NDLI: A New Gradient-Based Mode Selection of Intra Prediction for 4×4 block in H.264/AVC

Content Provider	IEEE Xplore Digital Library
Author	Kyeong-Yuk Min Jong-Wha Chong
Copyright Year	2006
Description	Author affiliation: Dept. of Electron. Eng., Hanyang Univ., Seoul (Kyeong-Yuk Min; Jong-Wha Chong)
Abstract	In this paper, we propose a new gradient-based mode selection of intra prediction for 4times4 block in H.264/AVC video coding standard. In order to achieve rate distortion optimization, H.264/AVC encoder has to code the video by exhaustively trying all the mode combinations, including different intra prediction modes. As a result, the computational complexity of H.264/AVC encoder increases drastically. Based on local edge direction, the proposed method considerably reduces the overall complexity and encoding time by using a few candidate modes instead of all nine modes for intra mode selection of H.264/AVC. The proposed method, which was implemented into JM9.4 provided by Joint Video Team (JVT), can reduce about 58.4% in regard to computation complexity and 51.9% as to encoding time over full search method while maintaining similar PSNR and bite rate
Starting Page	3440
Ending Page	3443
File Size	971004
Page Count	4
File Format	PDF
ISBN	1424403901
ISSN	1553572X
DOI	10.1109/IECON.2006.348005
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-06
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Automatic voltage control Image coding Image reconstruction Video coding Encoding PSNR Rate-distortion Computational complexity Search methods Maintenance engineering
Content Type	Text
Resource Type	Article

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