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Fast intra-prediction mode selection algorithm for H.264/AVC

Keywords: video coding,intra-prediction,rate distortion optimization(RDO),mode selection

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This paper proposed a fast prediction mode selection algorithm based on measurement of direction prediction mode, by measuring the intra-prediction direction of 4×4 block, it used the correlation between neighboring blocks and neighboring direction prediction mode to predict the intra-frame mode. Experimental results show that compared with the full searching algorithm, this algorithm can save the encoding time up to 40% averagely when guarantee the capability of the rate distortion and the bits rate, and it improves the encoding efficiency tremendously.


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