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dc.contributor.authorZUPANCIC, I
dc.contributor.authorBlasi, SG
dc.contributor.authorPeixoto, E
dc.contributor.authorIzquierdo, E
dc.contributor.authorIEEE International Conference on Image Processing
dc.date.accessioned2016-09-21T15:50:41Z
dc.date.issued2016-09
dc.date.submitted2016-09-06T16:33:15.644Z
dc.identifier.urihttp://qmro.qmul.ac.uk/xmlui/handle/123456789/15526
dc.descriptionThis research utilised Queen Mary’s MidPlus computational facilities, supported by QMUL Research-IT and funded by EPSRC grant EP/K000128/1.en_US
dc.description.abstractThe flexible partitioning scheme and increased number of prediction modes in the High Efficiency Video Coding (HEVC) standard are largely responsible for both its high compression efficiency and computational complexity. Each frame in HEVC is partitioned in Coding Tree Units (CTUs) of fixed size, which are then recursively partitioned in Coding Units (CUs). In typical implementations, CUs in a CTU are visited from top to bottom at each level of recursion. In this paper, a different approach is used in which CUs in a CTU can be adaptively visited also in reverse order from bottom to top. Three novel algorithms to reduce complexity of HEVC depth selection, mode decision and inter-prediction are presented, based on this adaptive visiting order. Experimental results show that the proposed encoder achieves on average 38.2% speed-ups compared to fast reference HEVC implementations with pre-built speed-ups enabled, for very limited efficiency losses.
dc.rights© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
dc.titleHEVC Encoder Optimisations Using Adaptive Coding Unit Visiting Order
dc.typeConference Proceeding
pubs.organisational-group/Queen Mary University of London
pubs.organisational-group/Queen Mary University of London/Faculty of Science & Engineering
pubs.organisational-group/Queen Mary University of London/Faculty of Science & Engineering/Electronic Engineering and Computer Science - Electronic Engineering - Research Students
pubs.organisational-group/Queen Mary University of London/Faculty of Science & Engineering/Electronic Engineering and Computer Science - Staff
pubs.organisational-group/Queen Mary University of London/Faculty Reporting - Research Students
pubs.organisational-group/Queen Mary University of London/Faculty Reporting - Research Students/Faculty of Science & Engineering PGRs
pubs.publication-statusAccepted


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