Title :
A robust video watermarking method
Author :
Kim, Dug-Ryung ; Park, Sung-Han
Author_Institution :
Dept. of Comput. Sci., Ansan Coll., South Korea
Abstract :
We propose a new watermarking method to embed a label in a video which is robust against the change of the group of picture. The proposed method embeds labels in the pixel domain, but detects them in the DCT frequency domain. A lookup table of the unique relationship between the pixel patterns and their sign sequences of eight low DCT coefficients is employed. To keep a quality of videos after embedding a label, the size of watermark is determined based on the human visual system. We analyze bit error rates of labels embedded in MPEG2 compressed video using the central limit theorem and compare the simulation results with previous methods
Keywords :
data compression; discrete cosine transforms; multimedia computing; security of data; table lookup; video coding; DCT frequency domain; MPEG2 compressed video; bit error rates; central limit theorem; human visual system; label embedding; lookup table; low DCT coefficients; pixel domain; pixel patterns; robust video watermarking method; sign sequences; watermark size; Bit error rate; Discrete cosine transforms; Error analysis; Frequency domain analysis; Humans; Robustness; Table lookup; Video compression; Visual system; Watermarking;
Conference_Titel :
Multimedia and Expo, 2000. ICME 2000. 2000 IEEE International Conference on
Conference_Location :
New York, NY
Print_ISBN :
0-7803-6536-4
DOI :
10.1109/ICME.2000.871473
