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Journal Article Enhanced Inter Mode Decision Based on Contextual Prediction for P-Slices in H.264/AVC Video Coding
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Authors
Byung Gyu Kim, Suk Kyu Song
Issue Date
2006-08
Citation
ETRI Journal, v.28, no.4, pp.425-434
ISSN
1225-6463
Publisher
한국전자통신연구원 (ETRI)
Language
English
Type
Journal Article
DOI
https://dx.doi.org/10.4218/etrij.06.0105.0189
Abstract
We propose a fast macroblock mode prediction and decision algorithm based on contextual information for Pslices in the H.264/AVC video standard, in which the mode prediction part is composed of intra and inter modes. There are nine 4×4 and four 16×16 modes in the intra mode prediction, and seven block types exist for the best coding gain based on rate-distortion optimization. This scheme gives rise to exhaustive computations (search) in the coding procedure. To overcome this problem, a fast inter mode prediction scheme is applied that uses contextual mode information for P-slices. We verify the performance of the proposed scheme through a comparative analysis of experimental results. The suggested mode search procedure increased more than 57% in speed compared to a full mode search and more than 20% compared to the other methods.
KSP Keywords
Coding Gain, Comparative analysis, Contextual information, Contextual prediction, Decision algorithm, H.264/AVC video, Inter Mode Decision, Prediction scheme, Rate-Distortion Optimization(RDO), Video coding, intra mode