Confronting the synchronization problem of semantic region under geometric attacks

Tzouveli, P; Ntalianis, K; Kollias, S

dc.contributor.author	Tzouveli, P	en
dc.contributor.author	Ntalianis, K	en
dc.contributor.author	Kollias, S	en
dc.date.accessioned	2014-03-01T02:43:59Z
dc.date.available	2014-03-01T02:43:59Z
dc.date.issued	2006	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/31591
dc.subject	Robust Watermarking	en
dc.subject	Spread Spectrum	en
dc.subject.other	Code division multiple access	en
dc.subject.other	Feature extraction	en
dc.subject.other	Image retrieval	en
dc.subject.other	Semantics	en
dc.subject.other	Synchronization	en
dc.subject.other	Geometric attacks	en
dc.subject.other	Multi bits watermark	en
dc.subject.other	Robust watermark retrieval	en
dc.subject.other	Digital watermarking	en
dc.title	Confronting the synchronization problem of semantic region under geometric attacks	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1109/ICME.2006.262788	en
heal.identifier.secondary	http://dx.doi.org/10.1109/ICME.2006.262788	en
heal.identifier.secondary	4036857	en
heal.publicationDate	2006	en
heal.abstract	In this paper, an affine invariant watermarking scheme, robust to geometric attacks, is proposed and applied to face regions. Initially, face regions are unsupervisedly extracted from an initial image and a normalization procedure, invariant to geometric attacks is applied on each of these regions using a set of specific moment criteria. A spread spectrum-based DS-CDMA watermarking scheme is then used in order to provide a multi bits watermark. The multi bits watermark embedding and detection procedures are then applicable to each normalized face region. Finally, performance of the proposed face regions watermarking scheme is tested under various distortions, providing efficient and robust watermark retrieval. © 2006 IEEE.	en
heal.journalName	2006 IEEE International Conference on Multimedia and Expo, ICME 2006 - Proceedings	en
dc.identifier.doi	10.1109/ICME.2006.262788	en
dc.identifier.volume	2006	en
dc.identifier.spage	1345	en
dc.identifier.epage	1348	en