Title :
A high-capacity block based video watermark
Author :
Thiemert, Stefan ; Vogel, Thomas ; Dittmann, Jana ; Steinebach, Martin
Author_Institution :
Fraunhofer IPSI, Darmstadt, Germany
fDate :
31 Aug.-3 Sept. 2004
Abstract :
Robust watermarks can be used for different applications. Main aspects are robustness, transparency and capacity. We present a block based video watermark, which is robust against several image processing operations. It provides a high capacity and good transparency. The watermarking scheme enforces a relationship between block averages in groups of blocks to represent the embedded binary message. Furthermore it creates a relationship between chosen coefficients into each block to represent the message redundantly. We present several evaluation results to demonstrate the robustness and transparency of the scheme.
Keywords :
binary codes; block codes; copyright; data compression; message authentication; video coding; watermarking; binary message; block based video watermark; copyright authentication; image processing operations; Authentication; Discrete cosine transforms; Image coding; Image edge detection; Robustness; Security; Transform coding; Video compression; Videoconference; Watermarking;
Conference_Titel :
Euromicro Conference, 2004. Proceedings. 30th
Print_ISBN :
0-7695-2199-1
DOI :
10.1109/EURMIC.2004.1333404