Title
Improving denoising filters by optimal diffusion
Abstract
Kernel based methods have recently been used widely in image denoising. Tuning the parameters of these algorithms directly affects their performance. In this paper, an iterative method is proposed which optimizes the performance of any kernel based denoising algorithm in the mean-squared error (MSE) sense, even with arbitrary parameters. In this work we estimate the MSE in each image patch, and use this estimate to guide the iterative application to a stop, hence leading to improve performance. We propose a new estimator for the risk (i.e. MSE) which is different than the often-employed SURE method. We illustrate that the proposed risk estimate can outperform SURE in many instances.
Year
DOI
Venue
2012
10.1109/ICIP.2012.6467076
Image Processing
Keywords
Field
DocType
filtering theory,image denoising,iterative methods,mean square error methods,MSE,SURE method,denoising filters,image denoising,image patch,iterative method,kernel based denoising algorithm,kernel based methods,mean-squared error method,optimal diffusion,risk estimation,Anisotropic Diffusion,Data-dependent Filtering,Image Denoising,Risk Estimation
Noise reduction,Kernel (linear algebra),Mathematical optimization,Denoising algorithm,Pattern recognition,Computer science,Iterative method,Non-local means,Image denoising,Artificial intelligence,Filtering theory,Estimator
Conference
ISSN
ISBN
Citations 
1522-4880 E-ISBN : 978-1-4673-2532-5
978-1-4673-2532-5
0
PageRank 
References 
Authors
0.34
0
3
Name
Order
Citations
PageRank
Hossein Talebi1373.61
Peyman Milanfar23284155.61
Talebi, H.300.34