NDLI: A fast SAO algorithm based on coding unit partition for HEVC

Content Provider	IEEE Xplore Digital Library
Author	Zhang Zhengyong Chen Zhiyun Pu Peng
Copyright Year	2015
Description	Author affiliation: Coll. of Inf. Sci. Technol., East China Normal Univ., Shanghai, China (Zhang Zhengyong; Chen Zhiyun; Pu Peng)
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.
Starting Page	392
Ending Page	395
File Size	1877647
Page Count	4
File Format	PDF
ISBN	9781479983520
ISSN	23270594
e-ISBN	9781479983537
DOI	10.1109/ICSESS.2015.7339082
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-23
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Video coding HEVC standard Bit rate Coding efficiency Coding unit partition Filtering algorithms Encoding Complexity theory Partitioning algorithms SAO filter Texture characteristic Standards
Content Type	Text
Resource Type	Article

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