Turning a denoiser into a super-resolver using plug and play priors

A Brifman, Y Romano, M Elad - 2016 IEEE International …, 2016 - ieeexplore.ieee.org
A Brifman, Y Romano, M Elad
2016 IEEE International Conference on Image Processing (ICIP), 2016ieeexplore.ieee.org
Denoising and Super-Resolution are two inverse problems that have been extensively
studied. Over the years, these two tasks were treated as two distinct problems that deserve a
different algorithmic solution. In this paper we wish to exploit the recently introduced Plug-
and-Play Prior (PPP) approach to connect between the two. Using the PPP, we turn leading
denoisers into super-resolution solvers. As a case-study we demonstrate this on the NCSR
algorithm, which has two variants: one for denoising and one for superresolution. We show …
Denoising and Super-Resolution are two inverse problems that have been extensively studied. Over the years, these two tasks were treated as two distinct problems that deserve a different algorithmic solution. In this paper we wish to exploit the recently introduced Plug-and-Play Prior (PPP) approach to connect between the two. Using the PPP, we turn leading denoisers into super-resolution solvers. As a case-study we demonstrate this on the NCSR algorithm, which has two variants: one for denoising and one for superresolution. We show that by using the NCSR denoiser, one can get equal or even better results when compared with the NCSR super-resolution.
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