| 选取小波函数的方法研究 |
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| 引用本文： | 许罗鹏,陈文静,赵玥,蔡义祥. 选取小波函数的方法研究[J]. 四川大学学报(自然科学版), 2010, 47(4): 785-790. DOI: 10.3969/j.issn.0490-6756.2010.04.020 |
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| 作者姓名： | 许罗鹏 陈文静 赵玥 蔡义祥 |
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| 作者单位： | 四川大学电子信息学院,成都,610064 |
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| 基金项目： | 国家自然科学基金(60677028) |
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| 摘 要： | 选取几种不同的小波函数利用连续小波变换（CWT）对同一图像进行处理,比较不同小波函数的小波脊系数幅值信息和恢复图像的效果,得出可以参考小波脊系数幅值表现的方法来选取合适的小波函数的结论.计算机模拟和实验也证实了该方法的正确性.
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| 关 键 词： | 光学测量 小波函数 小波变换轮廓术 小波脊 条纹相位 |
Study on selecting wavelet function |
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| XU Luo-Peng,CHEN Wen-Jing,ZHAO Yue,CAI Yi-Xiang. Study on selecting wavelet function[J]. Journal of Sichuan University (Natural Science Edition), 2010, 47(4): 785-790. DOI: 10.3969/j.issn.0490-6756.2010.04.020 |
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| Authors: | XU Luo-Peng CHEN Wen-Jing ZHAO Yue CAI Yi-Xiang |
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| Affiliation: | School of Electronics and Information Engineering,Sichuan University;School of Electronics and Information Engineering,Sichuan University;School of Electronics and Information Engineering,Sichuan University;School of Electronics and Information Engineering,Sichuan University |
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| Abstract: | In this paper,we compare the amplitude of wavelet coefficients at wavelet ridge position,the appearance of reconstructed images by using different wavelet functions in continuous wavelet transform(CWT) profilometry.A conclusion can be reached that we can choose the right wavelet by using the appearance of the amplitude of wavelet coefficients.This method has been validated by several simulations and experiments. |
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| Keywords: | optical measurement wavelet function wavelet transform profilometry wavelet ridge fringe phase |
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