Publications

[112] Karlheinz Gutjahr, Can Atalay, Roland Perko, Hannes Raggam, Janik Deutscher, Mathias Schardt, and Umut Gunes Sefercik. Novel radargrammetric approach for Capella Space imagery. In EARSeL Symposium, pages 284–286, Paphos, Cyprus, September 2022. [PDF]

[111] Roland Perko, Sead Mustafic, Alexander Almer, and Peter M. Roth. Counting everything in remote sensing – The need for benchmarks. In IEEE International Geoscience and Remote Sensing Symposium, pages 5369–5372, Kuala Lumpur, Malaysia, July 2022. [PDF]

[110] Sead Mustafic, Manuela Hirschmugl, Roland Perko, and Andreas Wimmer. Deep learning for improved individual tree detection from LiDAR data. In IEEE International Geoscience and Remote Sensing Symposium, pages 3516–3519, Kuala Lumpur, Malaysia, July 2022. [PDF]

[109] Roland Perko, Alexander Almer, Hannes Fassold, Anna Maly, Robert Wenighofer, Julian Eder, and Peter Hofer. Subsurface movement control. In Urban Operations Expert Talks, pages 1-6, Eisenerz, Austria, July 2022. [PDF]

[108] Roland Perko, Hannes Fassold, Alexander Almer, Robert Wenighofer, and Peter Hofer. Human tracking and pose estimation for subsurface operations. In Austrian Association for Pattern Recognition Workshop, pages 77-79, St. Pölten, Austria, November 2021. [PDF]

[107] Javier Gibran Apud Baca, Thomas Jantos, Mario Theuermann, Mohamed Amin Hamdad, Jan Steinbrener, Stephan Weiss, Alexander Almer, and Roland Perko. Automated data annotation for 6-DoF AI-based navigation algorithm development. Journal of Imaging, 7(11), November 2021. [PDF]

[106] Alexander Almer, Thomas Schnabel, Roland Perko, and Armin Köfler. Remote sensing solutions for an efficient support of forest fire management phases. In International Congress on Fire in the Earth System: Humans and Nature, number 1, pages 118-119, Valencia, Spain, November 2021. [PDF]

[105] Phillipp Fanta-Jende, Christoph Sulzbachner, Alexander Almer, Roland Perko, Thomas Schnabel, and Georg Aumayr. NRT-COP - UAS-basierte Aufnahme multimodaler Bilddaten zur echtzeitnahen Bereitstellung großflächiger Lagebildinformation. In Disaster Research Days, pages 96-97, Innsbruck, Austria, October 2021. [PDF]

[104] Robert Wenighofer, Nina Gegenhuber, and Roland Perko. Interdisziplinäre Unterstützung für Einsatzkräfte bei Untertage-Katastrophenszenarien. In Disaster Research Days, pages 23-23, Innsbruck, Austria, October 2021. [PDF]

[103] Roland Perko, Alexander Almer, Mario Theuermann, Manfred Klopschitz, Thomas Schnabel, and Peter M. Roth. Protocol design issues for object density estimation and counting in remote sensing. In IEEE International Geoscience and Remote Sensing Symposium, pages 2771-2774, Brussels, Belgium, July 2021. [PDF]

[102] Roland Perko. Photogrammetric Computer Vision in Remote Sensing. Habilitation, Graz University of Technology, April 2021. p. 369. [PDF]

[101] Richard Ladstädter, Wolfgang Höppl, Karlheinz Gutjahr, Roland Perko, Ana Gregorac, and Edin Haskic. Visuelle Odometrie im Einsatz für den Breitbandausbau. In Geodätische Woche, number 21, pages 95-102, Obergurgl, Austria, February 2021. [PDF]

[100] Roland Perko, Manfred Klopschitz, Alexander Almer, and Peter M. Roth. Critical aspects of person counting and density estimation. Journal of Imaging, 7(2), January 2021. [PDF]

[99] Alexander Almer, Thomas Schnabel, Hannes Raggam, Roland Perko, Armin Köfler, and Mathias Schardt. Airborne high resolution remote sensing for near real time fire detection and surveillance. In Disaster Research Days, Innsbruck, Austria, October 2020. [PDF]

[98] Alexander Almer, Thomas Schnabel, Anna Weber, Armin Köfler, Roland Perko, Stefan Ladstätter, and Manfred Klopschitz. Multi-modal and multi-sensor approach to support security management tasks. In Interdisciplinary Information Management Talks, Kutna Hora, Czech Republic, September 2020. [PDF]

[97] Ana Gregorac, Karlheinz Gutjahr, Richard Ladstädter, Roland Perko, and Wolfgang Höppl. Visual odometry for industrial cable laying. In Joint Austrian Computer Vision and Robotics Workshop, pages 92-94, Graz, Austria, July 2020. [PDF]

[96] Roland Perko, Hannes Raggam, Karlheinz Gutjahr,Wolfgang Koppe, and Jürgen Janoth. Ground control point retrieval from SAR satellite imagery. In Joint Austrian Computer Vision and Robotics Workshop, pages 87-89, Graz, Austria, July 2020. [PDF]

[95] Peter M. Roth, Gerald Steinbauer, Friedrich Fraundofer, Mathias Brandstötter, and Roland Perko, editors. Proceedings of the Joint Austrian Computer Vision and Robotics Workshop. Verlag der Technischen Universität Graz, July 2020. [PDF]

[94] Alexander Almer, Thomas Schnabel, Roland Perko, and Armin Köfler. Airborne high resolution remote sensing for near real time forest fire detection and surveillance. In EARSeL Forest Fire Special Interest Group Workshop, number 12, pages 39-40, Rome, Italy, October 2019. [PDF]

[93] Alexander Almer, Thomas Schnabel, Anna Weber, Armin Köfler, and Roland Perko. Multi-level information strategy to support disaster management processes. In Interdisciplinary Information Management Talks, pages 189-197, Kutna Hora, Czech Republic, September 2019. [PDF]

[92] Roland Perko, Hannes Raggam, and Peter M. Roth. Mapping with Pleiades - End-to-end workflow. Remote Sensing, Special Issue on 3D Reconstruction Based on Aerial and Satellite Imagery, 11(17):2052, September 2019. [PDF]

[91] Roland Perko, Mathias Schardt, Livia Piermattei, Stefan Auer, and Peter M. Roth. Multiple view geometry in remote sensing: An empirical study based on Pleiades satellite images. In IEEE International Geoscience and Remote Sensing Symposium, Yokohama, page 3629-3632, Japan, August 2019. [PDF]

[90] Roland Perko, Manuela Hirschmugl, Janik Deutscher, Mathias Schardt, Markus Hollaus, and Peter M. Roth. Using multiple along an across track Pleiades stereo images for improved digital surface model generation. In EARSeL Symposium, number 38, pages 134-135, Salzburg, Austria, July 2019. [PDF]

[89] Roland Perko. Mapping with Pleiades. Master's thesis, Graz, University of Technology, June 2019. winner of the first place of the AGEO award and of the OCG sponsorship award. [PDF]

[88] Roland Perko, Hannes Raggam, Mathias Schardt, and Peter Michael Roth. Very high resolution mapping with the Pleiades satellite constellation. American Journal of Remote Sensing, 6(2):89-99, December 2018. [PDF]

[87] Ursula Schmitt, Manuela Hirschmugl, Roland Perko, Mathias Schardt, James Wang, Ping Ting Chew, Clarice Xue, and Hassan Ibrahim. 3D-Pleiades mapping for IPCC reporting. In Mapping Urban Areas from Space, number 2, Frascati, Italy, October 2018. [PDF]

[86] Roland Perko, Klaus Aichhorn, Andreas Wimmer, and Karl Haslinger. Mapping critical events with UAV-based photogrammetry. In EARSeL Symposium, number 38, page 108, Chania, Greece, July 2018. [PDF]

[85] Roland Perko, Wolfgang Koppe, Hannes Raggam, Karlheinz Gutjahr, and Mathias Schardt. Deriving accurate GCPs from TerraSAR-X stereo data over urban areas. In EARSeL Symposium, number 38, page 19, Chania, Greece, July 2018. [PDF]

[84] Alexander Almer, Thomas Schnabel, Armin Köfler, Roland Perko, and Richard Feischl. Ein Multi-Level Managementsystem für Waldbrandsituationen. In AGIT Journal für Angewandte Geoinformatik, pages 242-247, Salzburg, Austria, July 2018. [PDF]

[83] Armin Köfler, Alexander Almer, Thomas Schnabel, Roland Perko, and Viktoria Pammer-Schindler. Echtzeitnahe Entscheidungsunterstützung im Sicherheitsmanagement von Großveranstaltungen. In AGIT Journal für Angewandte Geoinformatik, pages 132-137, Salzburg, Austria, July 2018. [PDF]

[82] Birgit Mösl, Wolfgang Vorraber, Julia Birgit Brugger, Dietmar Neubacher, Klaus Mostegel, Rainer Prüller, Konrad Rautz, Sigmar Stadlmeier, Roland Perko, Thomas Schnabel, Alexander Almer, Klaus Aichhorn, and Siegfried Vössner. SmartScout - Fostering PPDR mission management by integrating different sensor platforms. In Austro-European Security Research Innovation Days Conference, June 2018. [PDF]

[81] Alexander Almer, Roland Perko, Thomas Schnabel, Armin Köfler, Sabine Lukas, Viktoria Pammer-Schindler, and Richard Feischl. Forest fire fighting management concepts based on near real-time aerial support strategies. In EARSeL Forest Fire Special Interest Group Workshop, number 11, Chania, Greece, September 2017. [PDF]

[80] Manfred Klopschitz, Roland Perko, Gerald Lodron, Gerhard Paar, and Heinz Mayer. Projected texture fusion. In International Symposium on Image and Signal Processing and Analysis, volume 10, pages 109-114, Ljubljana, Slovenia, September 2017. IEEE. [PDF]

[79] Janik Deutscher, Klaus Granica, Martin Steinegger, Manuela Hirschmugl, Roland Perko, and Mathias Schardt. Updating LiDAR-derived crown cover density products with Sentinel-2. In IEEE International Geoscience and Remote Sensing Symposium, pages 2867-2870, Fort Worth, TX, July 2017. [PDF]

[78] Roland Perko, Karlheinz Gutjahr, Maria Krüger, Hannes Raggam, and Mathias Schardt. DEM-based epipolar rectification for optimized radargrammetry. In IEEE International Geoscience and Remote Sensing Symposium, pages 969-972, Fort Worth, TX, July 2017. [PDF]

[77] Alexander Almer, Thomas Schnabel, Sabine Lukas, Roland Perko, Armin Köfler, and Viktoria Pammer-Schindler. International forest firefighting concepts based on aerial support strategies. In International Conference on Telecommunications, number 14, pages 123-130, Zagreb, Croatia, June 2017. [PDF]

[76] Janik Deutscher, Karlheinz Gutjahr, Roland Perko, Hannes Raggam, Manuela Hirschmugl, and Mathias Schardt. Humid tropical forest monitoring with multi-temporal L-, C- and X-Band SAR data. In MultiTemp, pages 1-4, Bruges, Belgium, June 2017. [PDF]

[75] Philip Leopold, Wang Tao, Roland Perko, Gerhard Heiss, Martin Jung, Armin Oblin, and Yongshuang Zhang. Comparing landslide mapping from DTM satellite derived data and field based studies of loess sediments in western china. World Landslide Forum 4 - Advancing Culture of Living with Landslides, 2:87-95, June 2017. [PDF]

[74] Andreas Schönfelder, Roland Perko, Karlheinz Gutjahr, and Mathias Schardt. Fusion of point clouds derived from aerial images. In OAGM and ARW Joint Workshop, number 2, pages 139-144, Wien, Austria, May 2017. [PDF]

[73] Manuela Hirschmugl, Mathias Schardt, Roland Perko, Viktoria Schell, and Carina Sobe. Tropical forest degradation monitoring: Radiometric issues of using both Landsat 8 and Sentinel 2 in one time series. In ForestSAT, Santiago, Chile, November 2016. [PDF]

[72] Janik Deutscher, Heinz Gallaun, Martin Steinegger, Manuela Hirschmugl, Roland Perko, Karlheinz Gutjahr, Hannes Raggam, and Mathias Schardt. Applying time-series analysis on multi-sensor imagery to map forest change. In EARSeL SIG Forestry Workshop, volume 3, Krakow, Poland, 2016. [PDF]

[71] Roland Perko and Christopher Zach. Globally optimal robust DSM fusion. European Journal of Remote Sensing, 49:489-511, September 2016. [PDF]

[70] Henrik J. Persson and Roland Perko. Assessment of boreal forest height from WorldView-2 satellite stereo images. Remote Sensing Letters, 7(12):1150-1159, July 2016. [PDF]

[69] Sabine Lukas, Thomas Schnabel, Alexander Almer, and Roland Perko. 3F-MS - Multi- Level "ForestFireFighting - Management System" zur optimierten Einsatzführung von Boden- und Luftkräften in Waldbrandsituationen. In Symposium und Fachmesse für Angewandte GeoInformatik, AGIT- Journal für Angewandte Geoinformatik, 2-2016, Salzburg, Austria, July 2016. [PDF]

[68] Roland Perko, Manuela Hirschmugl, Evelyn Papst, and Ursula Schmitt. Mapping Singapore by Pleiades stereo data: Carbon reporting and more. In EARSeL Symposium, volume 36, page 170, Bonn, Germany, June 2016. [PDF]

[67] Roland Perko, Karlheinz Gutjahr, Hannes Raggam, and Mathias Schardt. DEM-based epipolar rectification for radargrammetry. In EARSeL Symposium, volume 36, pages 150-151, Bonn, Germany, June 2016. [PDF]

[66] Alexander Almer, Roland Perko, Helmut Schrom-Feiertag, Thomas Schnabel, and Lucas Paletta. Critical situation monitoring at large scale events from airborne video based crowd dynamics analysis. In AGILE International Conference on Geographic Information Science, number 19, Helsinki, Finland, 2016. winner of the best full paper award. [PDF]

[65] Alexander Almer, Thomas Schnabel, Roland Perko, Hannes Raggam, and Sabine Lukas. Near real-time common operational picture (COP) for natural disaster management support. In The short papers and poster papers of the 19th AGILE Conference on Geographic Information Science, number 19, pages 1-3, Helsinki, Finland, 2016. [PDF]

[64] Alexander Almer, Thomas Schnabel, Roland Perko, Hannes Raggam, Armin Köfler, and Richard Feischl. Multi-level wild land fire fighting management support system for an optimized guidance of ground and air forces. In European Geosciences Union General Assembly Conference Abstracts, volume 18, pages 17148-17149, Vienna, Austria, 2016. [PDF]

[63] Patrick Polatsek, Wanda Benesova, Lucas Paletta, and Roland Perko. Novelty-based spatiotemporal saliency detection for prediction of gaze in egocentric video. IEEE Signal Processing Letters, 23(3):394-398, 2016. [PDF]

[62] Alexander Almer, Thomas Schnabel, Roland Perko, Hannes Raggam, Armin Köfler, Michael Schmidt, Harald Schlemmer, Eral Türkyilmaz, and Richard Feischl. Multilevel "forest fire fighting - management system" for an optimized operational guidance of ground and air forces leadership in forest fire situations. In EARSeL Forest Fire Special Interest Group Workshop, number 10, Limassol, Cyprus 2015. [PDF]

[61] Lucas Paletta, Roland Perko, and Michael Schwarz. Aggregation of driver distraction for large scale real-world studies. In Book of Abstracts of the 18th European Conference on Eye Movements, Vienna, Austria, 2015. [PDF]

[60] Karlheinz Gutjahr, Roland Perko, Hannes Raggam, and Mathias Schardt. 3D-mapping from TerraSAR-X staring spotlight data. In IEEE International Geoscience and Remote Sensing Symposium, pages 1817-1820, Milano, Italy, July 2015. [PDF]

[59] Roland Perko and Christopher Zach. Globally optimal DSM fusion. In EARSeL Symposium, number 35, pages 32-37, Stockholm, Sweden, June 2015. [PDF]

[58] Roland Perko, Hannes Raggam, Karlheinz Gutjahr, and Mathias Schardt. Advanced DTM generation from very high resolution satellite stereo images. In ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, volume II-3/W4, pages 165-172, Munich, Germany, March 2015. [PDF]

[57] Simon Hennig, Wolfgang Koppe, Karlheinz Gutjahr, Roland Perko, and Hannes Raggam. Evaluation of radargrammetry DEMs based on TerraSAR-X staring spotlight imagery. In 35. Wissenschaftlich-Technische Jahrestagung der Deutschen Gesellschaft für Photogrammetrie, Fernerkundung und Geoinformation (DGPF), number 24, pages 1-8, Cologne, Germany, March 2015. [PDF]

[56] Roland Perko, Michael Schwarz, and Lucas Paletta. Aggregated mapping of driver attention from matched optical flow. In IEEE International Conference on Image Processing, number 21, pages 214-218, Paris, France, August 2014. [PDF]

[55] Roland Perko, Thomas Schnabel, Alexander Almer, and Lucas Paletta. Towards view invariant person counting and crowd density estimation for remote vision-based services. In IEEE Electrotechnical and Computer Science Conference, volume B, pages 80-83, Portoroz, Slovenia, September 2014. winner of the best paper award. [PDF]

[54] Roland Perko, Hannes Raggam, Karlheinz Gutjahr, and Mathias Schardt. Assessment of the mapping potential of Pleiades stereo and triplet data. In ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences, volume II-3, pages 103-109, Zurich, Switzerland, September 2014. [PDF]

[53] Karlheinz Gutjahr, Roland Perko, Hannes Raggam, and Mathias Schardt. The epipolarity constraint in stereo-radargrammetric DEM generation. IEEE Transactions on Geoscience and Remote Sensing, 52(8):5014-5022, August 2014. [PDF]

[52] Lucas Paletta, Michael Schwarz, Caroline Wollendorfer, and Roland Perko. Information fusion for driver distraction studies using eye tracking glasses. In International Conference on Applied Human Factors and Ergonomics, volume 5, pages 1279-1286, Krakow, Poland, July 2014. [PDF]

[51] Klaus Steinnocher, Roland Perko, and Martin Hofer. VHR Tri-Stereo Pleiades Satellitenbilder versus Airborne Laserscan Daten - Vergleich auf Basis von abgeleiteten 3DGebäudemodellen. In Strobl, Blaschke, Griesebner, and Zagel, editors, Symposium und Fachmesse für Angewandte GeoInformatik, pages 33-38, Salzburg, Austria, July 2014. [PDF]

[50] Armin Köfler, Thomas Schnabel, Roland Perko, Alexander Almer, and Helmut Schrom-Feiertag. Multi-Sensor Datenfusion zur Echtzeitlagevisualisierung und Kurzfristprognose bei Großevents. In Strobl, Blaschke, Griesebner, and Zagel, editors, Symposium und Fachmesse für Angewandte GeoInformatik, pages 68-73, Salzburg, Austria, July 2014. [PDF]

[49] Marco Scaioni, Roland Perko, and Mauricio Roberto Veronez. Special issue: Applications of surveying in land management. Earth Science Informatics, 7(2):69-70, May 2014. [PDF]

[48] Hermann Fürntratt, Hannes Fassold, Jakub Rosner, Andreas Wimmer, and Roland Perko. GPU - accelerated high quality semi-global stereo matching. In GPU Technology Conference, San Jose, CA, March 2014. Poster contribution. [PDF]

[47] Alexander Almer, Roland Perko, Thomas Schnabel, Lucas Paletta, and Ludwig Kastner. EVIVA - fluggestütztes Beobachtungs- und Analysesystem für Eventmonitoring mit videobasierter Verhaltensanalyse. In Strobl, Blaschke, Griesebner, and Zagel, editor, Symposium und Fachmesse für Angewandte GeoInformatik, pages 1-6, Salzburg, Austria, July 2013. [PDF]

[46] Roland Perko, Thomas Schnabel, Gerald Fritz, Alexander Almer, and Lucas Paletta. Airborne based high performance crowd monitoring for security applications. In J.-K. Kämäräinen and M. Koskela, editors, Scandinavian Conference on Image Analysis (SCIA), volume 7944, pages 664-674. Springer LNCS, Espoo, Finland, June 2013. [PDF]

[45] Roland Perko, Thomas Schnabel, Gerald Fritz, Alexander Almer, and Lucas Paletta. Counting people from above: Airborne video based crowd analysis. In Workshop of the Austrian Association for Pattern Recognition, number 37, pages 1-9, Innsbruck, Austria, May 2013. arXiv:1304.6213. winner of the best paper award. [PDF]

[44] Janik Deutscher, Roland Perko, Karlheinz Gutjahr, Manuela Hirschmugl, and Mathias Schardt. Mapping tropical rainforest canopy disturbances in 3D by COSMO-SkyMed spotlight InSAR-stereo data to detect areas of forest degradation. Remote Sensing, Special Issue "Advances in Remote Sensing of Forestry", 5(2):648-663, February 2013. [PDF]

[43] Manuela Hirschmugl, Roland Perko, Claudia Hörmann, Ursula Schmitt, and Mathias Schardt. Integrative use of SAR and optical data for forest mapping in the Congo basin. In International Conference of the African Association of Remote Sensing and the Environment (AARSE), number 9, pages 1-9, El Jadida, Morroco, October 2012. [PDF]

[42] Stefan Ladstätter, Alexander Almer, Patrick M. Luley, Roland Perko, Lucas Paletta, and Johannes Weinzerl. Mobile Augmented Reality für Touristen (MARFT). In Griesebner, Strobl, Blaschke, editor, Symposium und Fachmesse für Angewandte GeoInformatik, pages 270-275, Salzburg, Austria, July 2012. [PDF]

[41] Roland Perko, Hannes Raggam, Karlheinz Gutjahr, and Mathias Schardt. Agricultural field border line retrieval using optical and SAR imagery. In EARSeL Symposium, number 32, Mykonos, Greece, May 2012. [PDF]

[40] Patrick M. Luley, Roland Perko, Johannes Weinzerl, Lucas Paletta, and Alexander Almer. Mobile augmented reality for tourists - MARFT. In G. Gartner and F. Ortag, editors, Advances in Location-Based Services. 8th International Symposium on Location-Based Services, chapter I, 2, pages 21-36. Springer LNG&C, November 2011. [PDF]

[39] Roland Perko, Hannes Raggam, Karlheinz Gutjahr, and Mathias Schardt. Using worldwide available TerraSAR-X data to calibrate the geo-location accuracy of optical sensors. In IEEE International Geoscience and Remote Sensing Symposium, pages 2551-2554, Vancouver, Canada, July 2011. [PDF]

[38] Janik Deutscher, Roland Perko, Hannes Raggam, Karlheinz Gutjahr, and Mathias Schardt. Assessing canopy height and forest parameters at stand-level from high resolution optical and radar stereo imagery. In EARSeL Symposium, 1st Forestry Workshop: Operational Remote Sensing in Forest Management, number 31, Prague, Czech Republic, June 2011. [PDF]

[37] Roland Perko, Hannes Raggam, Janik Deutscher, Karlheinz Gutjahr, and Mathias Schardt. Forest assessment using high resolution SAR data in X-band. Remote Sensing, Special Issue "100 Years ISPRS - Advancing Remote Sensing Science", 3(4):792-815, April 2011. [PDF]

[36] Roland Perko, Hannes Raggam, Karlheinz Gutjahr, and Mathias Schardt. The capabilities of TerraSAR-X imagery for retrieval of forest parameters. In ISPRS International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, ISPRS Technical Commission VII Symposium: 100 Years ISPRS Advancing Remote Sensing Science, volume XXXVIII, pages 452-456, Vienna, Austria, July 2010. [PDF]

[35] Aleksey Sharov, Roland Pail, Roland Perko, Christoph Gisinger, Florian Heuberger, and Daniel Rieser. Eurasian arctic ice cover variations in nonhomogeneous geopotential. In ESA Living Planet Symposium, Special Publication SP-686, Bergen, Norway, June 2010. [PDF]

[34] Roland Perko and Aleš Leonardis. A framework for visual-context-aware object detection in still images. Computer Vision and Image Understanding, Special Issue on Multi-Camera and Multi-Modal Sensor Fusion, 114(6):700-711, June 2010. [PDF]

[33] Hannes Raggam, Roland Perko, Karlheinz Gutjahr, Nadine Kiefl, Wolfgang Koppe, and Simon Hennig. Accuracy assessment of 3D point retrieval from TerraSAR-X data sets. In European Conference on Synthetic Aperture Radar, number 8, pages 572-575, Aachen, Germany, June 2010. [PDF]

[32] Roland Perko, Hannes Raggam, Karlheinz Gutjahr, and Mathias Schardt. Deriving forest canopy height models using multi-beam TerraSAR-X imagery. In European Conference on Synthetic Aperture Radar, number 8, pages 568-571, Aachen, Germany, June 2010. [PDF]

[31] Roland Perko, Hannes Raggam, Karlheinz Gutjahr, and Mathias Schardt. Analysis of 3D forest canopy height models resulting from stereo-radargrammetric processing of TerraSAR-X images. In EARSeL Symposium, number 30, pages 537-544, Paris, France, June 2010. [PDF]

[30] Chariton Kalaitzidis, Manuela Hirschmugl, and Roland Perko. Towards a harmonized biomass potential assessment in europe: User requirements and initial developments using EO and terrestrial data. In EARSeL Symposium, number 30, pages 707-713, Paris, France, June 2010. [PDF]

[29] Hannes Raggam, Karlheinz Gutjahr, Roland Perko, and Mathias Schardt. Assessment of the stereo-radargrammetric mapping potential of TerraSAR-X multibeam spotlight data. IEEE Transactions on Geoscience and Remote Sensing, 48(2):971-977, February 2010. [PDF]

[28] Roland Perko, Lucas Paletta, and Aleš Leonardis. Learning contextual rules for priming object categories in images. In IEEE International Conference on Image Processing, number 16, pages 1429-1432, Cairo, Egypt, November 2009. [PDF]

[27] Hannes Raggam, Roland Perko, and Karlheinz Gutjahr. Automationsgestützte Herleitung von 3D-Information aus hochauflösenden SAR-Bilddaten. Österreichische Zeitschrift für Vermessung & Geoinformation, Austrian Society for Surveying and Geoinformation, 97(3):343-352, October 2009. [PDF]

[26] Hannes Raggam, Roland Perko, and Karlheinz Gutjahr. Investigation of the stereoradargrammetric mapping potential of TerraSAR-X. In EARSeL Symposium, number 29, pages 371-380, Chania, Greece, June 2009. [PDF]

[25] Roland Perko, Christian Wojek, Bernt Schiele, and Aleš Leonardis. Integrating visual context and object detection within a probabilistic framework. In L. Paletta and J. K. Tsotsos, editors, Attention in Cognitive Systems, volume 5395, pages 54-68. Springer LNAI, February 2009. [PDF]

[24] Hannes Raggam, Karlheinz Gutjahr, Roland Perko, and Mathias Schardt. Assessment of the potential of TerraSAR-X with respect to mapping applications using radargrammetric and interferometric techniques. In TerraSAR-X Science Team Meeting, number 3, DLR, Oberpfaffenhofen, Germany, November 2008. [PDF]

[23] Linde Vande Velde, Lucas Paletta, Katrin Amlacher, Patrick Luley, Alexander Almer, Dušan Omerčević, Roland Perko, and Aleš Leonardis. A mobile mapping data warehouse for emerging mobile vision services. In World Congress on Intelligent Transport Systems, number 15, New York City, NY, November 2008. [PDF]

[22] Roland Perko, Christian Wojek, Bernt Schiele, and Aleš Leonardis. Probabilistic combination of visual context based attention and object detection. In L. Paletta and J. K. Tsotsos, editors, International Workshop on Attention in Cognitive Systems (WAPCV 2008), number 5, pages 166-179, Santorini, Greece, May 2008. [PDF]

[21] Dušan Omerčević, Roland Perko, Alireza Tavakoli Targhi, Jan-Olof Eklundh, and Aleš Leonardis. Vegetation segmentation for boosting performance of MSER feature detector. In Computer Vision Winter Workshop, number 13, pages 17-23, Moravske Toplice, Slovenia, February 2008. [PDF]

[20] Roland Perko and Aleš Leonardis. Context driven focus of attention for object detection. In L. Paletta and E. Rome, editors, Attention in Cognitive Systems. Theories and Systems from an Interdisciplinary Viewpoint (WAPCV 2007), volume 4840, chapter 14, pages 216-233. Springer LNAI, December 2007. [PDF]

[19] Ulrich Steinhoff, Dušan Omerčević, Roland Perko, Bernt Schiele, and Aleš Leonardis. How computer vision can help in outdoor positioning. In European Conference on Ambient Intelligence, volume 4794, pages 124-141, Darmstadt, Germany, November 2007. [PDF]

[18] Roland Perko and Aleš Leonardis. Learning visual context for object detection. In Electrotechnical and Computer Science Conference, volume B, pages 163-166, Portorož, Slovenia, September 2007. [PDF]

[17] Roland Perko and Aleš Leonardis. Context awareness for object detection. In Workshop of the Austrian Association for Pattern Recognition, number 31, pages 65-72, Krumbach, Austria, May 2007. [PDF]

[16] Dušan Omerčević, Roland Perko, and Aleš Leonardis. Uporaba lokalnih značilnic vaplikacijah spoznavnega vida za urbana okolja (Local features in cognitive vision applications for urban environments). In Electrotechnical and Computer Science Conference, volume B, pages 197-200, Portorož, Slovenia, September 2006. [PDF]

[15] Manuela Hirschmugl, Heinz Gallaun, Roland Perko, and Mathias Schardt. Pansharpening - Methoden für digitale, sehr hoch auflösende Fernerkundungsdaten. In Symposium und Fachmesse für Angewandte GeoInformatik, number XVII, pages 270-276, Salzburg, Austria, July 2005. [PDF]

[14] Roland Perko, Philipp Fürnstahl, Joachim Bauer, and Andreas Klaus. Geometrical accuracy of Bayer pattern images. In International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, volume 13, pages 117-120, Plzen, Czech Republic, February 2005. [PDF]

[13] Roland Perko. Computer Vision for Large Format Digital Aerial Cameras. PhD thesis, Graz, University of Technology, Austria, October 2004. [PDF]

[12] Michael Gruber, Roland Perko, and Martin Ponticelli. The all digital photogrammetric workflow: Redundancy and robustness. In ISPRS Commission I: Sensors, Platforms and Imagery, number XX, pages 232-234, Istanbul, Turkey, July 2004. [PDF]

[11] Roland Perko, Andreas Klaus, and Michael Gruber. Quality comparison of digital and film-based images for photogrammetric purposes. In ISPRS Commission III: Theory and Algorithms, number XX, pages 1136-1140, Istanbul, Turkey, July 2004. [PDF]

[10] Andreas Klaus, Pierre Elbischger, Roland Perko, Joachim Bauer, Konrad Karner, and Horst Bischof. Camera calibration from a single night sky image. In Computer Vision and Pattern Recognition, volume I, pages 151-157, Washington, DC, June 2004. [PDF]

[9] Joachim Bauer, Konrad Karner, Andreas Klaus, and Roland Perko. Robust range image registration using a common plane. In International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, volume 12, pages 17-20, Plzen, Czech Republic, February 2004. [PDF]

[8] Roland Perko and Horst Bischof. Efficient implementation of higher order image interpolation. In International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision, volume 12, pages 213-218, Plzen, Czech Republic, February 2004. [PDF]

[7] Alexander Bornik, Peter Cech, Andrej Ferko and Roland Perko. Beyond image quality comparison. In European Association for Computer Graphics - Eurographics, pages 271-276, Granada, Spain, September 2003. [PDF]

[6] Michael Gruber, Franz Leberl, and Roland Perko. Paradigmenwechsel in der Photogrammetrie durch digitale Luftbildaufnahme? Photogrammetrie, Fernerkundung und Geoinformation, 4:285-297, August 2003. [PDF]

[5] Franz Leberl, Michael Gruber, Martin Ponticelli, Stefan Bernögger, and Roland Perko. The UltraCam large format aerial digital camera system. In The American Society for Photogrammetry & Remote Sensing Annual Convention, Anchorage, AK, May 2003. [PDF]

[4] Franz Leberl, Roland Perko, and Michael Gruber. Color in photogrammetric remote sensing. In ISPRS Commission VII: Resource and Environmental Monitoring, volume 34, pages 59-64, Hyderabad, India, December 2002. [PDF]

[3] Franz Leberl, Roland Perko, Michael Gruber, and Martin Ponticelli. Novel concepts for aerial digital cameras. In ISPRS Commission I: Sensors, Platforms and Imagery, volume XXXIV, Denver, CO, November 2002. [PDF]

[2] Roland Perko and Michael Gruber. Comparison of quality and information content of digital and film-based images. In ISPRS Commission III: Theory and Algorithms, volume XXXIV, pages 206-209, Graz, Austria, September 2002. [PDF]