Reversible data hiding scheme for the H.264/AVC codec

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dc.contributor.authorBouchama, Samira
dc.contributor.authorHamami, Latifa
dc.contributor.authorAliane, Hassina
dc.date.accessioned2013-11-19T08:39:45Z
dc.date.available2013-11-19T08:39:45Z
dc.date.issued2013
dc.description.abstractVery few reversible data hiding methods are proposed for compressed video and particularly for the H.264 video codec despite the importance of both of the watermarking reversibility criterion and the codec. The reversible watermarking techniques of images, when applied to the compressed video, can affect particularly the video quality and bitrate. Thus, to make these techniques applicable, the embedding capacity is usually reduced. Therefore an adaptation is necessary to improve the tradeoff between the embedding capacity, the visual quality and the bitrate of the watermarked video. In this paper, we investigate the possibility to introduce the DCT based reversible data hiding method, proposed initially for compressed images, to H.264/AVC codec. The embedding is applied during the encoding process, in the quantized DCT coefficients in I and P frames. To enhance the embedding capacity a mapping rule is used to embed three bits in one coefficient. Results show that exploiting the P frames improves considerably the video quality and the embedding capacity.fr_FR
dc.identifier.isrnCERIST-DTISI/RR--13-000000011--dzfr_FR
dc.identifier.urihttp://dl.cerist.dz/handle/CERIST/223
dc.publisherCERIST
dc.relation.ispartofRapports de recherche internes
dc.relation.ispartofseriesRapports de recherche internes
dc.relation.placeAlger
dc.subjectH264/AVC video standardfr_FR
dc.subjectVideo watermarkingfr_FR
dc.subjectReversible watermarkingfr_FR
dc.titleReversible data hiding scheme for the H.264/AVC codecfr_FR
dc.typeTechnical Report
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