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dc.contributor.authorAsghar, Mamoona Naveed
dc.contributor.authorKousar, Rukhsana
dc.contributor.authorMajid, Hooriya
dc.contributor.authorFleury, Martin
dc.identifier.citationAsghar, M.N., Kousar, R., Majid, H., Fleury, M. (2017). Transparent encryption with scalable video communication: Lower-latency, CABAC-based schemes. Journal of Visual Communication and Image Representation. 45, pp.122-126.
dc.identifier.otherArticles - Software Research Institute AITen_US
dc.description.abstractSelective encryption masks all of the content without completely hiding it, as full encryption would do at a cost in encryption delay and increased bandwidth. Many commercial applications of video encryption do not even require selective encryption, because greater utility can be gained from transparent encryption, i.e. allowing prospective viewers to glimpse a reduced quality version of the content as a taster. Our lightweight selective encryption scheme when applied to scalable video coding is well suited to transparent encryption. The paper illustrates the gains in reducing delay and increased distortion arising from a transparent encryption that leaves reduced quality base layer in the clear. Reduced encryption of B-frames is a further step beyond transparent encryption in which the computational overhead reduction is traded against content security and limited distortion. This spectrum of video encryption possibilities is analyzed in this paper, though all of the schemes maintain decoder compatibility and add no bitrate overhead as a result of jointly encoding and encrypting the input video by virtue of carefully selecting the entropy coding parameters that are encrypted. The schemes are suitable both for H.264 and HEVC codecs, though demonstrated in the paper for H.264. Selected Content Adaptive Binary Arithmetic Coding (CABAC) parameters are encrypted by a lightweight Exclusive OR technique, which is chosen for practicality.en_US
dc.relation.ispartofJournal of Visual Communication and Image Representationen_US
dc.rightsAttribution-NonCommercial-NoDerivs 3.0 Ireland*
dc.subjectScalable video streamingen_US
dc.subjectReduced encryptionen_US
dc.subjectSelective encyrptionen_US
dc.subjectTransparent encryptionen_US
dc.titleTransparent encryption with scalable video communication: Lower-latency, CABAC-based schemesen_US
dc.rights.accessOpen Accessen_US
dc.subject.departmentSoftware Research Institute AITen_US

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Attribution-NonCommercial-NoDerivs 3.0 Ireland
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Ireland