Security of human video objects by incorporating a chaos-based feedback cryptographic scheme

Paraskevi, T; Klimis, N; Stefanos, K

dc.contributor.author	Paraskevi, T	en
dc.contributor.author	Klimis, N	en
dc.contributor.author	Stefanos, K	en
dc.date.accessioned	2014-03-01T02:49:54Z
dc.date.available	2014-03-01T02:49:54Z
dc.date.issued	2004	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34777
dc.relation.uri	http://www.scopus.com/inward/record.url?eid=2-s2.0-13444292941&partnerID=40&md5=f10d263b8fb7de0f226c4dfb1d92e6ce	en
dc.subject	Chaos	en
dc.subject	Cryptographic systems	en
dc.subject	Face and body detection	en
dc.subject	Human video objects	en
dc.subject	Logistic map	en
dc.subject.other	Algorithms	en
dc.subject.other	Chaos theory	en
dc.subject.other	Feedback	en
dc.subject.other	Medical imaging	en
dc.subject.other	Multimedia systems	en
dc.subject.other	Security of data	en
dc.subject.other	Semantics	en
dc.subject.other	Cryptographic systems	en
dc.subject.other	Face and body detection	en
dc.subject.other	Human video objects	en
dc.subject.other	Logistic maps	en
dc.subject.other	Cryptography	en
dc.title	Security of human video objects by incorporating a chaos-based feedback cryptographic scheme	en
heal.type	conferenceItem	en
heal.publicationDate	2004	en
heal.abstract	Security of multimedia files attracts more and more attention and many encryption methods have been proposed in literature. However most cryptographic systems deal with multimedia files as binary large objects, without taking into consideration regions of semantic information. These regions may need better protection or can be the only regions that need protection, depending on the specific application. Towards this direction, in this paper we propose a human video object encryption system based on the chaotic logistic map. Initially face regions are efficiently detected and afterwards body regions are extracted, using geometric information of the location of face regions. Next the pixels of extracted human video objects are encrypted using an iterative cipher module, which is based on a feedback mechanism responsible for mixing the current encryption parameters with encrypted information of the previous step. The system presents robustness against known cryptanalytic attacks, and can save us a great amount of computational resources and time devoted for encrypting the whole contents of a multimedia file.	en
heal.journalName	ACM Multimedia 2004 - proceedings of the 12th ACM International Conference on Multimedia	en
dc.identifier.spage	352	en
dc.identifier.epage	355	en