Total Variational Denoising Using Improved Adaptive Fidelity Term
Denoising is an important part of digital image processing.Adaptive Fidelity term Total Variation (AFTV)method can effectively remove the noise and can preserve the edge and detail information of the image.However, noise variance should be given in the method, and the mothed is sensitive to noise, which will lead to unsatisfactory denoising results in edges of image.Therefore, an improved Adaptive Fidelity Total Variation algorithm is proposed.The method first uses the local variance of the noise image to initially estimate the confidence parameters, then the optimized parameters are obtained with anisotropic convolution.The experiments with several images demonstrate that the proposed method is superior to AFTV method at different noise levels.
image denoising total variational model adaptive fidelity term local power
Huang Wei Wang Chen Bu Min
School of Information and Communication Engineering,Shanghai University 149 Yanchang Road,Shanghai,China
国际会议
哈尔滨
英文
820-824
2013-08-16(万方平台首次上网日期,不代表论文的发表时间)