外文翻译--基于相邻帧的差别预测的多分辨率小波域运动估计和补偿

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1、 文献翻译 基于 相邻 帧的 差别 预测的多分辨率小波域运动估计和补偿 院（系）名称 信息工程学院 专业名称 计算机科学与技术 学生姓名 指导教师 2011 年 3 月 26 日 附：英文原文 Multi-resolution Motion Estimation and Compensation based on Adjacent Prediction of Frame Difference in Wavelet Domain Tang Guowei Abstract： Aiming at the higher bit rate occupation of motion vector enco

2、ding and more time load of full searching strategies, a multi-resolution motion estimation and compensation algorithm based on adjacent prediction of frame difference was proposed. Differential motion detection was employed to image sequences and proper threshold was ad opted to identify the connect

3、ed region. Then the motion region was extracted to carry out motion estimation and motion compensation on it The experiment results show that the encoding efficiency of motion vector is promoted, the complexity of motion estimation is reduced and the quality of the reconstruction image at the same b

4、it-rate as Multi-Resolution Motion Estimation(MRME)is improved. Key words: Motion estimation; Motion compensation; Multi-resolution analysis; Video coding I. Introduction For the excellent properties of time-frequency localization, wavelet analysis is widely used in the field of image/video coding.

5、As to image sequences, motion estimation and motion compensation can effectively reduce the time-relativity and improve the encoding efficiency. But the traditional motion compensation wavelet coding, taking the structure of motion estimation plus intra-frame still image encoding, can not make full

6、use of the advantages of the inherent multi resolution characteristics of wavelet decomposition In 1992 Zhang and S.Zafar proposed variable block Multi-Resolution Motion Estimation MRME algorithm for video compression which 1aid the foundation for motion estimation and compensation in wavelet domain. By using comparatively small searching window and matching block, this method can reduce the amount of operation effectively, get rid of the blocking ar