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Adaptive Block Coding Order for Intra Prediction in HEVC
Zheng A.1; Yuan Y.1; Zhou J.4; Guo Y.3; Yang H.2; Au O.C.1
2016-11-01
Source PublicationIEEE Transactions on Circuits and Systems for Video Technology
ISSN10518215
Volume26Issue:11Pages:2152-2158
Abstract

In this paper, an adaptive block coding order for intra prediction is proposed. Modern video coding standards, including the most recent High Efficiency Video Coding (HEVC), utilize fixed scan orders in processing blocks during intra coding. However, the fixed scan orders typically result in residual blocks with noticeable edge patterns. That means the fixed scan orders cannot fully exploit the content-adaptive spatial correlations between adjacent blocks, thus the bitrate after compression tends to be large. To reduce the bitrate induced by inaccurate intra prediction, the proposed approach adaptively chooses both the block and subblock coding orders by minimizing the coding cost. Specifically, determining the block coding order is formulated as a traveling salesman problem that is solved using dynamic programming. Besides the block coding order, we also design the subblock coding order in each block with an adaptive manner. The experimental results demonstrate a Bjontegaard-Delta-rate reduction of up to 4.4% compared with HEVC anchor.

KeywordAdaptive Block Coding Order (Abco) High Efficiency Video Coding (Hevc) Intra Prediction Video Coding
DOI10.1109/TCSVT.2015.2501738
URLView the original
Indexed BySCI
Language英语
WOS Research AreaEngineering
WOS SubjectEngineering, Electrical & Electronic
WOS IDWOS:000387894100006
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Cited Times [WOS]:4   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionDEPARTMENT OF COMPUTER AND INFORMATION SCIENCE
Affiliation1.Hong Kong University of Science and Technology
2.Huawei Technologies Co., Ltd.
3.Chinese Academy of Sciences
4.Universidade de Macau
Recommended Citation
GB/T 7714
Zheng A.,Yuan Y.,Zhou J.,et al. Adaptive Block Coding Order for Intra Prediction in HEVC[J]. IEEE Transactions on Circuits and Systems for Video Technology,2016,26(11):2152-2158.
APA Zheng A.,Yuan Y.,Zhou J.,Guo Y.,Yang H.,&Au O.C..(2016).Adaptive Block Coding Order for Intra Prediction in HEVC.IEEE Transactions on Circuits and Systems for Video Technology,26(11),2152-2158.
MLA Zheng A.,et al."Adaptive Block Coding Order for Intra Prediction in HEVC".IEEE Transactions on Circuits and Systems for Video Technology 26.11(2016):2152-2158.
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