| 差信道环境下简单有效的图像传输方法 |
| |
| 引用本文： | 周霆,许明,陈东侠,余轮.差信道环境下简单有效的图像传输方法[J].上海大学学报(英文版),2008,12(2):141-145. |
| |
| 作者姓名： | 周霆 许明 陈东侠 余轮 |
| |
| 作者单位： | ZHOU Ting（College of Information Engineering, Fuzhou Universtiy, Fuzhou 350002, P. R. China）
XU Ming（College of Information Engineering, Fuzhou Universtiy, Fuzhou 350002, P. R. China）
CHEN Dong-xia（College of Information Engineering, Fuzhou Universtiy, Fuzhou 350002, P. R. China）
YU Lun（College of Information Engineering, Fuzhou Universtiy, Fuzhou 350002, P. R. China） |
| |
| 摘 要： |
|
| 关 键 词： | constrained Viterbi algorithm (C-VA) known bits set partitioning in hierarchical trees (SPIHT) image trans- mission. 信道环境 图像 传输方法 channel condition image transmission efficient method Experimental results show resilient ability conventional best images thought decoder image sequence SPIHT Known bits |
| 收稿时间： | 2006-09-18 |
| 修稿时间： | 2006年9月18日 |
A simple and efficient method for image transmission over inferior channel |
| |
| Ting Zhou,Ming Xu,Dong-xia Chen,Lun Yu.A simple and efficient method for image transmission over inferior channel[J].Journal of Shanghai University(English Edition),2008,12(2):141-145. |
| |
| Authors: | Ting Zhou Ming Xu Dong-xia Chen Lun Yu |
| |
| Institution: | College of Information Engineering, Fuzhou Universtiy, Fuzhou 350002, P. R. China |
| |
| Abstract: | The constrained Viterbi algorithm (C-VA) makes use of some prior reliable information to reduce complexity andimprove performance of Viterbi algorithm (VA). However it can only be used in the concatenate code scheme because thedetection result of cyclic redundancy check code (CRC) is exploited to provide reliable information. In this paper, a differentway is proposed to provide reliable information for C-VA, which is possible to be used in simple codec. Known bits were addedto the set partitioning in hierarchical trees (SPIHT) coded image sequence periodically and directly. They were thought to bereliable information for C-VA in the decoder. Experimental results show that the proposed scheme can obtain much bettererror resilient ability compared with conventional VA under the extremely inferior channel condition if the best desired qualityof reconstructed images can be sacrificed. |
| |
| Keywords: | constrained Viterbi algorithm (C-VA) known bits set partitioning in hierarchical trees (SPIHT) image trans- mission |
| 本文献已被 维普 万方数据 SpringerLink 等数据库收录！ |
| 点击此处可从《上海大学学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《上海大学学报(英文版)》下载免费的PDF全文 |
