Fast mode decision algorithm for intraprediction in H.264/AVC video coding

The H.264/AVC video coding standard aims to enable significantly improved compression performance compared to all existing video coding standards. In order to achieve this, a robust rate-distortion optimization (RDO) technique is employed to select the best coding mode and reference frame for each m...

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Bibliographic Details
Published in:IEEE transactions on circuits and systems for video technology 2005-07, Vol.15 (7), p.813-822
Main Authors: Feng Pan, Xiao Lin, Rahardja, S., Lim, K.P., Li, Z.G., Dajun Wu, Si Wu
Format: Article
Language:English
Subjects:
Algorithms
Applied sciences
Automatic voltage control
AVC
Circuits
Coding
Coding, codes
Compressing
Exact sciences and technology
H.264
Histograms
IEC standards
Information, signal and communications theory
intraprediction
ISO standards
JVT
Mathematical analysis
Miscellaneous
Motion compensation
Motion estimation
MPEG
Optimization
PSNR
Rate-distortion
Robustness
Signal and communications theory
Signal processing
Telecommunications and information theory
Video coding
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Summary:The H.264/AVC video coding standard aims to enable significantly improved compression performance compared to all existing video coding standards. In order to achieve this, a robust rate-distortion optimization (RDO) technique is employed to select the best coding mode and reference frame for each macroblock. As a result, the complexity and computation load increase drastically. This paper presents a fast mode decision algorithm for H.264/AVC intraprediction based on local edge information. Prior to intraprediction, an edge map is created and a local edge direction histogram is then established for each subblock. Based on the distribution of the edge direction histogram, only a small part of intraprediction modes are chosen for RDO calculation. Experimental results show that the fast intraprediction mode decision scheme increases the speed of intracoding significantly with negligible loss of peak signal-to-noise ratio.
ISSN:1051-8215
1558-2205
DOI:10.1109/TCSVT.2005.848356