EFFICIENT CODING MODE DECISION IN MPEG-4 PART-10 AVC/H.264 MAIN PROFILE (MP-P8)

Author(s) : Inchoon Choi (Sungkyunkwan University, Korea) Jeyun Lee (Sungkyunkwan University, Korea) Byeungwoo Jeon (Sungkyunkwan University, Korea)

Abstract : MPEG-4 Part-10 AVC/H.264 provides much improved coding efficiency. The powerful adaptive motion compensation in H.264 employing variable block sizes investigates all possible coding modes of a block to decide the best coding mode. This achieves highest possible coding efficiency, but it only comes at much higher computational complexity. In this paper, we propose two new techniques ?‘early SKIP mode decision in P- and B-slices?and ‘selective intra mode decision?- which can significantly reduce the computational complexity. Simulation results verify that the proposed method makes it possible to reduce the encoding time by about 66% without any perceivable loss in coding rate and quality.

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