MASTER THESIS Video Watermarking - Computer Graphics Group ...

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In order to increase robustness against direct removal attack, the watermark should be embedded into textured areas only. Textured areas provide more non-zero coefficients in the residual than uniform areas do, thus the watermark may be hidden more safely. Moreover, less distortion would be produced. Therefore, an adaptive embedding algorithm which would adjust the weight factor per macroblock according to its complexity and spatial characteristics should be implemented. Furthermore, the distortion in inter predicted slices caused by prediction from watermarked intra slices should be compensated. Among others, complete inter prediction has to be implemented in order to accomplish this task. As soon as the inter prediction error compensation is implemented, there is only a small step left to implementation of the embedding process into inter coded slices as well. 52
Bibliography [1] Ingemar J. Cox, Joe Kilian, Tom Leighton and Talal Shamoon: A Secure, Robust Watermark for Multimedia. Proceedings of the First International Workshop on Information Hiding, 1996. [2] Frank Hartung and Bernd Girod: Watermarking of Uncompressed and Compressed Video. Signal Processing, 1998. [3] V. Cappellini, F. Bartolini,R. Caldelli, A. De Rosa, A. Piva and M. Barni: Robust Frame-based Watermarking for Digital Video. Proceedings of the 12th International Workshop on Database and Expert Systems Applications, 2001. [4] Hong-mei Liu, Ji-wu Huang and Zi-mei Xiao: An Adaptive Video Watermarking Algorithm. International Conference on Multimedia and Expo, 2001. [5] B. Zhu, M. D. Swanson and A. H. Tewk: Multiresolution Scene-based Video Watermarking Using Perceptual Models. IEEE Journal on Selected Areas in Communications, 1998. [6] Stefan Thiemert, Thomas Vogel, Jana Dittmann and Martin Steinebach: A High-Capacity Block Based Video Watermark. Proceedings of the 30th EUROMICRO Conference, 2004. [7] Jun Zhang, Jiegu Li and Ling Zhang: Video Watermark Technique in Motion Vector. Proceedings of the 14th Brazilian Symposium on Computer Graphics and Image Processing, 2001. [8] Frank Hartung, Jonathan K. Su and Bernd Girod: Spread Spectrum Watermarking: Malicious Attacks and Counterattacks. Security and Watermarking of Multimedia Contents, 1999. [9] ITU-T Recommendation H.264: Advanced video coding for generic audiovisual services, 2005. [10] Oskar Flordal, Di Wu and Dake Liu: Accelerating CABAC Encoding for Multi-standard Media with Configurability. Parallel and Distributed Processing Symposium, 2006. [11] ITU-T Recommendation H.264.1: Conformance specification for H.264 advanced video coding, 2005. 53
Page 1 and 2: Charles University in Prague Facult
Page 3 and 4: Table of Contents Abstract 5 1 Intr
Page 5 and 6: Název práce: Watermarking videa A
Page 7 and 8: information about copyright owner a
Page 9 and 10: Common geometric distortions - the
Page 11 and 12: watermark, i.e. values of the water
Page 13 and 14: Chapter 3 The H.264 Standard The H.
Page 15 and 16: There are three types of slices: I,
Page 17 and 18: frequency transform. The choice is
Page 19 and 20: Chapter 4 Implementation Details Th
Page 21 and 22: auxiliary coded pictures), Supplem
Page 23 and 24: an intra coded slice, content ID -
Page 25 and 26: samples is subtracted from the resi
Page 27 and 28: At the beginning of the entire proc
Page 29 and 30: file in order to provide detailed r
Page 31 and 32: as a part of the whole process. The
Page 33 and 34: coefficients are hardly set to non-
Page 35 and 36: Table 1 outlines characteristics of
Page 37 and 38: The third and the fourth row sets c
Page 39 and 40: Using block method, we cannot consi
Page 41 and 42: probabilities of watermark detectio
Page 43 and 44: 5.4.3 Cropping In the cropping test
Page 45 and 46: 5.4.6 Blurring Blurring can be cons
Page 47 and 48: 5.4.8 Multiple Watermark Embedding
Page 49 and 50: Despite the expectations, all the m
Page 51: ecompression and noising, and to so
Page 55 and 56: Appendix A Enclosed CD & Installati
Page 57 and 58: Appendix B The plugin usage The wat
Page 59: length is the length of the list of

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