Study on UMHexagonS Algorithm based on H.264
Zhengping Zhang · Communications technology · 2012
Motion estimation is a key technology in video compression field.H.264 Encoder,with the adoption of high-precision motion vector,has a rapid increase in computation complexity,and ME costs about 80% of the whole encoding time.The proposed algorithm,based on UMHexagonS algorithm,is optimized in such three aspects as the dynamic search range selection,full-search and big hexagon search mode,thus to save ME time effectively without quality loss.Experiment results show this algorithm can save about 12% of Me time as compared to UMHexagonS algorithm while enhance the real-time performance of the encoder without any decline of reconstructed picture quality and bitrate.