选取小波函数的方法研究

Study on selecting wavelet function

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.

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.