A Fast Motion Estimation Algorithm Based on H.264/AVC
Liang Liang-li · Science Technology and Engineering · 2009
Block based motion estimation(ME) is the most time-consuming component in an H.264 video encoder.An improved integer pel motion estimation algorithm based is proposed on UMHexagonS algorithm to solve the insufficiency of the original algorithm. The algorithm improves the search pattern and search layer of UMHexagonS。 These changes reduce search points greatly of the integer pel motion estimation,and enhance the efficience of motion estimation. The experiment results show that the method can reduce more than 20% search points compared to UMHexagonS algorithm with minimal loss in bitrate. The method is more suitable in real-time video encoding.