Hybrid Wiener and partial differential equations filter for biomedical image denoising
Salim Lahmiri, Mounir Boukadoum · 2016
We present a novel biomedical image denoising system that combines Wiener and partial differential equation (PDE) filtering to form a sequential hybrid filter. The local Wiener filter is employed to remove additive Gaussian noise in a first step; then, the PDE filter is applied to the resulting filtered image for further noise removal while preserving image edges. Experimental results showed the superiority of the proposed system over using either of the local Wiener filter or PDE filter alone.