

Therefore, the coding modes of neighboring blocks would need to be computed first before that of the current block can be determined. It is because the mode decision of the current block would depend on the reconstructed data of the neighboring blocks. Achieving efficient GPU-based intra mode decision, however, could be non-trivial. In this paper, we investigate how multi-core Graphics Processing Units (GPUs) can be efficiently utilized to undertake the task of RD optimized intra mode selection in AVS and H.264 video encoding. However, it would incur considerable increase in encoding complexity.

Rate-distortion (RD) optimized intra-prediction mode selection can lead to significant improvement in coding efficiency in intra-frame encoding.
