Fast block-size partitioning using empirical rate-distortion models for MPEG-2 to H.264/AVC transcoding
We present an efficient H.264/AVC block-size partitioning prediction method, which is based on our proposed empirical rate and distortion models. Compared to other state-of-the-art transcoding methods, and for the same rate-distortion performance, our proposed algorithm requires the least computational complexity, reaching a 73 % reduction in variable block-size motion estimation for SDTV sequences, and 71% reduction for CIF sequences.