Multi-resolution motion estimation and compensation based on adjacent prediction of frame difference in wavelet domain |
| |
Authors: | Guowei Tang Guochang Gu |
| |
Affiliation: | 1. College of Computer and Information Technology,Daqing Petroleum Institute,Daqing 163318,China;College of Computer Science and Technology,Harbin Engineering University,Harbin 150001,China 2. College of Computer Science and Technology,Harbin Engineering University,Harbin 150001,China |
| |
Abstract: | Aiming at the higher bit-rate occupation of motion vector encoding 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 adopted to identify the connected 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 es timation is reduced and the quality of the reconstruction image at the same bit-rate as Multi-Reso lution Motion Estimation (MRME) is improved. |
| |
Keywords: | Wavelet transforms Motion estimation Motion compensation Multi-resolution analysis Video coding |
本文献已被 CNKI 维普 万方数据 SpringerLink 等数据库收录! |
| 点击此处可从《电子科学学刊(英文版)》浏览原始摘要信息 |
|
点击此处可从《电子科学学刊(英文版)》下载全文 |
|