Watermarking in H.264/AVC compressed domain using Exp-Golomb code words mapping

Dawen Xu; Rangding Wang

doi:10.1117/1.3622759

1 September 2011 Watermarking in H.264/AVC compressed domain using Exp-Golomb code words mapping

Dawen Xu, Rangding Wang

Author Affiliations +

Funded by: National Natural Science Foundation of China, Zhejiang Provincial Natural Science Foundation of China, Ningbo Natural Science Foundation

Optical Engineering, Vol. 50, Issue 9, 097402 (September 2011). https://doi.org/10.1117/1.3622759

Abstract

In this paper, a fast watermarking algorithm for the H.264/AVC compressed video using Exponential-Golomb (Exp-Golomb) code words mapping is proposed. During the embedding process, the eligible Exp-Golomb code words of reference frames are first identified, and then the mapping rules between these code words and the watermark bits are established. Watermark embedding is performed by modulating the corresponding Exp-Golomb code words, which is based on the established mapping rules. The watermark information can be extracted directly from the encoded stream without resorting to the original video, and merely requires parsing the Exp-Golomb code from bit stream rather than decoding the video. Experimental results show that the proposed watermarking scheme can effectively embed information with no bit rate increase and almost no quality degradation. The algorithm, however, is fragile and re-encoding at alternate bit rates or transcoding removes the watermark.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Dawen Xu and Rangding Wang "Watermarking in H.264/AVC compressed domain using Exp-Golomb code words mapping," Optical Engineering 50(9), 097402 (1 September 2011). https://doi.org/10.1117/1.3622759

Published: 1 September 2011

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