Fast Decision of Block Size, Prediction Mode, and Intra Block for H.264 Intra Prediction

The spatial-domain intra prediction scheme of H.264 has high computational complexity, especially for the High Profile as it incorporates the additional intra 8 × 8 prediction mode. To address this issue, we explore the hierarchy of H.264 mode decision process in this paper and adopt an approach tha...

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Vydané v:IEEE transactions on circuits and systems for video technology Ročník 20; číslo 8; s. 1122 - 1132
Hlavní autori: Yi-Hsin Huang, Tao-Sheng Ou, Chen, H H
Médium: Journal Article
Jazyk:English
Vydavateľské údaje: New York IEEE 01.08.2010
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:
Algorithms
Automatic voltage control
Blocking
Circuits
Coding
Communication standards
Communications technology
Complexity
Computation
Computational complexity
H.264/advanced video coding (AVC)
Hierarchies
Information filtering
Information filters
intra prediction
Prediction algorithms
Rate-distortion
rate-distortion optimization
Video coding
ISSN:1051-8215, 1558-2205
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Shrnutí:The spatial-domain intra prediction scheme of H.264 has high computational complexity, especially for the High Profile as it incorporates the additional intra 8 × 8 prediction mode. To address this issue, we explore the hierarchy of H.264 mode decision process in this paper and adopt an approach that is in synchrony with the mode decision hierarchy. In particular, we propose a variance-based algorithm for block size decision, an improved filter-based algorithm for prediction mode decision using contextual information, and a selection algorithm for intra block decision that exploits the relation between the rate-distortion characteristic and the best coding type. Performance comparison is provided to show the improvement of the proposed algorithms over previous methods.
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ISSN:1051-8215
1558-2205
DOI:10.1109/TCSVT.2010.2057018