A fast SAO algorithm based on coding unit partition for HEVC

Zhengyong Zhang, Zhiyun Chen, Pu Peng

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

7 Scopus citations

Abstract

Sample adaptive offset (SAO) filter algorithm is introduced by HEVC as a completely new stage to improve video quality. It is located after deblocking filter, adding an offset value to each sample based on the reconstructed data and the original YUV. In order to solve the problem of high computational complexity of SAO, a fast S AO algorithm based on coding unit partition is proposed in this paper. Evaluating the texture complexity of coding unit by the depth of block partitioning, and only the complex coding unit performed the S AO filter. Simulation results show that, compared with the HEVC conference software HM9.0, the proposed algorithm can reduce about 44.55% encoding time up to 83.68%, while it suffers from negligible on PS NR performance.

Original languageEnglish
Title of host publicationICSESS 2015 - Proceedings of 2015 IEEE 6th International Conference on Software Engineering and Service Science
EditorsM. Surendra Prasad Babu, Li Wenzheng
PublisherIEEE Computer Society
Pages392-395
Number of pages4
ISBN (Electronic)9781479983520
DOIs
StatePublished - 25 Nov 2015
Event6th IEEE International Conference on Software Engineering and Service Science, ICSESS 2015 - Beijing, China
Duration: 23 Sep 201525 Sep 2015

Publication series

NameProceedings of the IEEE International Conference on Software Engineering and Service Sciences, ICSESS
Volume2015-November
ISSN (Print)2327-0586
ISSN (Electronic)2327-0594

Conference

Conference6th IEEE International Conference on Software Engineering and Service Science, ICSESS 2015
Country/TerritoryChina
CityBeijing
Period23/09/1525/09/15

Keywords

  • HEVC standard
  • SAO filter
  • coding efficiency
  • coding unit partition
  • texture characteristic
  • video coding

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