| JPEG2000图像无线传输统计性能分析与误码保护研究 |
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| 引用本文： | 赵刚,何建华,杨宗凯,程文青,张磊.JPEG2000图像无线传输统计性能分析与误码保护研究[J].小型微型计算机系统,2006,27(2):272-275. |
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| 作者姓名： | 赵刚 何建华 杨宗凯 程文青 张磊 |
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| 作者单位： | 华中科技大学,电信系,湖北,武汉,430074 |
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| 摘 要： | JPEG2000标准是最新的图像压缩标准．首先分析了JPEG2000标准中的抗误码方法，进而提出了一个分析模型来预测在无线信道上传输的JPEG2000编码图像重建质量，并通过仿真加以验证．此分析模型可用来在无线基站上为JPEG2000编码图像的传输设计高效的非均匀误码保护方案．基于该分析模型，定义了一个效用函数来在图像重建质量和传输开销之间进行折中。以决定采用何种非均匀误码保护方案。达到最佳的传输质量．
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| 关 键 词： | JPEG2000标准 图像质量预测 非均匀误码保护 无线信道 |
| 文章编号： | 1000-1220（2006）02-0272-04 |
| 收稿时间： | 2004-10-09 |
| 修稿时间： | 2004-10-09 |
Research on Analysis of Statistical Performance of JPEG2000 Encoded Image over Wireless Channel and Error Protection Schema |
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| ZHAO Gang,HE Jian-hua,YANG Zong-kai,CHEN Wen-qing,ZHANG Lei.Research on Analysis of Statistical Performance of JPEG2000 Encoded Image over Wireless Channel and Error Protection Schema[J].Mini-micro Systems,2006,27(2):272-275. |
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| Authors: | ZHAO Gang HE Jian-hua YANG Zong-kai CHEN Wen-qing ZHANG Lei |
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| Affiliation: | Department of Electronics and In Information. Huazhong University of Science and Technology, Wuhan 430074. China |
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| Abstract: | JPEG2000 is a new image standard. In this paper, the performance of error resilience tools in JPEG2000 is analyzed at first, then an analytical model to estimate the quality of JPEG2000 encoded image transmitted over wireless channel is presented. The effectiveness of the analytical model is validated by simulation results. Furthermore, analytical model is utilized by the base station to design efficient unequally error protection (UEP) schemas for JPEG2000 image transmission. With the analytical model, a utility function is defined to make a tradeoff between the image quality and the cost for transmitting the image over wireless channel, and chose which kind of UEP schemas to employ to reach the optimal image transmission quality. |
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| Keywords: | JPEG2000 standard image quality estimation unequal error protection(UEP) wireless channel |
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