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Complexity scalable control algorithm for intra coding in H.264 under energy constraints

Gao Xuejuan Lam Kin Man Zhuo Li Shen Lansun

高技术通讯(英文版)2010,Vol.16Issue(3):274-279,6.
高技术通讯(英文版)2010,Vol.16Issue(3):274-279,6.DOI:10.3772/j.issn.1006-6748.2010.03.009

Complexity scalable control algorithm for intra coding in H.264 under energy constraints

Complexity scalable control algorithm for intra coding in H.264 under energy constraints

Gao Xuejuan 1Lam Kin Man 2Zhuo Li 2Shen Lansun1

作者信息

  • 1. Signal and Information Processing Laboratory,Beijing University of Technology,Beijing 100124,P.R.China
  • 2. Centre for Signal Processing,Department of Electronic and Information Engineering,the Hong Kong Polytechnic University,Kowloon,Hong Kong,P.R.China
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摘要

Abstract

In this paper,the complexity of intra coding is first analyzed so as to achieve a weight of complexity measurement for each intra mode.Then.a new complexity sealable control algorithm for intra coding in H.264 is proposed,based on the rearrangement of the order of candidate modes and an efficient complexity allocation and control(CAAC)scheme at the macroblock(MB)level.The candidate modes of each MB ale rearranged according to the local-edge information.Experimental results show that our proposed algorithm can make an appropriate cut-off point of the candidate modes sequence adaptively according to the current energy condition of a mobile device,so as to adjust the complexity at any level while maximizing the video quality,which can prolong the operational lifetime of the battery with minimum degradation in video quality.

关键词

complexity scalable control/complexity allocation/rearrangement of candidate modes/intra coding/H.264/energy constraints

Key words

complexity scalable control/complexity allocation/rearrangement of candidate modes/intra coding/H.264/energy constraints

分类

信息技术与安全科学

引用本文复制引用

Gao Xuejuan,Lam Kin Man,Zhuo Li,Shen Lansun..Complexity scalable control algorithm for intra coding in H.264 under energy constraints[J].高技术通讯(英文版),2010,16(3):274-279,6.

基金项目

Supported by the National High Technology Research and Development Program of China(2008AA01A313),the National Natural Science Foundation of China(60772069),and a Grant from the Centre for Signal Processing of the Hong Kong Polytechnic University(1-BB9c). (2008AA01A313)

高技术通讯(英文版)

OAEI

1006-6748

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