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QoP-Driven Scheduling for MPEG Video Decoding

dc.contributor.authorHua, Shaoxiong
dc.contributor.authorQu, Gang
dc.identifier.citationS. Hua and G. Qu. "QoP-Driven Scheduling for MPEG Video Decoding," IEEE Transactions on Consumer Electronics,Vol. 49, No. 4, pp. 1341-1347, November 2003.en
dc.description.abstractMPEG video decoding algorithm has been embedded into many consumer electronic products. In this paper, we demonstrate that the completion ratio (CR) does not represent well the quality of presentation (QoP) of MPEG video. We then propose a new QoP metric, which 1) is based on frame completion ratio but 2) differentiates firm and soft deadlines and also 3) considers the frame dependency. We show that, on a set of simulated MPEG movies, the proposed QoP metric measures the QoP of the movies much better than the completion ratio. We then present a set of online scheduling algorithms that enhance QoP significantly, particularly for overloaded systems.en
dc.format.extent355541 bytes
dc.subjectMPEG video decodingen
dc.subjectoverloaded systemsen
dc.subjectreal-time schedulingen
dc.titleQoP-Driven Scheduling for MPEG Video Decodingen
dc.relation.isAvailableAtA. James Clark School of Engineeringen_us
dc.relation.isAvailableAtElectrical & Computer Engineeringen_us
dc.relation.isAvailableAtDigital Repository at the University of Marylanden_us
dc.relation.isAvailableAtUniversity of Maryland (College Park, MD)en_us
dc.rights.licenseCopyright © 2003 IEEE. Reprinted from IEEE Transactions on Consumer Electronics. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Maryland's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to By choosing to view this document, you agree to all provisions of the copyright laws protecting it.

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