| 分形图像编码的误码检测和图像恢复 |
| |
| 引用本文： | 杨守义,罗伟雄,穆晓敏.分形图像编码的误码检测和图像恢复[J].系统工程与电子技术,2002,24(9):9-12. |
| |
| 作者姓名： | 杨守义 罗伟雄 穆晓敏 |
| |
| 作者单位： | 1. 北京理工大学电子工程系,北京,100081
2. 郑州大学电子工程系,河南,郑州,450052 |
| |
| 摘 要： | 对由于传输信道干扰而产生的分形压缩编码数据传输时产生的图像坏块 ,提出了一种检测方法 ,并用遗传算法在该图像中搜索坏块的相似块 ,用相似块来取代坏块 ,从而达到误差掩蔽的效果。仿真结果表明 ,对数据传输中所产生的图像坏块 ,采用所提出的图像坏块检测方法 ,坏块检出率高 ,并且在使用所提出的图像误差掩蔽方法后 ,图像质量有明显改善。
|
| 关 键 词： | 分形图像压缩 图像恢复 遗传算法 |
| 文章编号： | 1001-506X(2002)09-0009-04 |
| 修稿时间： | 2001年9月13日 |
Error Detection and Image Restoration for Fractal Image Compression |
| |
| YANG Shou-yi,LUO Wei-xiong.Error Detection and Image Restoration for Fractal Image Compression[J].System Engineering and Electronics,2002,24(9):9-12. |
| |
| Authors: | YANG Shou-yi LUO Wei-xiong |
| |
| Institution: | YANG Shou-yi1,LUO Wei-xiong2 |
| |
| Abstract: | Fractal image compression data are vulnerable to transmission impairment. Loss of a single bit often results in loss of a whole block and may cause consecutive block losses. To detect these damaged blocks, a method based on the characteristics of the range regions in fractal image compression. Once error indices are detected, a method of restoration by using genetic algorithm (GA) also proposed here to conceals these errors. Simulation results have shown that the detection method proposed is fairly effective and the restoration method can improve image quality greatly. |
| |
| Keywords: | Fractal image compression Image restoration Genetic algorithm |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
