计算机工程与应用 ›› 2012, Vol. 48 ›› Issue (31): 89-92.
• 数据库、信号与信息处理 • 上一篇 下一篇
杨爱萍，张金霞，刘建忠，侯正信
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YANG Aiping, ZHANG Jinxia, LIU Jianzhong, HOU Zhengxin
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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。
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
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.
Key words: filter banks, equal-even length biorthogonal wavelet, edge-symmetric extension, image edge detection
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.
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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