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2010

Is Denoising Dead?

8 years 7 months ago
Is Denoising Dead?
—Image denoising has been a well studied problem in the field of image processing. Yet researchers continue to focus attention on it to better the current state-of-the-art. Recently proposed methods take different approaches to the problem and yet their denoising performances are comparable. A pertinent question then to ask is whether there is a theoretical limit to denoising performance and, more importantly, are we there yet? As camera manufacturers continue to pack increasing numbers of pixels per unit area, an increase in noise sensitivity manifests itself in the form of a noisier image. We study the performance bounds for the image denoising problem. Our work in this paper estimates a lower bound on the mean squared error of the denoised result and compares the performance of current state-of-the-art denoising methods with this bound. We show that despite the phenomenal recent progress in the quality of denoising algorithms, some room for improvement still remains for a wide cl...
Priyam Chatterjee, Peyman Milanfar
Added 31 Jan 2011
Updated 31 Jan 2011
Type Journal
Year 2010
Where TIP
Authors Priyam Chatterjee, Peyman Milanfar
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