A fast intra mode decision algorithm for H.264/AVC is proposed in this paper. The objective is to reduce the encoder complexity without significant rate-distortion performance degradation. Three methods are adopted: 1) the block size is selected between 4×4 block and 16×16 block based on the smoothness and correlation information. 2) A characteristic is also exploited, which is using to decide whether skip the process of mode decision for 4×4 block. 3) For other 4×4 blocks, based on the correlation and SATD information, some impossible modes are excluded. Experimental results show that the proposed algorithm can drastically reduce the encoding time with only little quality degradation.
Fast Intra Mode Decision Algorithm for H.264/AVC
2008 Congress on Image and Signal Processing ; 1 ; 570-574
2008-05-01
400287 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
A Novel Fast Intra-Mode Decision Algorithm for H.264/AVC
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