序列图像的小波域运动估计和补偿技术研究

Research on the Techniques of Multi-Resolution Motion Estimation and Compensation in Wavelet Field Based on Head-shoulder Sequence

针对小波分解域的可变块多分辨率运动估计/补偿(MRME)算法存在运动矢量编码占用码率较高,使用全搜索进行运动估值耗费时间多等缺点,提出对序列图像中运动区域进行运动估计和补偿,在有效地降低了运动估值的复杂度的同时,进一步提高了运动矢量的编码效率,同时在相同码率下,使恢复图像的质量得到提高。

According to wavelet transform domain variable block multi-resolution motion estimation/compensation （MRME） algorithm has some shortcomings, such as the higher occupancy rate of motion vector encoding, use the search motion estimation by the time-consuming. Therefore author proposed that the sequence of image campaigns region motion estimation and compensation, in a campaign to reduce the complexity of the valuation at the same time, further enhance the motion vector coding efficiency, while at the same rate, to restore the quality of the image has been enhanced.