SURE-LET multichannel image denoising: Undecimated wavelet thresholding
Journal
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
ISBN
1424414849
Date Issued
2008-09-16
Author(s)
Luisier, Florian
Abstract
We propose an extension of the recently devised SURE-LET grayscale denoising approach for multichannel images. Assuming additive Gaussian white noise, the unknown linear parameters of a transform-domain pointwise multichannel thresholding are globally optimized by minimizing Stein's unbiased MSE estimate (SURE) in the image-domain. Using the undecimated wavelet transform, we demonstrate the efficiency of this approach for denoising color images by comparing our results with two other state-of-the-art denoising algorithms. ©2008 IEEE.
Subjects
Multichannel image denoising | Multichannel SURE minimization | Multichannel wavelet thresholding
Type
conference paper