| 紧支撑等偶长度双正交小波滤波器组设计 |
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| 引用本文： | 杨爱萍,张金霞,刘建忠,侯正信. 紧支撑等偶长度双正交小波滤波器组设计[J]. 计算机工程与应用, 2012, 48(31): 89-92 |
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| 作者姓名： | 杨爱萍 张金霞 刘建忠 侯正信 |
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| 作者单位： | 天津大学 电子信息工程学院，天津 300072 |
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| 基金项目： | 国家自然科学基金（No.61002027）. |
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| 摘 要： | 提出了一类特殊的双正交小波滤波器组，即等偶长度双正交小波滤波器组；推导其设计公式，给出详细的设计步骤，分析这类小波的特殊性质，给出了等偶Bior 5.3滤波器组的设计实例。将这一类滤波器运用到图像的边缘检测中，表现出了优异的边缘检测性能。
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| 关 键 词： | 滤波器组 等偶长度双正交小波 边界对称延拓 边缘检测 |
Design for equal-even length biorthogonal wavelet filter banks |
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| YANG Aiping , ZHANG Jinxia , LIU Jianzhong , HOU Zhengxin. Design for equal-even length biorthogonal wavelet filter banks[J]. Computer Engineering and Applications, 2012, 48(31): 89-92 |
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| Authors: | YANG Aiping ZHANG Jinxia LIU Jianzhong HOU Zhengxin |
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| Affiliation: | School of Electronic Information Engineering, Tianjin University, Tianjin 300072, China |
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| Abstract: | This paper presents a new class of biorthogonal wavelet filter banks, named equal-even length biorthogonal wavelet filter banks. Based on formula deduced, detailed designing steps and special characteristics are studied. It also gives the design for equal-even length Bior 5.3 as an example. The paper applies this kind of wavelet into image edge detection, and shows that the proposed wavelets have better performance in edge detection. |
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| Keywords: | filter banks equal-even length biorthogonal wavelet edge-symmetric extension image edge detection |
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