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1 August 2001 Digital video watermarking using 3D-DCT and intracubic correlation
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Proceedings Volume 4314, Security and Watermarking of Multimedia Contents III; (2001)
Event: Photonics West 2001 - Electronic Imaging, 2001, San Jose, CA, United States
A digital video watermarking algorithm using 3D-DCT and intra-cubic correlation is proposed. More specifically, we divide the video sequence into non-overlapping image cubes and take a 3D-DCT on each image cube. The coefficients in the frequency domain in the cube are randomly selected and partitioned into two equal sets. Then, by referring the user-defined logo, a small value is added to the coefficients in one set while the same amount is subtracted from those of the other set. By taking the difference of mean values of the two sets in each cube, we can extract the watermark bits embedded into the cube. Collecting all watermark bits and visually inspecting the collected image logo, one can assert the copyright of the video. Experimental results show that we can extract over 90% of the binary logo image for various possible attacks such as MPEG compression, frame-rate changes, format conversion and frame skipping.
© (2001) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Jae Hyuck Lim, Dae Jin Kim, Hyun Tae Kim, and Chee Sun Won "Digital video watermarking using 3D-DCT and intracubic correlation", Proc. SPIE 4314, Security and Watermarking of Multimedia Contents III, (1 August 2001);

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