Conference Proceeding

A new algorithm for collusion resistant video watermarking

Dept. of Electron. & Commun. Eng., Indian Inst. of Technol., Guwahati, India;
11/2004; DOI:10.1109/ICIP.2004.1421369 ISBN: 0-7803-8554-3 pp.1581- 1584 Vol. 3 In proceeding of: Image Processing, 2004. ICIP '04. 2004 International Conference on, Volume: 3
Source: IEEE Xplore

ABSTRACT This paper presents a new algorithm for collusion resistant multibit video watermarking. Video frames from the same scene of the video sequence are decomposed into wavelet coefficient frames by temporal wavelet transform and the watermark is embedded into the low-pass temporal frames. Embedding is done in the DCT domain of the low-pass temporal wavelet frames by applying the perceptual masking properties of the DCT coefficients. The watermark decoder is a blind statistical decoder. In the decoder, the underlying probability distribution of the mid-frequency DCT coefficients of the temporal low-pass wavelet frames is approximated by the generalized Gaussian distribution. The robustness of the proposed algorithm against different video degradations and distortions is evaluated and presented.

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Keywords

blind statistical decoder
 
collusion resistant multibit video watermarking
 
DCT coefficients
 
different video degradations
 
distortions
 
generalized Gaussian distribution
 
low-pass temporal frames
 
low-pass temporal wavelet frames
 
mid-frequency DCT coefficients
 
paper presents
 
perceptual masking properties
 
proposed algorithm
 
temporal low-pass wavelet frames
 
temporal wavelet
 
underlying probability distribution
 
Video frames
 
video sequence
 
watermark
 
watermark decoder
 
wavelet coefficient frames