TU Wien Informatics

About

Modern imaging sensors, like digital photo and video cameras, LIDARs, or medical devices measure huge amounts of data day-by-day. Pattern Recognition and Image Processing (PRIP) aims at the extraction of information from such data.

Simple tasks like the detection of human faces are already solved and solutions are commercially available in digital cameras. More challenging applications such as the image-based autonomous navigation or the detection of anomalies in medical images require systems to incorporate some knowledge to enhance the recognition results and to give semantically appropriate interpretations.

Traditionally, such knowledge could for instance include the characteristics of the camera system or the available processing strategies. More importantly, however, recognition results can be improved by incorporating the composition and structure of the environment. Indeed, the information to be extracted from images is closely related to pieces of data from the same environment that gives them meaning. Unfortunately, it turns out that methods of statistical pattern recognition cannot cope with the image structure well. The methods of deep-learning too are not yet capable of exploiting the structural nature of images.

At the research unit Pattern Recognition and Image Processing (PRIP) we focus on advanced image representations and methods that allow the structure of the image to become an essential part of recognition systems.

The research Unit Pattern Recognition and Image Processing is part of the Institute of Visual Computing and Human-Centered Technology.

Walter Kropatsch
Walter Kropatsch W. Kropatsch

Head of Research Unit
O.Univ.Prof. DI Dr.

Darshan Batavia
Darshan Batavia D. Batavia

PreDoc Researcher
M.Tech.

Jiri Hladuvka
Jiri Hladuvka J. Hladuvka

PostDoc Researcher
Dr.

2020

2019

2018

  • Tracking Golden-Collared Manakins in the Wild / A. Gostler, N. Artner, W. Kropatsch, L. Fusani / Talk: ICPR2018 24th International Conference on Pattern Recognition/Workshop Visual observation and analysis of Vertebrate And Insect Behavior (VAIB 2018), Bejing, China (invited); 2018-08-20 - 2018-08-24
  • Confocal ellipse-based distance and confocal elliptical field for polygonal shapes / A. Gabdulkhakova, W. Kropatsch / Talk: 23rd Computer Vision Winter Workshop (CVWW), Český Krumlov, Czech Republic (invited); 2018-02-05 - 2018-02-07
  • Line voronoi diagrams using elliptical distances. / A. Gabdulkhakova, M. Langer, B. Langer, W. Kropatsch / in: "Structural, Syntactic, and Statistical Pattern Recognition / S+SSPR: Joint IAPR International Workshops on Statistical Techniques in Pattern Recognition (SPR) and Structural and Syntactic Pattern Recognition (SSPR)", Springer, Cham, Springer Nature Switzerland AG 2018, 2018, ISBN: 978-3-319-97784-3, 258 - 267
  • Confocal Ellipse-based Distance and Confocal Elliptical Field for Polygonal Shapes. / A. Gabdulkhakova, W. Kropatsch / in: "IAPR/ICPR 2018 International Conference on Pattern Recognition", IEEE Catalog Number: CFP18182-USB; IEEE Computer Society, 2018, ISBN: 978-1-5386-3787-6, 3025 - 3030
  • Segmentation Edit Distance / D. Pucher, W. Kropatsch / in: "IAPR/ICPR 2018 International Conference on Pattern Recognition", IEEE Catalog Number: CFP18182-USB; IEEE Computer Society, 2018, ISBN: 978-1-5386-3787-6, 1175 - 1185

2017

2016

  • Shape Normalizing and Tracking Dancing Worms / C. Sansone, D. Pucher, N. Artner, W. Kropatsch, A. Saggese, M. Vento / Talk: S+SSPR 2016 - IAPR International Workshops on Structural and Syntactic Pattern Recognition (SSPR 2016) and Statistical Techniques in Pattern Recognition (SPR 2016), Mérida, Mexico; 2016-11-30 - 2016-12-02; in: "Joint IAPR International Workshop, S+SSPR 2016, Mérida, Mexico, November 29 - December 2, 2016, Proceedings", A. Robles-Kelly, M. Loog, B. Biggio, F. Escolano, R. Wilson (ed.); Structural, Syntactic, and Statistical Pattern Recognition, Springer International, 10029, Lecture Notes in Computer Science, Vol. 10029, Image Processing, Computer Vision, Pattern Recognition, and Graphics (2016), ISBN: 978-3-319-49054-0; 390 - 400
  • A real-time algorithm for train position monitoring using optical time-domain reflectometry / A. Papp, C. Wiesmeyr, M. Litzenberger, H. Garn, W. Kropatsch / Talk: 2016 IEEE International Conference on Intelligent Rail Transportation, Birmingham, UK (invited); 2016-08-23 - 2016-08-25; in: "IEEE International Conference on Intelligent Rail Transportation (ICIRT)", IEEE, (2016), ISBN: 978-1-5090-1556-6; 89 - 93
  • Persistence based on lbp scale space / I. Janusch, W. Kropatsch / Talk: CTIC 2016 6th International Workshop on Computational Topology in Image Context 2016, Marseille, France; 2016-06-15 - 2016-06-17; in: "Proceeding CTIC 2016 Proceedings of the 6th International Workshop on Computational Topology in Image Context", J. Mari, A. Bac (ed.); Lecture Notes in Computer Science, Springer-Verlag New York, Inc. New York, NY, USA ©2016, volume LNCS 9667, Marseille, F, June 2016 (2016), ISBN: 978-3-319-39440-4; 240 - 252
  • Noise Robustness of Irregular Graph Pyramids using LBP and Combinatorial Maps / C. Körner, I. Janusch, W. Kropatsch / Talk: OAGM/AAPR & ARW 2016 Workshop, Wels, Österreich (invited); 2016-05-11 - 2016-05-13; in: "Vision Meets Robotics, Proceedings of the ÖAGM Workshop 2016", K. Niel, W. Burger (ed.); Wels, Austria (2016), 101 - 108
  • Shape Classification According to LBP Persistence of Critical Points / I. Janusch, W. Kropatsch / Talk: DGCI 2016: 19th IAPR international conference on Discrete Geometry for Computer Imagery 2016, Nantes, Frankreich (invited); 2016-04-18 - 2016-04-20; in: "Proceedings of the 19th international conference on Discrete Geometry for Computer Imagery", N. Normand, J. Guédon, F. Autrusseau (ed.); Lecture Notes in Computer Science - Springer, Berlin Heidelberg, volume LNCS 9647, Nantes - Frankreich, April 2016. (2016), ISBN: 978-3-319-32359-6; 166 - 177
  • Shape Classification according to LBP Persistence of Critical Points / I. Janusch, W. Kropatsch / Poster: 21st Computer Vision Winter Workshop (CVWW2016), Rimske Toplice, Slovenia (invited); 2016-02-03 - 2016-02-05; in: "Proceedings of the 21st Computer Vision Winter Workshop", Slovenian Pattern Recognition Society, Ljubljana, February 2016 (2016), ISBN: 978-961-90901-7-6; 12
  • A concept for shape representation with linked local coordinate systems / M. Kaindl, W. Kropatsch / Talk: 21st Computer Vision Winter Workshop (CVWW2016), Rimske Toplice, Slovenia; 2016-02-03 - 2016-02-05; in: "Proceedings of the 21st Computer Vision Winter Workshop", L. Cehovin, R. Mandeljc, V. Struc (ed.); Slovenian Pattern Recognition Society, Ljubljana, February 2016 (2016), ISBN: 978-961-90901-7-6; 9 pages
  • A Novel Concept for Smart Camera Image Stitching / M. Banaeyan, H. Huber, W. Kropatsch, R. Barth / Talk: 21st Computer Vision Winter Workshop (CVWW2016), Rimske Toplice, Slovenia; 2016-02-03 - 2016-02-05; in: "Proceedings of the 21st Computer Vision Winter Workshop", L. Cehovin, R. Mandeljc, V. Struc (ed.); Slovenian Pattern Recognition Society, Ljubljana, February 2016 (2016), ISBN: 978-961-90901-7-6; 9 pages
  • 2d tracking of platynereis dumerilii worms during spawning / D. Pucher, N. Artner, W. Kropatsch / Talk: 21st Computer Vision Winter Workshop (CVWW2016), Rimske Toplice, Slovenia; 2016-02-03 - 2016-02-05; in: "Proceedings of the 21st Computer Vision Winter Workshop", L. Cehovin, R. Mandeljc, V. Struc (ed.); Slovenian Pattern Recognition Society, Ljubljana, February 2016 (2016), ISBN: 978-961-90901-7-6; 9 pages
  • Manifold Representation of Fabric: A Challenging Task? / J. Stria, I. Janusch, N. Artner, V. Hlavac, W. Kropatsch / Talk: 21st Computer Vision Winter Workshop (CVWW2016), Rimske Toplice, Slovenia (invited); 2016-02-03 - 2016-02-05
  • A framework for the extraction of quantitative traits from 2d images of mature Arabidopsis thaliana / M. Augustin, Y. Haxhimusa, W. Busch, W. Kropatsch / Machine Vision and Applications, 27 (2016), 5; 647 - 661
  • Train Detection and Tracking in Optical Time Domain Reflectometry (OTDR) Signals / A. Papp, C. Wiesmeyr, M. Litzenberger, H. Garn, W. Kropatsch / Pattern Recognition, 9796 German Conference on Pattern Recognition (2016), Lecture Notes in Computer Science (LNCS); 320 - 331
  • Topological Attribute Patterns for texture recognition / T. Nguyen, A. Manzanera, W. Kropatsch, X. Nguyen / Pattern Recognition Letters, 80 (2016), 91 - 97
  • Robustness Diagram with Loop and Time Controls For System Modelling and Scenario Extraction with Energy System Applications / J. Malinao, F. Judex, T. Selke, G. Zucker, H. Adorna, J. Caro, W. Kropatsch / Energy Procedia, 88 (2016), 537 - 543
  • Detecting ellipses in elongated shapes using the thickness profile / A. Gabdulkhakova, W. Kropatsch / in: "Joint IAPR International Workshops on Statistical Techniques in Pattern Recognition (SPR) and Structural and Syntactic Pattern Recognition (SSPR)", Springer, Cham, 2016, ISBN: 978-3-319-49055-7, 412 - 423
  • Topology-based image segmentation using LBP pyramids / M. Cerman, I. Janusch, R. González-Díaz, W. Kropatsch / Machine Vision and Applications, online (2016), 14 pages

2015

2014

2013

2012

2011

2010

  • Universal Seed Skin Segmentation / R. Khan, A. Hanbury, J. Stöttinger / Talk: 6th International Symposium on Visual Computing, Las Vegas, USA; 2010-11-29 - 2010-12-01; in: "Advances in Visual Computing", G. Bebis, R. Boyle, B. Parvin, D. Koracin, R. Chung, R. Hammound, M. Hussain, T. Kar-Han, R. Crawfis, D. Thalmann, D. Kao, L. Avila (ed.); Lecture Notes in Computer Science, 6454 (2010), ISSN: 0302-9743; 75 - 84
  • The Efficiency of a Homology Algorithm based on Discrete Morse Theory and Coreductions / Sh. Harker, K. Mischaikow, M. Mrozek, V. Nanda, H. Wagner, M. Juda, P. Dlotko / Talk: 3rd International Workshop on Computational Topology in Image Context - CTIC 2010, Chipiona, Spain; 2010-11-10 - 2010-11-12
  • Systematic Evaluation of Spatio-temporal Features on Comparative Video Challenges / J. Stöttinger, B. Goras, T. Pönitz, N. Sebe, A. Hanbury, T. Gevers / Talk: Workshop on Video Event Categorization, Tagging and Retrieval, Queenstown, Neuseeland; 2010-11-09; in: "Computer Vision - ACCV 2010 Workshops", R. Koch, F. Huang (ed.); Lecture Notes in Computer Science, 6468 (2011), ISSN: 0302-9743; 349 - 358
  • Behavior and properties of spatio-temporal local features under visual transformations / J. Stöttinger, B. Goras, N. Sebe, A. Hanbury / Poster: ACM Multimedia 2010 International Conference, Florenz, Italien; 2010-10-25 - 2010-10-29; in: "Proceedings of the ACM Multimedia 2010 International Conference", Association for Computing Machinery (ACM), New York (2010), ISBN: 9781605589336; 1155 - 1158
  • Affective image classification using features inspired by psychology and art theory / J. Machajdik, A. Hanbury / Talk: ACM Multimedia 2010 International Conference, Florenz, Italien; 2010-10-25 - 2010-10-29; in: "Proceedings of the ACM Multimedia 2010 International Conference", Association for Computing Machinery (ACM), New York (2010), ISBN: 9781605589336; 83 - 92
  • Skin detection: A random forest approach / R. Khan, A. Hanbury, J. Stöttinger / Poster: International Conference on Image Processing 2010, Hong Kong; 2010-09-26 - 2010-09-29; in: "2010 IEEE International Conference on Image Processing", IEEE, (2010), ISBN: 978-1-4244-7994-8; 4613 - 4616
  • Next Generation Typeface Representations: Revisiting Parametric Fonts / T. Hassan, C. Hu, R. Hersch / Talk: 10th ACM Symposium on Document Engineering 2010, Manchester; 2010-09-21 - 2010-09-24; in: "Proceedings of the 2010 ACM Symposium on Document Engineering", Association for Computing Machinery (ACM), (2010), ISBN: 978-1-4503-0232-6; 181 - 184
  • Towards a Common Evaluation Strategy for Table / T. Hassan / Talk: 10th ACM Symposium on Document Engineering 2010, Manchester; 2010-09-21 - 2010-09-24
  • Combining Regular Decimation and Dual Graph Contraction for Hierarchical Image Segmentation / F. Torres Garcia, R. Marfill, Y. Haxhimusa, A. Bandera / Talk: 3rd International Workshop on Computational Topology in Image Context - CTIC 2010, Chipiona; 2010-09-10 - 2010-09-12; in: "3rd International Workshop on Computational Topology in Image Context", R. González-Díaz, P. Real (ed.); ACM, Sevilla, Spain (2010), ISSN: 1885-4508; 97 - 104
  • Algorithm to Compute a Minimal Length Basis of Representative Cocycles of Cohomology Generators / M. Iglesias-Ham, E. Garcia, W. Kropatsch, R. González-Díaz / Talk: 3rd International Workshop on Computational Topology in Image Context - CTIC 2010, Chipiona; 2010-09-10 - 2010-09-12; in: "3rd Workshop on Computational Topology in Image Context (CTIC)", Roc\'io Gonz\'alez D\'iaz and Pedro Real Jurado, University of Sevilla, Spain (2010), ISSN: 1885-4508; 121 - 127
  • On the search of Optimal Reconstruction Resolution / E. Vucini, W. Kropatsch / Talk: 3rd International Workshop on Computational Topology in Image Context - CTIC 2010, Chipiona (invited); 2010-09-10 - 2010-09-12
  • FeEval - A Dataset for Evaluation of Spatio-temporal Local Features / J. Stöttinger, S. Zambanini, R. Khan, A. Hanbury / Poster: 2010 20th International Conference on Pattern Recognition (ICPR), Istanbul, Türkei; 2010-08-23 - 2010-08-26; in: "2010 20th International Conference on Pattern Recognition (ICPR)", M. Cetin, K. Boyer, S. Lee (ed.); IEEE, (2010), ISBN: 9780769541099; 499 - 502
  • Augmentation of Skin Segmentation / R. Khan, A. Hanbury, J. Stöttinger / Talk: 2010 International Conference on Image Processing, Computer Vision, & Pattern Recognition, IPCV 2010, Las Vegas, USA; 2010-07-12 - 2010-07-15; in: "Proceedings of the 2010 International Conference on Image Processing, Computer Vision, & Pattern Recognition, IPCV 2010, July 12-15, 2010, Las Vegas, Nevada, USA, 2 Volumes", H. Arabnia, L. Deligiannidis, G. Schaefer, A. Solo (ed.); CSREA Press, (2010), ISBN: 1-60132-154-6; 473 - 479
  • Image-based Grasping Point Detectin using Boosted Histograms of Oriented Gradients / L. Lefakis, H. Wildenauer, M. Garcia-Tubio, S. Lech / Talk: International Conference on Image Analysis and Recognition (ICIAR), Protugal; 2010-06-21 - 2010-06-23; in: "Proceedings of the ICIAR 2010", (2010), 1 - 10
  • Efficient and Distinct Large Scale Bags of Words / T. Pönitz, J. Stöttinger, R. Donner, A. Hanbury / Talk: 34th Annual Workshop of the Austrian Association for Pattern Recognition (AAPR) and the WG Visual Computing of the Austrian Computer Society, Zwettl; 2010-05-27 - 2010-05-28; in: "Computer Vision in a Global Society - 34th Annual Workshop of the Austrian Association for Pattern Recognition (AAPR) and the WG Visual Computing of the Austrian Computer Society", P. Blauensteiner, M. Lettner, J. Stöttinger (ed.); Österreichische Computer Gesellschaft, Wien (2010), ISBN: 9783854032670; 139 - 146
  • Representing Scenes with dynamic objects by Graph Pyramids / W. Kropatsch / Talk: The Seventh IASTED International Conference on Signal Processing, Pattern Recognition and Applications - SPPRA 2010, Innsbruck (invited); 2010-02-17 - 2010-02-19
  • Weighted Skin Color Segmentation and Detection Using Graph Cuts / R. Khan, A. Hanbury, J. Stöttinger / Poster: Computer Vision Winter Workshop 2010, Nove Hrady; 2010-02-03 - 2010-02-05; in: "Proceedings of the Computer Vision Winter Workshop 2010", L. Spaček, V. Franc (ed.); Czech Society for Cybernetics and Informatics, Prague (2010), ISBN: 978-80-254-6499-1; 107 - 114
  • Co-occurrence Bag of Words for Object Recognition / N. Bhatti, A. Hanbury / Poster: Computer Vision Winter Workshop 2010, Nove Hrady; 2010-02-03 - 2010-02-05; in: "Proceedings of the Computer Vision Winter Workshop 2010", L. Spaček, V. Franc (ed.); Czech Society for Cybernetics and Informatics, Prague (2010), ISBN: 978-80-254-6499-1; 21 - 28
  • Irregular {L}aplacian {G}raph {P}yramid / D. Shao, W. Kropatsch / Talk: Computer Vision Winter Workshop 2010, Nove Hrady; 2010-02-03 - 2010-02-05; in: "Proceedings of the 15th Computer Vision Winter Workshop", Libor {\v S}pa{\v c}ek and Vojt{\v e}ch Franc, Czech Society for Cybernetics and Informatics, and the Center of Machine Perception at CTU Prague/Nov\'e Hrady, Cz (2010), ISBN: 978-80-254-6499-1; 66 - 71
  • Multi-View Integration for a Rotating 3D Object / L. Mateos, W. Kropatsch / Talk: Computer Vision Winter Workshop 2010, Nove Hrady; 2010-02-03 - 2010-02-05; in: "Proceedings of the 15th Computer Vision Winter Workshop", Libor {\v S}pa{\v c}ek and Vojt{\v e}ch Franc, Czech Society for Cybernetics and Informatics, and the Center of Machine Perception at CTU Prague/Nov\'e Hrady, Cz (2010), ISBN: 978-80-254-6499-1; 72 - 76
  • Representing the Surface of Objects by Combinatorial Pyramids / E. Antunez, H. Molina Abril, W. Kropatsch / Talk: Computer Vision Winter Workshop 2010, Nove Hrady; 2010-02-03 - 2010-02-05; in: "Proceedings of the 15th Computer Vision Winter Workshop", Libor {\v S}pa{\v c}ek and Vojt{\v e}ch Franc, Czech Society for Cybernetics and Informatics, and the Center of Machine Perception at CTU Prague/Nov\'e Hrady, Cz (2010), ISBN: 978-80-254-6499-1; 85 - 90
  • Affective Image Classification / J. Machajdik, A. Hanbury / Talk: Computer Vision Winter Workshop 2010, Nove Hrady; 2010-02-03 - 2010-02-05
  • Multi-scale 2D tracking of articulated objects using hierarchical spring systems / N. Artner, A. Ion, W. Kropatsch / Pattern Recognition, 44 (2010), 4; 800 - 810
  • New approach to the perception of 3D shape based on veridicality, complexity, symmetry and volume / Z. Pizlo, T. Sawada, Y. Li, W. Kropatsch, R. Steinman / Vision Research, 50 (2010), 1 - 11
  • Robust and efficient analysis of signals and images / W. Kropatsch, J. Ruiz-Shulcloper / Pattern Recognition Letters, 31 (2010), 6; 445 - 446

2009

2008

2007

2006

2005

2004

2003

2002

1999

  • A Simulation of a Fuzzy Logic Based Heating Controller with ANFIS / H. Zainzinger, H. Wildenauer, G. Schildt / Talk: International Conference on Computational Intelligence for Modelling, Control and Automation, Vienna, Austria; 1999; in: "Proc. Int. Conference on Computational Intelligence for Modelling, Control and Automation", (1999)

 

2018

2017

2015

2014

2013

  • Tracking Related Multiple Targets in Videos / Doctoral Thesis by N. Artner / Supervisor, Reviewer: W. Kropatsch, H. Bunke; Fakultät für Informatik der Technischen Universität Wien; Institut für Computergrafik und Algorithmen; PRIP 186/3, 2013; oral examination: 2013-12-06

2012

2011

2010

2009

2008

2007

2006

2002

  • Robust Analysis of Spot Array Images / Doctoral Thesis by N Brändle / "Robust Analysis of Spot Array Images"; Institut für Rechnergestützte Automation, Arbeitsgruppe für Mustererkennung und Bildverarbeitung 183/2, 2002
  • Generalized Canonical Correlation Analysis for Object Recognition / Doctoral Thesis by T. Melzer / "Generalized Canonical Correlation Analysis for Object Recognition"; Institut für Rechnergestützte Automation, Arbeitsgruppe für Mustererkennung und Bildverarbeitung, 183/2, 2002

 

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