Ouzounis, Nikki Aldeborgh, Kostas Stamatiou, Shape-Based Segmentation Using Hierarchical Image Representations For Automatic Training Data Generation and Search Space Specification For Machine Learning Algorithms, United States Patent. Patent Number: US 10372984, Aug. 6, 2019. [link]

• Georgios Ouzounis, Multi-spectral image labeling with radiometric attribute vectors of image space representation components. United States Patent. Patent Number: US 9619711, April 11, 2017. [link]

• Georgios Ouzounis. Automatic extraction of built-up footprints from high resolution overhead imagery through manipulation of Alpha-Tree data structures. United States Patent, Patent Number: US 9031325, May 12, 2015. [link]

• Georgios Ouzounis. Automatic extraction of built-up footprints from high resolution overhead imagery through manipulation of Alpha-Tree data structures. United States Patent, Patent Number: US 8682079, Mar. 25, 2014. [link]

Other Publications

• [report] Institute for the Protection and Security of the Citizen, Exploratory Research Projects 2011, Publications Office of the European Union, Barbara Mortara (eds), pp. 6-8, 2012. DOI: 10.2788/89575.

• [manual] M.H.F. Wilkinson, G.K. Ouzounis. Lab Manual Computer Vision, Department of Mathematics and Computing Science, Faculty of Mathematics and Natural Sciences, University of Groningen, Aug. 2004 [document]