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Robust dual watermarking algorithm for AVS video / Yuan-Gen Wang in Signal processing. Image communication, Vol. 24 N° 4 (Avril 2009) 

Public ISBD [article]  in Signal processing. Image communication > Vol. 24 N° 4 (Avril 2009) . - pp. 333-344 Titre : Robust dual watermarking algorithm for AVS video Type de document : texte imprimé Auteurs : Yuan-Gen Wang, Auteur ; Zhe-Ming Lu, Auteur ; Liang Fan, Auteur Article en page(s) : pp. 333-344 Note générale : Electronique Langues : Anglais (eng) Mots-clés : Audio  video  coding  standard  (AVS)  Video  watermarking  Particle  swarm  optimization Index. décimale : 621.382 Dispositifs électroniques utilisant les effets des corps solides. Dispositifs semi-conducteurs Résumé : In this paper, we propose a robust dual watermarking algorithm for video based on the audio video coding standard (AVS). One watermark is embedded in luminance components, whose embedding positions are optimized using the particle swarm optimization (PSO) technique, resisting common signal processing operations such as median filtering, adding noises, cropping and so on. To combat geometric and re-encoding attacks, the other watermark is embedded in chrominance components by adjusting the energy relationship between Cb and Cr components based on the just noticeable distortion (JND) concept of the human vision system (HVS). Both of them are implemented in the compressed domain by modifying the quantized coefficients, combined together to satisfy the requirements of robustness and imperceptibility. Only entropy decoding is required to detect the watermark, and thus the watermark detection process has low computational complexity. Extensive experimental results show that the high robustness and good quality of watermarked AVS video can be achieved simultaneously. DEWEY : 361.382 ISSN : 0923-5965 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235640%23 [...] [article] Robust dual watermarking algorithm for AVS video [texte imprimé] / Yuan-Gen Wang, Auteur ; Zhe-Ming Lu, Auteur ; Liang Fan, Auteur . - pp. 333-344. Electronique Langues : Anglais (eng) in Signal processing. Image communication > Vol. 24 N° 4 (Avril 2009) . - pp. 333-344 Mots-clés : Audio  video  coding  standard  (AVS)  Video  watermarking  Particle  swarm  optimization Index. décimale : 621.382 Dispositifs électroniques utilisant les effets des corps solides. Dispositifs semi-conducteurs Résumé : In this paper, we propose a robust dual watermarking algorithm for video based on the audio video coding standard (AVS). One watermark is embedded in luminance components, whose embedding positions are optimized using the particle swarm optimization (PSO) technique, resisting common signal processing operations such as median filtering, adding noises, cropping and so on. To combat geometric and re-encoding attacks, the other watermark is embedded in chrominance components by adjusting the energy relationship between Cb and Cr components based on the just noticeable distortion (JND) concept of the human vision system (HVS). Both of them are implemented in the compressed domain by modifying the quantized coefficients, combined together to satisfy the requirements of robustness and imperceptibility. Only entropy decoding is required to detect the watermark, and thus the watermark detection process has low computational complexity. Extensive experimental results show that the high robustness and good quality of watermarked AVS video can be achieved simultaneously. DEWEY : 361.382 ISSN : 0923-5965 En ligne : http://www.sciencedirect.com/science?_ob=PublicationURL&_tockey=%23TOC%235640%23 [...]