Research Article
Laplacian-Based H.264 Intra-Prediction Mode Decision
@INPROCEEDINGS{10.1109/ChinaCom.2012.6417561, author={Chi-Chou Kao and Yen-Tai Lai and Chao-Feng Tseng}, title={Laplacian-Based H.264 Intra-Prediction Mode Decision}, proceedings={International Workshop on Intelligent Multimedia Computing and Communications}, publisher={IEEE}, proceedings_a={IWIMCC}, year={2012}, month={10}, keywords={h264 laplacian intra mode video coding}, doi={10.1109/ChinaCom.2012.6417561} }- Chi-Chou Kao
Yen-Tai Lai
Chao-Feng Tseng
Year: 2012
Laplacian-Based H.264 Intra-Prediction Mode Decision
IWIMCC
IEEE
DOI: 10.1109/ChinaCom.2012.6417561
Abstract
Compared with the conventional video coding standards, H.264 provide new coding techniques, such as Multi-picture inter-picture prediction, Variable block-size, Quarter-pixel precision for motion compensation, intra prediction, Context-adaptive variable-length coding and Context-adaptive binary arithmetic coding. Intra coding is used for reducing the spatial redundancy in video coding. H.264 supports several MB (Macroblock) predictions for Intra coding such as luma block four 1616 modes, nine 44 modes and chroma block four modes, which significantly improve Intra coding efficiency, but increase the encoding complexity. This paper presents an approach to the intra mode decision problem. Based on Laplacian, this approach detects edges and then selects the best mode for the block. This method can shorten the time to choose a mode and reduce the encoding time as well.