基于提升小波构造在图像去噪的应用研究

In image processing, the lifting scheme based on discrete wavelet transform is simple in operation than the traditional convolution algorithm, real-time characteristics is good easy to realize, so it has been adopted by new image de-noise. The lifting scheme and realization algorithms of D4 wavelets in image de-noise have been introduced. This method is based on lifting scheme, the initial set of finite biorthogonal filters is followed by lifting and dual lifting, and different lifting operator and dual lifting operator are obtained to construct new wavelet with particular properties. The experimental results and data analysis show that it is effective for the lifting scheme with soft throsholding algorithm in de-noise process, it is better than other wavelet methods.