Watermarking of Compressed Video based on DCT Coefficients and Watermark Preprocessing

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dc.citation.epage119
dc.citation.spage114
dc.citation.volume6
dc.contributor.authorBouchama, Samira
dc.contributor.authorHamami, Latifa
dc.contributor.authorAliane, Hassina
dc.date.accessioned2013-04-10T10:21:22Z
dc.date.available2013-04-10T10:21:22Z
dc.date.issued2011-03-05
dc.description.abstractConsidering the importance of watermarking of compressed video, several watermarking methods have been proposed for authentication, copyrights protection or simply for a secure data carrying through the Internet. Applied to the H.264/AVC video standard, in most of cases, these methods are based on the use of the quantized DCT coefficients often experimentally or randomly selected. In this paper, we introduce a watermarking method based on the DCT coefficients using two steps: the first one consists in a watermark pre-processing based on similarity measurement which can allow to adapt the best the watermark to the carrying coefficients of low frequencies. A second step takes advantage from the coefficients of high frequencies in order to maintain the video quality and reduce the bitrate. Results show that it is possible to achieve a very good compromise between video quality, embedding capacity and bitrate.fr_FR
dc.identifier.isbn978-989-8425-46-1fr_FR
dc.identifier.urihttp://dl.cerist.dz/handle/CERIST/84
dc.relation.ispartofInternational Conference on Imaging Theory and Applications
dc.relation.ispartofseriesInternational Conference on Imaging Theory and Applications;6
dc.relation.pages114-119fr_FR
dc.relation.placeAlgarve-Portugalfr_FR
dc.structureWeb Sémantique et Langue Arabefr_FR
dc.subjectVideo watermarkingen
dc.subjectH.264/AVC standarden
dc.subjectQuantized DCT coefficientsen
dc.subjectIntercorrelation functionen
dc.titleWatermarking of Compressed Video based on DCT Coefficients and Watermark Preprocessingen
dc.typeConference paper
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