| 基于区间双正交小波的多尺度边缘提取 |
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| 引用本文： | 杨维,苏万力,宋国乡.基于区间双正交小波的多尺度边缘提取[J].西安电子科技大学学报,2004,31(4):630-633. |
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| 作者姓名： | 杨维 苏万力 宋国乡 |
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| 作者单位： | [1]西安电子科技大学理学院，陕西西安710071 [2]西安电子科技大学计算机学院，陕西西安710071 |
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| 基金项目： | 国家自然科学基金资助项目(10361003) |
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| 摘 要： | 对区间双正交小波所具有的多尺度边缘提取能力进行了理论分析，用消失矩N=N^-=3的0，1]区间上的双正交滤波器对图像进行了小波变换，提出了沿幅角方向确定局部极大值的小波边缘检测算法．仿真结果表明，区间双正交小波比Daubechies正交小波和双正交小波更适宜图像的边缘检测．
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| 关 键 词： | 区间双正交小波 多尺度边缘检测 小波变换 |
| 文章编号： | 1001-2400(2004)04-0630-04 |
Multi-scale edge detection of the image based on the interval biorthogonal wavelet |
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| YANG Wei.Multi-scale edge detection of the image based on the interval biorthogonal wavelet[J].Journal of Xidian University,2004,31(4):630-633. |
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| Authors: | YANG Wei |
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| Affiliation: | (1. School of Science, Xidian Univ., Xi'an 710071, China;2. ept. of Computation Science and Mathematics, Guilin Univ. of Electronic Technology, Guilin 541004, China;3. School of Computer Science and Technology, Xidian Univ., Xi'an 710071, China) |
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| Abstract: | The ability of the interval biorthogonal wavelet to detect the multi-scale edge is theoretically analyzed. The wavelet transform of the image is performed by the biorthogonal wavelet with the vanishing moments (N=)(=)3 in the interval 0,1]. Then a multi-scale edge detection algorithm of the wavlet is proposed to obtain the local maxima along the diretion given by the angle image. Simulatoin results show that the biorthogonal wavelet in the interval is more suitable for the edge detection of images than both Daubechies' biorthogonal wavelet and orthogonal wavelet. |
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| Keywords: | interval biorthogonal wavelet multi-scale edge detection wavelet transform |
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