Mixed Denoising Method Based on Partial Differential Equation and Wiener Filtering
Han Min · Jisuanji gongcheng · 2010
This paper proposes a mixed image denoising method combining wavelet transform with Partial Differential Equation(PDE),the method is denoised by the windows improved Wiener filtering,and is processed by the PDE combined model.Based on the characteristics of the P-M equation,the directed diffusion equation and LLT high-order equation,two weight functions are used to build the PDE combined denoising model.Experimental result shows that the mixed denoising method not only can overcome the drawbacks of three PDE models and Wiener filtering,but also can improve image denoising capacity and edge protection,and it can obtain a better visual effect and enhance efficiency of the algorithm after denoising.