| 一种改进的基于小波变换模极大值的边缘检测方法 |
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| 引用本文： | 高克芳,杨勇. 一种改进的基于小波变换模极大值的边缘检测方法[J]. 福建农林大学学报(自然科学版), 2009, 38(4) |
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| 作者姓名： | 高克芳 杨勇 |
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| 作者单位： | 1. 福建农林大学机电工程学院,福建,福州,350002
2. 福州大学物理与信息工程学院,福建,福州,350002 |
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| 基金项目： | 福建省自然科学基金资助项目(2008J0181) |
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| 摘 要： | 一种改进的基于小波变换模极大值的边缘检测方法包含如下2个步骤:(1)求出边缘及噪声点的局部极大值;(2)利用边缘点与噪声点具有不同小波变换模极大值的特点,对局部极大值进行二次判别,从而实现噪声与边缘的分离.实例验证结果表明,该方法能很好地解决高精度定位与强去噪能力之间的矛盾.
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| 关 键 词： | 小波变换 边缘检测 模极大值 |
The improved method for image edge detection based on wavelet transform modulus maxima |
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| GAO Ke-fang,YANG Yong. The improved method for image edge detection based on wavelet transform modulus maxima[J]. Journal of Fujian Agricultural and Forestry University, 2009, 38(4) |
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| Authors: | GAO Ke-fang YANG Yong |
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| Affiliation: | 1.College of Mechanical and Electrical Engineering;Fujian Agriculture and Forestry University;Fuzhou;Fujian 350002;China;2.College of Physics and Information Engineering;Fuzhou University;China |
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| Abstract: | The improved method for image edge detection based on wavelet transform modulus maxima included following steps: wavelet transform was adopted to compute local modulus maximum of edge and noise;based on the differences between wavelet transforms of edge and noise,the separation of noise and edge was achieved by detecting local modulus maximum with quadratic discriminant method.Simulation results showed that the inconsistency between high precision localization and high denoise ability existing in traditiona... |
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| Keywords: | wavelet transform edge detection modulus maximum |
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