| 用维纳滤波改善零树编码图象的质量 |
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| 引用本文： | 邓锦全,蔡汉添. 用维纳滤波改善零树编码图象的质量[J]. 电路与系统学报, 2000, 5(4): 70-72 |
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| 作者姓名： | 邓锦全 蔡汉添 |
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| 作者单位： | 华南理工大学,电子与通信工程系,广东,广州,510641 |
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| 摘 要： | 基于零 树小波编码的图象在高压缩比时会产生振铃失真。本文分析了失真的原因，提出采用边沿增强与一维维纳滤波相结合的方法减少失真。实验结果表明，这种方法简单有效，能够提高图象的主观质量与客观指标ＰＳＮＲ。
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| 关 键 词： | 小波变换 零树编码 维纳滤波 图像编码 |
| 文章编号： | 1007-0249(2000)04-0070-03 |
| 修稿时间： | 1999-10-20 |
Improve the Quality of Zero-tree Encoded Images using Wiener Filtering |
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| DENG Jin-quan,CAI Han-tian. Improve the Quality of Zero-tree Encoded Images using Wiener Filtering[J]. Journal of Circuits and Systems, 2000, 5(4): 70-72 |
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| Authors: | DENG Jin-quan CAI Han-tian |
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| Abstract: | Ringing distortion would exist in zero-tree wavelet encoded images with high compression-ratio. The cause leading to the distortion is investigated and a scheme of solution using edge enhancement combined with 1D-Wiener filtering is proposed to reduce the distortion. Experimental results demonstrate that the quality of such images can be improved effectively both in subjective and objective point of view. |
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| Keywords: | Wavelet transform zero-tree encoding image enhancement Weiner filteri |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
