NDLI: Adaptive fast block mode decision algorithm for H.264/AVC

Content Provider	IEEE Xplore Digital Library
Author	Po-Hung Chen Hung-Ming Chen Mon-Chau Shie Che-Hung Su Wei-Lung Mao Chia-Ke Huang
Copyright Year	2010
Description	Author affiliation: Dept. Electronic Engineering, National Taiwan University of Science and Technology, Taiwan (Mon-Chau Shie; Che-Hung Su) \|\| Dept. Computer Science and Information Engineering, National Taichung Institute of Technology, Taiwan (Hung-Ming Chen) \|\| Dept. Electronic Engineering, National Formosa University, Taiwan (Po-Hung Chen; Wei-Lung Mao; Chia-Ke Huang)
Abstract	H.264/AVC outperforms the previous coding standards thanks to variable block size motion compensation (VBSMC) ranging from 4×4 to 16×16 in interframe coding. However, this new feature causes extremely high computation complexity when rate-distortion optimization(RDO) is performed using full mode decision. In this paper, we propose an adaptive fast block mode decision algorithm (AFBMD) leveraging the following characteristics to significantly reduce the complexity. (1) detecting stationarity of a block by using sum of absolute difference (SAD) and the biggest pixel difference. (2) exploiting the left and upper block modes to determine the block mode priority order. (3) comparing the RDcosts of the current best block mode and the block modes in the priority order that attempt to early terminate the block mode decision. Compared with the full mode decision (FMD) [20], the experimental results shown that the proposed algorithm reduces the mode decision complexity up to 77% while still maintains almost the same image quality as FMD.
Starting Page	2002
Ending Page	2007
File Size	469086
Page Count	6
File Format	PDF
ISBN	9781424450459
e-ISBN	9781424450466
DOI	10.1109/ICIEA.2010.5516720
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-15
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic voltage control Motion estimation Video coding Rate-distortion Image edge detection IEC standards ISO standards Motion detection Computer science Motion compensation mode decision video coding H.264 MPEG-4/AVC rate distortion homoenity stationarity
Content Type	Text
Resource Type	Article

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