A novel dominant edge strength algorithm for intra prediction in H.264/AVC encoders

Jang Ting Chen, Jia Ching Wang, Jhing Fa Wang, An Chao Tsai, Anand Paul

研究成果: 書貢獻/報告類型會議論文篇章同行評審

2 引文 斯高帕斯(Scopus)

摘要

This paper presents a fast mode decision algorithm for H.264 intra prediction based on dominant edge strength (DES). In H.264 intra prediction, the computation-extensive rate distortion optimization (RDO) technique with full intra mode search is used to select the best mode for each macroblock. To reduce the computational load in mode decision, the DES which is corresponding to a decision mode is detected first. In accordance with the detected dominant edge, a subset of the prediction modes is then chosen for RDO calculation. The proposed algorithm only searches 3 modes instead of 9 for the 4×4 luma blocks. As for the 16×16 or 8×8 chroma blocks, instead of 4 modes, only 2 modes are required to be searched. Experimental results revealed that the computation time of the proposed fast intra prediction algorithm is averagely reduced to 30% of the full search method with slight PSNR degradation.

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主出版物標題25th PCS Proceedings
主出版物子標題Picture Coding Symposium 2006, PCS2006
出版狀態已出版 - 2006
事件25th PCS: Picture Coding Symposium 2006, PCS2006 - Beijing, China
持續時間: 24 4月 200626 4月 2006

出版系列

名字25th PCS Proceedings: Picture Coding Symposium 2006, PCS2006
2006

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???event.eventtypes.event.conference???25th PCS: Picture Coding Symposium 2006, PCS2006
國家/地區China
城市Beijing
期間24/04/0626/04/06

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