A Self-adaptive And Fast Motion Estimation Search Method For H.264/AVC

In this paper, a fast integer pixel variable block ME algorithm based on JVT which accepted UMHexagonS algorithm is presented for H.264/AVC encoder. With special considerations on the motion activity of the current macro-block, several adaptive search strategies have been utilized to significantly improve the video coding performance. The simulation results shows that the proposed algorithm maintains an unnoticeable quality loss in terms of PSNR on average compared with FS and reduces nearly 20% ME time compared with UMHexagonS while maintaining coding efficiency.

A Fast Motion Estimation Algorithm for H.264

To reduce computational complexity and maintain the image quality, an integer pixel fast motion estimation algorithm is proposed in this paper. Combining the characters of the UMHexagonS algorithm and the EPZS algorithm, the proposed algorithm selects various searching patterns according to the motion types of the image and introduces a early-termination algorithm. Experimental results demonstrate that the proposed algorithm has less ME time than FS, UMHexagonS and EPZS algorithm with essentially the same PSNR.