You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither SPIE nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the SPIE website.
27 February 2015Blind deconvolution of images with model discrepancies using maximum a posteriori estimation with heavy-tailed priors
Single image blind deconvolution aims to estimate the unknown blur from a single observed blurred image and recover the original sharp image. Such task is severely ill-posed and typical approaches involve some heuristic or other steps without clear mathematical explanation to arrive at an acceptable solution. We show that a straight- forward maximum a posteriori estimation incorporating sparse priors and mechanism to deal with boundary artifacts, combined with an efficient numerical method can produce results which compete with or outperform much more complicated state-of-the-art methods. Our method is naturally extended to deal with overexposure in low-light photography, where linear blurring model is violated.
Jan Kotera andFilip Šroubek
"Blind deconvolution of images with model discrepancies using maximum a posteriori estimation with heavy-tailed priors", Proc. SPIE 9404, Digital Photography XI, 94040B (27 February 2015); https://doi.org/10.1117/12.2077158
The alert did not successfully save. Please try again later.
Jan Kotera, Filip Šroubek, "Blind deconvolution of images with model discrepancies using maximum a posteriori estimation with heavy-tailed priors," Proc. SPIE 9404, Digital Photography XI, 94040B (27 February 2015); https://doi.org/10.1117/12.2077158