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Fast Mode Decision for Intra Prediction in H.264

In H.264 video coding standard, in order to increase the coding efficiency, several new techniques such as spatial intra prediction, integer transformation have been introduced. However these also increase the computational complexity drastically. In this paper, we propose a new fast intra prediction algorithm to be used instead of the full search algorithm to choose the best mode for spatial intra prediction. Experimental results show that, our algorithm achieves 52% computation reduction on the average while maintaining similar PSNR and an average bitrate increase of 1.5%