Implementation of Multiple Macroblock Mode Overlapped Block Motion Compensation for Wavelet Video Coding

被引：0
|
作者：
Jiazhong Chen
Jun Xu
Dong Xiang
Chunjing Geng
机构：
[1] College of Computer Science and Technology,
[2] Huazhong University of Science and Technology,undefined
[3] Department of Electrical and Computer Engineering,undefined
[4] University of Florida,undefined
[5] P.O. Box 116130,undefined
[6] School of Computer Science and Technology,undefined
[7] Wuhan University of Technology,undefined
来源：
Circuits, Systems & Signal Processing | 2007年 / 26卷
关键词：
Discrete Cosine Transform; Discrete Wavelet Transform; Motion Estimation; Mode Decision; Neighboring Block;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
This paper proposes a hybrid video coding framework based on discrete wavelet transform and multiple macroblock mode overlapped block motion compensation (OBMC). Studying the neighborhood in multiple macroblock mode situations, we set rules for the selection of neighboring blocks in OBMC. Based on experimental results, the raised cosine window and the best neighboring blocks are chosen for their outstanding performance. The multiple macroblock mode OBMC has a good performance in reducing the blocking effect, and the coding efficiency is improved. The proposed scheme can provide a 1 dB coding gain compared to MPEG-4, and its performance is close to the latest H.264 standard. From a subjective point of view, the new framework is also better than the standards.
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页码：55 / 67
页数：12
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