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Recent Publications

This is "The Multimedia Signal Processing and Security Lab", short WaveLab, website. We are a research group at the Artificial Intelligence and Human Interfaces (AIHI) Department of the University of Salzburg led by Andreas Uhl. Our research is focused on Visual Data Processing and associated security questions. Most of our work is currently concentrated on Biometrics, Media Forensics and Media Security, Medical Image and Video Analysis, and application oriented fundamental research in digital humanities, individualised aquaculture and sustainable wood industry.
     

Media Security, Media Forensics, & Watermarking

 

Publications:

  1. [Joechl24a  ] PLUS Temporal Image Forensics Dataset Robert Joechl, Andreas Uhl In 2024 IEEE International Workshop on Information Forensics and Security (WIFS), pp. 1-6, Rome, Italy, December 2 - December 5, 2024
  2. [Joechl22a   ] Device (In)Dependence of Deep Learning-based Image Age Approximation Robert Joechl, Andreas Uhl 2024, Note: This work was accepted and presented in: 2022 ICPR-Workshop on Artificial Intelligence for Multimedia Forensics and Disinformation Detection. Montreal, Quebec, Canada. However, due to a technical issue on the publishing companies’ side, the work does not appear in the workshop proceedings
  3. [Hofbauer24a  ] Quality and Recognizability Estimation Video Encryption Database Heinz Hofbauer, Florent Autrusseau, Andreas Uhl Information Sciences 678, pp. 17, 2024
  4. [Lamminger23a  ] First Learning Steps to Recognize Faces in the Noise Lukas Lamminger, Heinz Hofbauer, Andreas Uhl In Proceedings of the 2023 ACM Workshop on Information Hiding and Multimedia Security, pp. 139–144, New York, NY, USA, IH&MMSec '23, Association for Computing Machinery, 2023
  5. [Joechl22b   ] Deep Learning Image Age Approximation - What is more Relevant: Image Content or Age Information? Robert Joechl, Andreas Uhl In 21th International Workshop on Digital-forensics and Watermarking (IWDW2022), pp. 114-128, Guilin, China, Springer LNCS, 13825, November 19 - November 21, 2022
  6. [Hofbauer22a   ] Utilizing CNNs for Cryptanalysis of Selective Biometric Face Sample Encryption Heinz Hofbauer, Yoanna Martínez-Díaz, Luis Santiago Luevano, Heydi Méndez-Vázquez, Andreas Uhl In Proceedings of the 26th International Conference on Pattern Recognition (ICPR), pp. 8, August 21 - August 25, 2022
  7. [Joechl21c   ] Effects of Image Compression on Image Age Approximation Robert Joechl, Andreas Uhl In 20th International Workshop on Digital-forensics and Watermarking (IWDW2021), pp. 102-116, Beijing, China, Springer LNCS, 13180, Springer International Publishing, November 20 - November 22, 2021
  8. [Paulitsch21a  ] Temporal Image Forensics: Using CNNs for a Chronological Ordering of Line-Scan Data Matthias Paulitsch, Andreas Vorderleitner, Andreas Uhl In Computational Science and Its Applications -- ICCSA 2021, pp. 147-162, Cham, LNCS, 12950, Springer International Publishing, 2021
  9. [Joechl21b   ] Apart from In-Field Sensor Defects, are there Additional Age Traces Hidden in a Digital Image? Robert Joechl, Andreas Uhl In 2021 IEEE International Workshop on Information Forensics and Security (WIFS), pp. 1-6, Montpellier, France, December 7 - December 10, 2021
  10. [Joechl21a    ] Identification Of In-Field Sensor Defects In The Context Of Image Age Approximation Robert Joechl, Andreas Uhl In 2021 IEEE International Conference on Image Processing (ICIP), pp. 3043-3047, Anchorage, AK, USA, September 19 - September 22, 2021
  11. [Kauba21c  ] Assessment of Sensor Ageing-Impact in Air Travelled Fingerprint Capturing Devices Christof Kauba, Simon Kirchgasser, Robert Jöchl, Andreas Uhl In Proceedings of the IEEE 20th International Conference of the Biometrics Special Interest Group (BIOSIG 2021), pp. 1-8, Darmstadt, Germany, September 15 - September 17, 2021
  12. [Joechl20a   ] A Machine Learning Approach to Approximate the Age of a Digital Image Robert Joechl, Andreas Uhl In Digital Forensics and Watermarking: 19th International Workshop, IWDW 2020, Melbourne, VIC, Australia, November 25--27, 2020, Revised Selected Papers, pp. 181-195, Springer LNCS, 12617, Springer International Publishing, 2021
  13. [Rieger21a  ] Security Assessment of Partially Encrypted Visual Data: Iris Recognition on Protected Samples M. Rieger, J. Hämmerle-Uhl, A. Uhl In 2021 IEEE International Conference on Image Processing (ICIP'21), pp. 3008-3012, Anchorage, AK, USA, September 19 - September 22, 2021
  14. [Hofbauer21a     ] Highly Efficient Protection of Biometric Face Samples with Selective JPEG2000 Encryption Heinz Hofbauer, Yoanna Martínez-Díaz, Simon Kirchgasser, Heydi Méndez-Vázquez, Andreas Uhl In Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '21, pp. 5, 2021
  15. [Hofbauer21b  ] Low Quality and Recognition of Image Content Heinz Hofbauer, Florent Autrusseau, Andreas Uhl IEEE Transactions on Multimedia 24, pp. 16, 2021
  16. [Lugstein21a  ] PRNU-based Deepfake Detection Florian Lugstein, Simon Baier, Gregor Bachinger, Andreas Uhl In Proceedings of the 2021 ACM Workshop on Information Hiding and Multimedia Security (IH&MMSec '21), pp. 7-12, New York, NY, USA, Association for Computing Machinery, 2021
  17. [Salman20a  ] Evaluating Counter Measures against SIFT Keypoint Forensics Muhammad Salman, Andreas Uhl In Proceedings of the Joint Austrian Computer Vision and Robotics Workshop (ACVRW'20), pp. 166-171, Graz, Austria, September 17 - September 18, 2020
  18. [Salman20b ] Countering Anti-Forensics of SIFT-Based Copy-Move Detection Muhammad Salman, Andreas Uhl In Proceedings of the 25th International Conference on Pattern Recognition (ICPR), pp. 2701-2707, 2020
  19. [Rieger20a ] Security Assessment of Partially Encrypted Visual Data: Using Iris Recognition as Generic Measure (Most Outstanding IWBF'20 Oral Presentation Award) M. Rieger, J. Hämmerle-Uhl, A. Uhl In Proceedings of the 8th International Workshop on Biometrics and Forensics (IWBF'20), pp. 1-6, Porto, Portugal, April 29 - April 30, 2020
  20. [Shekhawat20a  ] Efficient Fingervein Sample Image Encryption Sanjay Shekhawat, Heinz Hofbauer, Bernhard Prommegger, Andreas Uhl In Proceedings of the 8th International Workshop on Biometrics and Forensics (IWBF'20), pp. 1-6, Porto, Portugal, April 29 - April 30, 2020, Shortlisted for best paper award
  21. [Hofbauer20b  ] To Recognize or not to Recognize --- A Database of Encrypted Images with Subjective Recognition Ground Truth Heinz Hofbauer, Florent Autrusseau, Andreas Uhl Information Sciences 551, pp. 128-145, 2020
  22. [Debiasi19c   ] Detection of Face Morphing Attacks based on PRNU Analysis Ulrich Scherhag, Luca Debiasi, Christian Rathgeb, Christoph Busch, Andreas Uhl IEEE Transactions on Biometrics, Behavior, and Identity Science (TBIOM) 1:4, pp. 302-317, 2019
  23. [Debiasi19b   ] On the Detection of GAN-based Face Morphs using Established Morph Detectors Luca Debiasi, Naser Damer, Alexandra Moseguí Saladié, Christian Rathgeb, Ulrich Scherhag, Christoph Busch, Florian Kirchbuchner, Andreas Uhl In Proceedings of the 20th International Conference on Image Analysis and Processing (ICIAP2019), pp. 1-11, Trento, Italy, September 9 - September 13, 2019
  24. [Rieger19a  ] Selective JPEG2000 Encryption of Iris Data: Protecting Sample Data vs. Normalised Texture M. Rieger, J. Hämmerle-Uhl, A. Uhl In Proceedings of the IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP'19), pp. 2602-2606, Brighton, UK, May 12 - May 17, 2019
  25. [Debiasi19a    ] Blind Source Camera Clustering of Criminal Case Data L. Debiasi, E. Leitet, K. Norell, T. Tachos, A. Uhl In Proceedings of the 7th International Workshop on Biometrics and Forensics (IWBF'19), pp. 1-6, Cancun, Mexico, May 2 - May 3, 2019
  26. [Debiasi18c    ] PRNU Variance Analysis for Morphed Face Image Detection Luca Debiasi, Christian Rathgeb, Ulrich Scherhag, Andreas Uhl, Christoph Busch In Proceedings of the IEEE 9th International Conference on Biometrics: Theory, Applications, and Systems (BTAS2018), pp. 1-8, Los Angeles, California, USA, October 22 - October 25, 2018
  27. [Kirchgasser18a   ] Fingerprint Template Ageing Revisited - It's the Quality, Stupid ! Simon Kirchgasser, Katy Castillo-Rosado, David Estevez-Breso, Emilio Rodriguez-Hernandez, Jose Hernandez-Palancar, Andreas Uhl In Proceedings of the IEEE 9th International Conference on Biometrics: Theory, Applications, and Systems (BTAS2018), pp. 1-8, Los Angeles, California, USA, October 22 - October 25, 2018
  28. [Ribeiro18a   ] Iris Super-Resolution using CNNs: is Photo-Realism Important to Iris Recognition? Eduardo Ribeiro, Andreas Uhl, Fernando Alonso-Fernandez IET Biometrics 1:8, pp. 69-78, 2018
  29. [Soellinger18a   ] Non-reference image quality assessment and natural scene statistics to counter biometric sensor spoofing Dominik Söllinger, Pauline Trung, Andreas Uhl IET Biometrics 7:4, pp. 314-324, 2018
  30. [Preishuber18a  ] Depreciating Motivation and Empirical Security Analysis of Chaos-based Image and Video Encryption Mario Preishuber, Thomas Hütter, Stefan Katzenbeisser, Andreas Uhl IEEE Transactions on Information Forensics and Security 13:9, pp. 2137-2150, 2018
  31. [Rathgeb17a   ] Methods for Accuracy-preserving Acceleration of Large-Scale Comparisons in CPU-based Iris Recognition Systems Christian Rathgeb, Nicolas Buchmann, Heinz Hofbauer, Harald Baier, Andreas Uhl, Christoph Busch IET Biometrics 7:4, pp. 356-364, 2018
  32. [Hofbauer18a    ] Applicability of No-Reference Visual Quality Indices for Visual Security Assessment Heinz Hofbauer, Andreas Uhl In Proceedings of the 6th ACM Workshop on Information Hiding and Multimedia Security (IH&MMSec 2018), pp. 139-144, 2018
  33. [Kauba18b   ] Robustness of Finger-Vein Recognition Christof Kauba, Andreas Uhl In Martin Drahanský, editor, Hand-Based Biometrics: Methods and technology, pp. 193-216, London, UK, IET, 2018
  34. [Debiasi18a    ] PRNU-based Detection of Morphed Face Images L. Debiasi, U. Scherhag, C. Rathgeb, A. Uhl, C. Busch In Proceedings of the 6th International Workshop on Biometrics and Forensics (IWBF'18), pp. 1-7, Sassari, Italy, June 7 - June 8, 2018
  35. [Rieger18a   ] Efficient Iris Sample Data Protection using Selective JPEG2000 Encryption of Normalised Texture M. Rieger, J. Hämmerle-Uhl, A. Uhl In Proceedings of the 6th International Workshop on Biometrics and Forensics (IWBF'18), pp. 1-7, Sassari, Italy, June 7 - June 8, 2018
  36. [Hofbauer18c   ] To See or Not To See: Determining the Recognition Threshold of Encrypted Images Heinz Hofbauer, Florent Autrusseau, Andreas Uhl In Proceedings of 7th European Workshop on Visual Information Processing (EUVIP'18), pp. 6, 2018
  37. [Kauba17a    ] Identifying the Origin of Iris Images Based on Fusion of Local Image Descriptors and PRNU Based Techniques Christof Kauba, Luca Debiasi, Andreas Uhl In Proceedings of the IAPR/IEEE International Joint Conference on Biometrics (IJCB'17), pp. 294-301, Denver, Colorado, USA, October 1 - October 4, 2017
  38. [Debiasi17a   ] PRNU Enhancement Effects on Biometric Source Sensor Attribution Luca Debiasi, Andreas Uhl IET Biometrics 4:6, pp. 256-265, 2017
  39. [Debiasi17b   ] Identifying Iris Sensors from Iris Images Luca Debiasi, Christof Kauba, Andreas Uhl In Christian Rathgeb, Christoph Busch, editors, Iris and Periocular Biometric Recognition, pp. 359-382, London, UK, IET, 2017
  40. [Bhogal17a  ] Non-reference image quality assessment for biometric presentation attack detection (Best Reviewed Papers Session) Amrit Pal Singh Bhogal, Dominik Söllinger, Pauline Trung, Andreas Uhl In Proceedings of the 5th International Workshop on Biometrics and Forensics (IWBF'17), pp. 1-6, Coventry, United Kindom, April 4 - 5, 2017
  41. [Bhogal17b  ] Non-reference image quality assessment for fingervein presentation attack detection Amrit Pal Singh Bhogal, Dominik Söllinger, Pauline Trung, Jutta Hämmerle-Uhl, Andreas Uhl In Proceedings of 20th Scandinavian Conference on Image Analysis (SCIA'17), pp. 184-196, Springer Lecture Notes on Computer Science, 10269, 2017
  42. [Draschl17a  ] Sensor Dependency in Efficient Fingerprint Image Protection using Selective JPEG2000 Encryption Martin Draschl, Jutta Hämmerle-Uhl, Andreas Uhl In Proceedings of the 5th International Workshop on Biometrics and Forensics (IWBF'17), pp. 1-6, Coventry, United Kindom, April 4 - 5, 2017
  43. [Ribeiro17a  ] Exploring Deep Learning Image Super-Resolution for Iris Recognition Eduardo Ribeiro, Andreas Uhl, Fernando Alonso-Fernandez, Reuben A. Farrugia In Proc. of the 25th European Signal Processing Conference (EUSIPCO 2017), Kos Island, Greece, August 28 - September 2, 20172017
  44. [Ribeiro17b  ] Exploring Texture Transfer Learning via Convolutional Neural Networks for Iris Super Resolution Eduardo Ribeiro, Andreas Uhl In Arslan Brömme, Christoph Busch, Christian Rathgeb, Andreas Uhl, editors, Proceedings of the 2017 International Conference of the Biometrics Special Interest Group (BIOSIG'17), Darmstadt, Germany 2017, LNI, GI / IEEE, 2017
  45. [Kirchgasser17c   ] Fingerprint Template Ageing vs. Template Changes Revisited Simon Kirchgasser, Andreas Uhl In Proceedings of the International Conference of the Biometrics Special Interest Group (BIOSIG'17), pp. 1-12, Darmstadt, Germany, September 20 - 22, 2017
  46. [Bergmueller17a  ] Recompression effects in iris recognition Thomas Bergmüller, Eleftherios Christopoulos, Kevin Fehrenbach, Martin Schnöll, Andreas Uhl Image and Vision Computing (Special Section on the Best of Biometrics 2015) 58, pp. 142-157, 2017
  47. [Drozdowski17a  ] Towards Pre-alignment of Near-infrared Iris Images P. Drozdowski, C. Rathgeb, H. Hofbauer, J. Wagner, A. Uhl, C. Busch In Proceedings of the IAPR/IEEE International Joint Conference on Biometrics (IJCB'17), pp. 8, 2017
  48. [Kauba16f   ] Fingerprint Recognition under the Influence of Sensor Ageing Christof Kauba, Andreas Uhl IET Biometrics 4:6, pp. 245-255, 2016
  49. [Aslan16a  ] Design and Exploration of Mid-air Authentication Gestures I. Aslan, A. Uhl, A. Meschtscherjakov, M. Tscheligi ACM Transactions on Interactive Intelligent Systems 6:23, pp. 1-22, 2016
  50. [Unterweger16a ] Bit-Stream-Based Scrambling for Regions of Interest in H.264/AVC Videos With Drift Reduction Andreas Unterweger, Jan De Cock, Andreas Uhl In Proceedings of the sixth International Conference on Image Processing Theory, Tools and Applications (IPTA'16), pp. paper P17, 6 pages, 2016
  51. [Kauba16c   ] PRNU-Based Image Alignment for Defective Pixel Detection Christof Kauba, Andreas Uhl In Proceedings of the IEEE Eighth International Conference on Biometrics: Theory, Applications, and Systems (BTAS2016), pp. 1-6, Niagara Falls, Buffalo, New York, USA, September 6 - September 9, 2016
  52. [Kauba16b   ] Image Segmentation Based Visual Security Evaluation Christof Kauba, Stefan Mayer, Andreas Uhl In Proceedings of the 4th ACM Workshop on Information Hiding and Multimedia Security (IH&MMSec 2016), pp. 1-6, Vigo, Spain, June 20 - June 23, 2016
  53. [Draschl16a  ] Efficient Fingerprint Image Protection Principles using Selective JPEG2000 Encryption Martin Draschl, Jutta Hämmerle-Uhl, Andreas Uhl In Proceedings of the 1st Workshop on Sensing, Processing and Learning for Intelligent Machines (SPLINE 2016), pp. 1-6, Aalborg, Denmark, July 6 - July 8, 2016
  54. [Draschl16b  ] Assessment of Efficient Fingerprint Image Protection Principles using different Types of AFIS Martin Draschl, Jutta Hämmerle-Uhl, Andreas Uhl In Proceedings of the 18th International Conference on Information and Communications Security (ICICS'16), pp. 241-253, Singapore, Springer LNCS, 9977, November 29th - December 2nd, 2016
  55. [Huetter16a  ] Weaknesses in Security Considerations Related to Chaos-Based Image Encryption Thomas Hütter, Mario Preishuber, Jutta Hämmerle-Uhl, Andreas Uhl In Proceedings of the 18th International Conference on Information and Communications Security (ICICS'16), pp. 278-291, Singapore, Springer LNCS, 9977, November 29th - December 2nd, 2016
  56. [Piciucco16a  ] Cancelable Biometrics for Finger Vein Recognition Emanuela Piciucco, Emanuele Maiorana, Christof Kauba, Andreas Uhl, Patrizio Campisi In Proceedings of the 1st Workshop on Sensing, Processing and Learning for Intelligent Machines (SPLINE 2016), pp. 1-6, Aalborg, Denmark, July 6 - July 8, 2016
  57. [Kauba16a   ] Fingerprint Recognition under the Influence of Sensor Ageing Christof Kauba, Andreas Uhl In Proceedings of the 4th International Workshop on Biometrics and Forensics (IWBF'16), pp. 1-6, Limassol, Cyprus, March 3 - March 4, 2016
  58. [Hofbauer16a   ] Experimental Analysis Regarding the Influence of Iris Segmentation on the Recognition Rate Heinz Hofbauer, Fernando Alonso-Fernandez, Josef Bigun, Andreas Uhl IET Biometrics 5:3, pp. 200-211, 2016
  59. [Rathgeb16a  ] Design Decisions for an Iris Recognition SDK Christian Rathgeb, Andreas Uhl, Peter Wild, Heinz Hofbauer In Kevin Bowyer, Mark J. Burge, editors, Handbook of Iris Recognition, Advances in Computer Vision and Pattern Recognition, Springer, 2016
  60. [Debiasi16a    ] Comparison of PRNU Enhancement Techniques to generate PRNU Fingerprints for Biometric Source Sensor Attribution L. Debiasi, A. Uhl In Proceedings of the 4th International Workshop on Biometrics and Forensics (IWBF'16), pp. 1-6, Limassol, Cyprus, March 3 - March 4, 2016
  61. [Hofbauer16b    ] Calculating a boundary for the Significance from the Equal-Error Rate Heinz Hofbauer, Andreas Uhl In Proceedings of the 9th IAPR/IEEE International Conference on Biometrics (ICB'16), pp. 1-4, 2016
  62. [Rathgeb16b  ] TripleA: Accelerated Accuracy-preserving Alignment for Iris-Codes Christian Rathgeb, Heinz Hofbauer, Andreas Uhl, Christoph Busch In Proceedings of the 9th IAPR/IEEE International Conference on Biometrics (ICB'16), pp. 1-8, 2016
  63. [Ablinger16a ] Compression Standards in Fingervein Recognition Victoria Ablinger, Cornelia Zenz, Jutta Hämmerle-Uhl, Andreas Uhl In Proceedings of the 9th IAPR/IEEE International Conference on Biometrics (ICB'16), pp. 1-7, 2016
  64. [Hofbauer16c    ] Identifying Deficits of Visual Security Metrics for Images Heinz Hofbauer, Andreas Uhl Signal Processing: Image Communication 46, pp. 60-75, 2016
  65. [Hofbauer16d    ] Isolating Iris Template Ageing in a Semi-controlled Environment Heinz Hofbauer, Inmaculada Tomeo-Reyes, Andreas Uhl In Proceedings of the International Conference of the Biometrics Special Interest Group (BIOSIG'16), pp. 8, Darmstadt, Germany, September 21 - 23, 2016
  66. [Kocher16a ] Empirical Evaluation of LBP-Extension Features for Finger Vein Spoofing Detection Daniel Kocher, Stefan Schwarz, Andreas Uhl In Proceedings of the International Conference of the Biometrics Special Interest Group (BIOSIG'16), pp. 8, Darmstadt, Germany, September 21 - 23, 2016
  67. [Kocher16b ] LBP Extensions used in Finger Vein Spoofing Detection Daniel Kocher, Stefan Schwarz, Andreas Uhl Department of Computer Sciences, University of Salzburg, Austriahttp://www.cosy.sbg.ac.at/tr, Technical Report 2016-04, 2016
  68. [Wild17a  ] Robust Iris Image Segmentation Peter Wild, Heinz Hofbauer, James Ferryman, Andreas Uhl In Christian Rathgeb, Christoph Busch, editors, Iris and Periocular Biometrics, pp. 57-83, London, UK, IET, 2016
  69. [Bergmueller15a  ] Recompression effects in iris segmentation Thomas Bergmüller, Eleftherios Christopoulos, Martin Schnöll, Andreas Uhl In Proceedings of the 8th IAPR/IEEE International Conference on Biometrics (ICB'15), pp. 1-8, Phuket, Thailand, May 19 - May 22, 2015
  70. [Kauba15a   ] Sensor Ageing Impact on Finger-Vein Recognition Christof Kauba, Andreas Uhl In Proceedings of the 8th IAPR/IEEE International Conference on Biometrics (ICB'15), pp. 1-8, Phuket, Thailand, May 19 - May 22, 2015
  71. [Debiasi15c  ] A Forensic Analysis of the CASIA-Iris V4 Database Luca Debiasi Master thesis, Department of Computer Sciences, University of Salzburg, Austria, July 2015
  72. [Kauba15c  ] Impact of Sensor Ageing on Finger-Image based Biometric Recognition Systems Christof Kauba Master thesis, Department of Computer Sciences, University of Salzburg, Austria, January 2015
  73. [Kauba15d  ] Fingerprint Recognition under the Influence of Sensor Ageing Christof Kauba, Andreas Uhl Department of Computer Sciences, University of Salzburg, Austriahttp://www.cosy.sbg.ac.at/tr, Technical Report 2015-10, 2015
  74. [Elmer15a  ] Exploring Compression Impact on Face Detection Using Haar-like Features Peter Elmer, Artur Lupp, Stefan Sprenger, Rene Thaler, Andreas Uhl In Proceedings of the 19th Scandinavian Conference on Image Analysis (SCIA'15), pp. 53-64, Springer LNCS, 9127, 2015
  75. [Wild15b   ] Impact of (segmentation) quality on long vs. short-timespan assessments in iris recognition performance Peter Wild, James Ferryman, Andreas Uhl IET Biometrics 4:4, pp. 227-235, IET, 2015
  76. [Kauba15b   ] Robustness Evaluation of Hand Vein Recognition Systems Christof Kauba, Andreas Uhl In Proceedings of the International Conference of the Biometrics Special Interest Group (BIOSIG'15), pp. 1-8, Darmstadt, Germany, September 9 - 11, 2015
  77. [Debiasi15b    ] Blind Biometric Source Sensor Recognition Using Advanced PRNU Fingerprints L. Debiasi, A. Uhl In Proceedings of the 2015 European Signal Processing Conference (EUSIPCO'15), pp. 779-783, Nice, France, 2015
  78. [Debiasi15a    ] Techniques for a Forensic Analysis of the CASIA-Iris V4 Database L. Debiasi, A. Uhl In Proceedings of the 3rd International Workshop on Biometrics and Forensics (IWBF'15), pp. 1-8, Gjovik, Norway, 2015
  79. [Haemmerle14b ] Recognition impact of JPEG2000 Part 2 wavelet packet subband structures in IREX K3 iris Image Compression J. Hämmerle-Uhl, E. Tillian, A. Uhl International Jounal of Information and Electronics Engineering (Proceedings of ICSIA'14) 5:1, pp. 51-54, 2015
  80. [Haemmerle15a ] Size-reduction strategies for iris codes J. Hämmerle-Uhl, G. Penn, G. Pötzelsberger, A. Uhl International Jounal of Computer, Control, Quantum and Information Engineering (Proceedings of International Conference on Image Processing, Analysis and Computer Vision ICIPAVC'15) 9:1, pp. 290-293, 2015
  81. [Unterweger15a   ] Building a Post-Compression Region-of-Interest Encryption Framework for Existing Video Surveillance Systems -- Challenges, obstacles and practical concerns Andreas Unterweger, Kevin Van Ryckegem, Dominik Engel, Andreas Uhl Multimedia Systems 22:5, pp. 617-639, Springer, 2015
  82. [Unterweger15b  ] Bit-Stream-Based Encryption for Regions of Interest in H.264/AVC Videos With Drift Minimization Andreas Unterweger, Jan De Cock, Andreas Uhl In 2015 IEEE International Conference on Multimedia and Expo (ICME)IEEE, 2015, submitted
  83. [Hofbauer15a  ] Encrypting Only AC Coefficient Signs considered Harmful Heinz Hofbauer, Andreas Unterweger, Andreas Uhl In Proceedings of the IEEE International Conference on Image Processing (ICIP'15)2015
  84. [Unterweger14b  ] Slice groups for post-compression region of interest encryption in H.264/AVC and its scalable extension Andreas Unterweger, Andreas Uhl Signal Processing: Image Communication 29:10, pp. 1158-1170, Elsevier, November 2014
  85. [Hofbauer14a  ] Transparent Encryption for HEVC Using Bit-Stream-Based Selective Coefficient Sign Encryption Heinz Hofbauer, Andreas Uhl, Andreas Unterweger In 2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), pp. 1986-1990, Florence, Italy, IEEE, May 2014
  86. [Unterweger14a  ] Slice Groups for Post-Compression Region of Interest Encryption in SVC Andreas Unterweger, Andreas Uhl In IH&MMSec'14: Proceedings of the 2014 ACM Information Hiding and Multimedia Security Workshop, pp. 15-22, Salzburg, Austria, ACM, June 2014
  87. [Gschwandtner14a  ] Speeding Up Object Detection -- Fast Resizing in the Integral Image Domain Michael Gschwandtner, Andreas Uhl, Andreas Unterweger In VISAPP 2014 -- Proceedings of the 9th International Conference on Computer Vision Theory and Applications, pp. 64-72, Lisbon, Portugal, 1, SciTePress, January 2014
  88. [Haemmerle14c ] General Purpose Bivariate Quality-Metrics for Fingerprint-Image Assessment Revisited J. Hämmerle-Uhl, M. Pober, A. Uhl In Proceedings of the IEEE International Conference on Image Processing (ICIP'14)Paris, France, October 27-30, 2014
  89. [Aslan14a ] Mid-air Authentication Gestures: An Exploration of Authentication Based on Palm and Finger Motions (Nominee for Outstanding Paper Award) I. Aslan, A. Uhl, A. Meschtscherjakov, M. Tscheligi In Proceedings of the 16th International Conference on Multimodal Interaction, pp. 311-318, 2014
  90. [Katzenbeisser14a ] Proceedings of the 2nd ACM Workshop on Information Hiding and Multimedia Security Stefan Katzenbeisser, Roland Kwitt, Alessandro Piva, Andreas Uhl, Andreas Unterweger ACM New York, NY, USA, 2014
  91. [Debiasi14a    ] Generation of iris sensor PRNU fingerprints from uncorrelated data L. Debiasi, Z. Sun, A. Uhl In Proceedings of the 2nd International Workshop on Biometrics and Forensics (IWBF'14), pp. 1-6, Valletta, Malta, 2014
  92. [Debiasi14b    ] Impact of sensor ageing on iris recognition T. Bergmüller, L. Debiasi, Z. Sun, A. Uhl In Proceedings of the IAPR/IEEE International Joint Conference on Biometrics (IJCB'14), pp. 1-8, Clearwater, Florida, USA, 2014
  93. [DeCock14a   ] An Industry-Level Blu-ray Watermarking Framework Jan De Cock, Heinz Hofbauer, Thomas Stütz, Andreas Uhl, Andreas Unterweger Multimedia Tools and Applications 74:18, pp. 8079–8101, Springer US, 2014
  94. [Stuetz14a ] Non-blind structure-preserving substitution watermarking of H.264/CAVLC inter-frames Thomas Stütz, Florent Autrusseau, Andreas Uhl IEEE Transactions on Multimedia 16:5, pp. 1337-1349, 2014
  95. [Engel13a  ] Region of Interest Signalling for Encrypted JPEG Images Dominik Engel, Andreas Uhl, Andreas Unterweger In IH&MMSec'13: Proceedings of the 1st ACM Workshop on Information Hiding and Multimedia Security, pp. 165-174, ACM, June 2013
  96. [Stuetz13a ] Inter-Frame H.264/CAVLC Structure-Preserving Substitution Watermarking Thomas Stütz, Florent Autrusseau, Andreas Uhl Deptartment of Computer Sciences, University of SalzburgSalzburg, Austria, Technical Report 2013-02, 2013, Available at http://www.cosy.sbg.ac.at/tr.
  97. [Auer13a  ] Bitstream-Based JPEG Encryption in Real-time Stefan Auer, Alexander Bliem, Dominik Engel, Andreas Uhl, Andreas Unterweger International Journal of Digital Crime and Forensics 5:3, pp. 1-14, 2013
  98. [Haemmerle12b  ] Privacy Enhancing Technologies in Video Surveillance applied to JPEG2000 Codestreams Jutta Hämmerle-Uhl, Rudolf Schraml, Andreas Uhl In Proceedings of the IEEE International Workshop on Multimedia Signal Processing (MMSP'12), pp. 95-100, Sep. 2012
  99. [Unterweger12a  ] Length-preserving Bit-stream-based JPEG Encryption Andreas Unterweger, Andreas Uhl In MM&Sec'12: Proceedings of the 14th ACM Multimedia and Security Workshop, pp. 85-89, ACM, Sep. 2012
  100. [Engel12a ] Assessing JPEG2000 Encryption with Key-Dependent Wavelet Packets Dominik Engel, Thomas Stütz, Andreas Uhl EURASIP Journal on Information Security 2012:2, 2012
  101. [DeDecker11a ] Communication and Multimedia Security (Proceedings of the 12th IFIP CMS 2011) B. DeDecker, J. Lapon, V. Naessens, A. Uhl Ghent, Belgium, Lecture Notes on Computer Science, 7025, Springer-Verlag, Oct. 2011
  102. [Stuetz10d  ] Subjective and Objective Quality Assessment of Transparently Encrypted JPEG2000 Images Thomas Stütz, Vinod Pankajakshan, Florent Autrusseau, Andreas Uhl, Heinz Hofbauer In Proceedings of the ACM Multimedia and Security Workshop (MMSEC '10), pp. 247-252, Rome, Italy, ACM, September 9 - 10, 2010
  103. [Stuetz10c  ] (In)secure Multimedia Transmission over RTP Thomas Stütz, Andreas Uhl In Proceedings of the 18th European Signal Processing Conference, EUSIPCO '10Aarlborg, Danmark, EURASIP, August 23 - 27, 2010
  104. [Kwitt09d ] Blind Detection of Additive Spread-Spectrum Watermarking in the Dual-Tree Complex Wavelet Domain R. Kwitt, P. Meerwald, A. Uhl International Journal of Digital Crime and Forensics 2:2, pp. 34-46, IGI Global, April 2010
  105. [Meerwald09e  ] Watermarking of raw digital images in camera firmware and detection Peter Meerwald, Andreas Uhl IPSJ Transactions on Computer Vision and Applications 2, pp. 16-24, IPSJ, March 2010
  106. [Kwitt09e  ] Color-Image Watermarking using Multivariate Power-Exponential Distribution R. Kwitt, P. Meerwald, A. Uhl In Proceedings of the IEEE International Conference on Image Processing (ICIP '09), pp. 4245-4248, Cairo, Egypt, November 7 - 11, 2009
  107. [Carini09a ] Proceedings of the 6th International Symposium on Image and Signal Processing and Analysis (ISPA'09) A. Carini, S. Loncaric, A. Uhl, P. Zinterhof Salzburg, Austria, Sep. 2009
  108. [Meerwald09c  ] Targeted Attacks on Quantization-based Watermarking Schemes Peter Meerwald, Christian Koidl, Andreas Uhl In Proceedings of the 6th International Symposium on Image and Signal Processing and Analysis, ISPA '09, pp. 465-470, Salzburg, Austria, September 16 - 18, 2009
  109. [Meerwald09d  ] Additive spread-spectrum watermark detection in demosaicked images Peter Meerwald, Andreas Uhl In Proceedings of the ACM Multimedia and Security Workshop, MMSEC '09, pp. 25-32, Princeton, NJ, USA, ACM, September 7 - 8, 2009
  110. [Hofbauer09a  ] Selective Encryption of the MC EZBC Bitstream for DRM Scenarios Heinz Hofbauer, Andreas Uhl In Proceedings of the 11th ACM Workshop on Multimedia and Security, pp. 161-170, Princeton, New Jersey, USA, ACM, September 7 - 8, 2008, 2009
  111. [Meerwald09b  ] Attack on 'Watermarking Method Based on Significant Difference of Wavelet Coefficient Quantization' Peter Meerwald, Christian Koidl, Andreas Uhl IEEE Transactions on Multimedia 11:5, pp. 1037-1041, IEEE, Aug. 2009
  112. [Kwitt09b  ] Efficient Detection of Additive Watermarking in the DWT-Domain R. Kwitt, P. Meerwald, A. Uhl In Proceedings of the 17th European Signal Processing Conference (EUSIPCO '09), pp. 2072-2076, Glasgow, UK, August 24 - 28, 2009
  113. [Koidl09a  ] Multiple Blind Watermarking in the DRM-Context Christian Koidl Master thesis, Department of Computer Sciences, University of Salzburg, Austria, Aug. 2009
  114. [Kwitt09a  ] Blind DT-CWT Domain Additive Spread-Spectrum Watermark Detection R. Kwitt, P. Meerwald, A. Uhl In Proceedings of the 16th International Conference on Digital Signal Processing (DSP '09)Santorini, Greece, July 5 - 7, 2009
  115. [Engel09b  ] Evaluation of JPEG2000 Hashing for Efficient Authentication Dominik Engel, Thomas Stütz, Andreas Uhl In Proceedings of International Conference on Multimedia & Expo (ICME '09)New York City, USA, IEEE, June 2009
  116. [Gschwandtner09a ] Efficient protection and access control of 3D geometry data Michael Gschwandtner Master thesis, Department of Scientific Computing, University of Salzburg, Austria, March 2009
  117. [Stuetz09a  ] On JPEG2000 Error Concealment Attacks Thomas Stütz, Andreas Uhl In Advantages in Image and Video Technology: Proceedings of the 3rd Pacific-Rim Symposium on Image and Video Technology, PSIVT '09, pp. 851-861, Tokyo, Japan, Lecture Notes in Computer Science, Springer, January 13 - 16, 2009
  118. [Meerwald09a  ] Watermarking of raw digital images in camera firmware: embedding and detection Peter Meerwald, Andreas Uhl In Advances in Image and Video Technology: Proceedings of the 3rd Pacific-Rim Symposium on Image and Video Technology, PSIVT '09, pp. 340-348, Tokyo, Japan, Lecture Notes in Computer Science, 5414, Springer, January 13 - 16, 2009
  119. [Engel09a   ] A survey on JPEG2000 encryption Dominik Engel, Thomas Stütz, Andreas Uhl Multimedia Systems 15:4, pp. 243-270, Springer-Verlag, 2009
  120. [Gschwandtner09b ] Protected Progressive Meshes Michael Gschwandtner, Andreas Uhl In Advances in Visual Computing, pp. 35-48, Lecture Notes in Computer Science, 5876, Springer, 2009
  121. [Stuetz08a  ] Format-Compliant Encryption of H.264/AVC and SVC Thomas Stütz, Andreas Uhl In Proceedings of the Eighth IEEE International Symposium on Multimedia (ISM'08), pp. 446-451, Berkeley, CA, USA, IEEE Computer Society, Dec. 2008
  122. [Meerwald08c  ] Scalability evaluation of blind spread-spectrum image watermarking Peter Meerwald, Andreas Uhl In Proceedings of the 7th International Workshop on Digital Watermarking, IWDW '08, pp. 61-75, Busan, South Korea, Lecture Notes in Computer Science, 5450, Springer, November 10 - 12, 2008
  123. [Kwitt08e  ] A Lightweight Rao-Cauchy Detector for Additive Watermarking in the DWT-Domain R. Kwitt, P. Meerwald, A. Uhl In Proceedings of the ACM Multimedia and Security Workshop (MMSEC '08), pp. 33-41, Oxford, UK, September 22 - 23, 2008
  124. [Haemmerle08b ] Attack against a JPEG2000-based robust hash for content identification Jutta Hämmerle-Uhl, Gerold Laimer, Andreas Uhl In J.J. Villanueva, editor, Proceedings of the 8th IASTED International Conference on Visualization, Imaging, and Image Processing, VIIP '08, pp. 156-160, Palma de Mallorca, Spain, September 1 - 3, 2008
  125. [Engel08a  ] An Analysis of Lightweight Encryption Schemes for Fingerprint Images Dominik Engel, Elias Pschernig, Andreas Uhl IEEE Transactions on Information Forensics and Security 3:2, pp. 173-182, IEEE, June 2008
  126. [Engel08b  ] Media Encryption for Still Visual Data -- An Analysis of Selected Techniques for Natural Images and Fingerprint Data in the Spatial and Wavelet Domain Dominik Engel PhD thesis, Department of Computer Sciences, University of Salzburg, Austria, June 2008
  127. [Haemmerle08a  ] Multiple Re-Watermarking using varying wavelet packets Jutta Hämmerle-Uhl, Michael Liedlgruber, Andreas Uhl, Hartmut Wernisch In Proceedings of the 2008 IEEE Conference on Multimedia & Expo, ICME '08, pp. 213-216, Hannover, Germany, June 23 - 26, 2008
  128. [Meerwald08b  ] Blind motion-compensated video watermarking Peter Meerwald, Andreas Uhl In Proceedings of the 2008 IEEE Conference on Multimedia & Expo, ICME '08, pp. 357-360, Hannover, Germany, June 23 - 26, 2008
  129. [Gschwandtner08a ] Toward DRM for 3D geometry data Michael Gschwandtner, Andreas Uhl In Edward J. Delp III, Ping Wah Wong, Jana Dittmann, Nasir D. Memon, editors, Proceedings of SPIE, Security, Forensics, Steganography, and Watermarking of Multimedia Contents X, pp. 68190V ff., San Jose, CA, USA, 6819, SPIE, January 27 - 31, 2008
  130. [Meerwald08a  ] Toward robust watermarking of scalable video Peter Meerwald, Andreas Uhl In Proceedings of SPIE, Security, Forensics, Steganography, and Watermarking of Multimedia Contents X, pp. 68190J ff., San Jose, CA, USA, 6819, January 27 - 31, 2008
  131. [Engel07g ] Efficient Transparent JPEG2000 Encryption Dominik Engel, Thomas Stütz, Andreas Uhl In Chang-Tsun Li, editor, Multimedia Forensics and Security, pp. 336-359, Hershey, PA, USA, IGI Global, 2008
  132. [Kutil08a  ] Methods for the Anisotropic Wavelet Packet Transform Rade Kutil, Dominik Engel Applied and Computational Harmonic Analysis 25:3, pp. 295-314, 2008
  133. [Laimer08a ] Key Dependent JPEG2000-Based Robust Hashing for Secure Image Authentication Gerold Laimer, Andreas Uhl EURASIP Journal on Information Security Article ID 895174, pp. doi:10.1155/2008/895174, 19 pages, 2008
  134. [Engel07f  ] Efficient Transparent JPEG2000 Encryption With Format-Compliant Header Protection Dominik Engel, Thomas Stütz, Andreas Uhl In Proceedings of IEEE International Conference on Signal Processing and Communications, ICSPC '07, pp. 1067-1070, Dubai, UAE, IEEE, Nov. 2007
  135. [Leimhofer07a ] Partial Encryption Schemes for Matching Pursuit Gerald Leimhofer, Andreas Uhl In Proceedings of IEEE International Conference on Signal Processing and Communications, ICSPC '07, pp. 1487-1490, Dubai, UAE, Nov. 2007
  136. [Engel07d  ] An Attack Against Image-based Selective Bitplane Encryption Dominik Engel, Andreas Uhl In Proceedings of the IEEE International Conference on Image Processing, ICIP '07, pp. 141-144, San Antonio, TX, USA, II, IEEE, Sep. 2007
  137. [Engel07e   ] Format-Compliant JPEG2000 Encryption With Combined Packet Header and Packet Body Protection Dominik Engel, Thomas Stütz, Andreas Uhl In Proceedings of ACM Multimedia and Security Workshop, MM-SEC '07, pp. 87-95, New York, NY, USA, ACM Press, Sep. 2007
  138. [Stuetz07b   ] On Efficient Transparent JPEG2000 Encryption Thomas Stütz, Andreas Uhl In Proceedings of ACM Multimedia and Security Workshop, MM-SEC '07, pp. 97-108, New York, NY, USA, ACM, Sep. 2007
  139. [Engel07a  ] An Evaluation of Lightweight JPEG2000 Encryption with Anisotropic Wavelet Packets Dominik Engel, Andreas Uhl In Edward J. Delp, Ping W. Wong, editors, Security, Steganography, and Watermarking of Multimedia Contents IX, pp. 65051S1-65051S10, San Jose, CA, USA, Proceedings of SPIE, SPIE, Jan. 2007
  140. [Mark07a ] Experimental study on watermark interference in multiple re-watermarking Daniel Mark, Andreas Uhl, Hartmut Wernisch In Edward J. Delp, Ping W. Wong, editors, Security, Steganography, and Watermarking of Multimedia Contents IX, pp. 65050N-1-65050N-9, San Jose, CA, USA, Proceedings of SPIE, 6505, SPIE, Jan. 2007
  141. [Engel07b   ] Format-compliant JPEG2000 Encryption in JPSEC: Security, Applicability and the Impact of Compression Parameters Dominik Engel, Thomas Stütz, Andreas Uhl EURASIP Journal on Information Security 2007:Article ID 94565, pp. 20 pages, Hindawi Publishing Corporation, 2007
  142. [Gschwandtner07a  ] Transmission error and compression robustness of 2D Chaotic Map image encryption schemes Michael Gschwandtner, Andreas Uhl, Peter Wild EURASIP Journal on Information Security 2007:Article ID 48179, pp. doi:10.1155/2007/48179, 16 pages, 2007
  143. [Stuetz07a ] Evaluation of compression codecs and selective encryption schemes for GVid Thomas Stütz, Andreas Uhl In J. Volkert, T. Fahringer, D. Kranzlmüller, W. Schreiner, editors, Proceedings of the 2nd Austrian Grid Symposium, pp. 28-41, Innsbruck, Austria, books@ocg.at, 221, Austrian Computer Society, 2007
  144. [Stuetz06c   ] On Format-Compliant Iterative Encryption of JPEG2000 Thomas Stütz, Andreas Uhl In Proceedings of the Eighth IEEE International Symposium on Multimedia (ISM'06), pp. 985-990, San Diego, CA, USA, IEEE Computer Society, Dec. 2006
  145. [Gschwandtner06a  ] Compression of encrypted Visual Data Michael Gschwandtner, Andreas Uhl, Peter Wild In H. Leitold, E. Markatos, editors, Communications and Multimedia Security, Proceedings of the 10th IFIP International CMS 2006 Conference, pp. 141-150, Lecture Notes on Computer Science, 4237, Springer Verlag, Oct. 2006
  146. [Hofbauer06c  ] Selective Encryption for hierarchical MPEG Heinz Hofbauer, Thomas Stütz, Andreas Uhl In H. Leitold, E. Markatos, editors, Communications and Multimedia Security, Proceedings of the 10th IFIP International CMS 2006 Conference, pp. 151-160, Lecture Notes on Computer Science, 4237, Springer Verlag, Oct. 2006
  147. [Engel06d  ] A Symbolic Transform Attack on Lightweight Encryption Based on Wavelet Filter Parameterization Dominik Engel, Rade Kutil, Andreas Uhl In Proceedings of ACM Multimedia and Security Workshop, MM-SEC '06, pp. 202-207, Geneva, Switzerland, Sep. 2006
  148. [Stuetz06a  ] Transparent Image Encryption using Progressive JPEG Thomas Stütz, Andreas Uhl In S.K. Katsikas, others, editors, Information Security. Proceedings of the 9th Infomation Security Conference (ISC'06), pp. 286-298, Lecture Notes on Computer Science, 4176, Springer Verlag, Sep. 2006
  149. [Engel06c  ] Lightweight JPEG2000 Encryption with Anisotropic Wavelet Packets Dominik Engel, Andreas Uhl In Proceedings of International Conference on Multimedia & Expo, ICME '06, pp. 2177-2180, Toronto, Canada, IEEE, July 2006
  150. [Engel06a  ] Secret Wavelet Packet Decompositions for JPEG2000 Lightweight Encryption Dominik Engel, Andreas Uhl In Proceedings of 31st International Conference on Acoustics, Speech, and Signal Processing, ICASSP '06, pp. 465-468, Toulouse, France, V, IEEE, May 2006
  151. [Stuetz06b  ] Securing Scalable Visual Data in a Grid Environment Thomas Stütz Master thesis, University of Salzburg, Department of Computer Sciences, March 2006
  152. [Koeckerbauer06a ] GVid - video coding and encryption for advanced Grid visualization T. Köckerbauer, M. Polak, T. Stütz, A. Uhl In J. Volkert, T. Fahringer, D. Kranzlmüller, W. Schreiner, editors, Proceedings of the 1st Austrian Grid Symposium, pp. 204-218, Schloss Hagenberg, Austria, books@ocg.at, 210, Austrian Computer Society, 2006
  153. [Kramatsch06a ] Video encryption exploiting non-standard 3D data arrangements S. Kramatsch, H. Stögner, A. Uhl In B. Enyedi, A. Reichardt, editors, Proceedings of the 13th International Conference on Systems, Signals, and Image Processing (IWSSIP 2006), pp. 49-52, Budapest, Hungary, September 21-23, 2006
  154. [Mascher06a ] Multiple Re-Watermarking Scenarios A. Mascher-Kampfer, H. Stögner, A. Uhl In B. Enyedi, A. Reichardt, editors, Proceedings of the 13th International Conference on Systems, Signals, and Image Processing (IWSSIP 2006), pp. 53-56, Budapest, Hungary, September 21-23, 2006
 
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