Low-complexity rate-distortion optimization algorithms for HEVC intra prediction

Zhe Sheng, Dajiang Zhou, Heming Sun, Satoshi Goto

研究成果: Conference contribution

30 被引用数 (Scopus)

抄録

HEVC achieves a better coding efficiency relative to prior standards, but also involves dramatically increased complexity. The complexity increase for intra prediction is especially intensive due to a highly flexible quad-tree coding structure and a large number of prediction modes. The encoder employs rate-distortion optimization (RDO) to select the optimal coding mode. And RDO takes a great portion of intra encoding complexity.Moreover HEVC has stronger dependency on RDO than H.264/AVC. To reduce the computational complexity and to implement a real-time system,this paper presents two low-complexity RDO algorithms for HEVC intra prediction. The structure of RDO is simplified by the proposed rate and distortion estimators, and some hardware-unfriendly modules are facilitated. Compared with the original RDO procedure, the two proposed algorithms reduce RDO time by 46% and 64% respectively with acceptable coding efficiency loss.

本文言語English
ホスト出版物のタイトルMultiMedia Modeling - 20th Anniversary International Conference, MMM 2014, Proceedings
ページ541-552
ページ数12
PART 1
DOI
出版ステータスPublished - 2014 2月 7
イベント20th Anniversary International Conference on MultiMedia Modeling, MMM 2014 - Dublin, Ireland
継続期間: 2014 1月 62014 1月 10

出版物シリーズ

名前Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
番号PART 1
8325 LNCS
ISSN(印刷版)0302-9743
ISSN(電子版)1611-3349

Conference

Conference20th Anniversary International Conference on MultiMedia Modeling, MMM 2014
国/地域Ireland
CityDublin
Period14/1/614/1/10

ASJC Scopus subject areas

  • 理論的コンピュータサイエンス
  • コンピュータ サイエンス(全般)

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