Sigmoid shrinkage for BM3D denoising algorithm

• Published in: 2010 IEEE International Workshop on Multimedia Signal Processing pp. 423 - 426
• Main Authors: Poderico, M, Parrilli, S, Poggi, G, Verdoliva, L
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.10.2010
• Subjects: Amplitude modulation; Image denoising; Noise reduction; PSNR; Three dimensional displays; Wavelet transforms

In this work we propose a modified version of the BM3D algorithm recently introduced by Dabov et al. for the denoising of images corrupted by additive white Gaussian noise. The original technique performs a multipoint filtering, where the nonlocal approach is combined with the wavelet shrinkage of a...