Efficient zero-block mode decision algorithm for high bit-rate coding in H.264/AVC

This paper proposes an efficient zero-block inter mode decision algorithm for high bit-rate coding in H.264/AVC, to improve computation efficiency of the previous algorithm [1]. In the proposed algorithm we suggest using zero-blocks of both 8×8 and 4×4 DCT coefficients to describe video sequences in detail, including global and local stationary characteristics. The experimental results reveal that significant computation improvement (up to 20% reduction) for high bit-rate coding can be achieved over the previous algorithm.