Results 31 to 40 of about 441,411 (171)

Reference-Based Multi-Level Features Fusion Deblurring Network for Optical Remote Sensing Images

open access: yesRemote Sensing, 2022
Blind image deblurring is a long-standing challenge in remote sensing image restoration tasks. It aims to recover a latent sharp image from a blurry image while the blur kernel is unknown.
Zhiyuan Li   +4 more
doaj   +1 more source

Variational semi-blind sparse deconvolution with orthogonal kernel bases and its application to MRFM [PDF]

open access: yes, 2014
We present a variational Bayesian method of joint image reconstruction and point spread function (PSF) estimation when the PSF of the imaging device is only partially known.
Se Un Parka   +5 more
core   +1 more source

Blind Deblurring Using Internal Patch Recurrence [PDF]

open access: yes, 2014
. Recurrence of small image patches across different scales of a natural image has been previously used for solving ill-posed problems (e.g., superresolution from a single image).
Tomer Michaeli, Michal Irani
core   +1 more source

Deep Regressor Networks for Blind Image Deblurring

open access: yes, 2021
Image restoration concerns mainly smoothing noise and deblurring images that were corrupted either during acquisition or transmission. Since traditional deconvolution filters are highly dependent on specific kernels or prior knowledge to guide the ...
Rafael G. Pires   +7 more
core   +1 more source

Spectral Norm Regularization for Blind Image Deblurring

open access: yes, 2021
Blind image deblurring is a well-known ill-posed inverse problem in the computer vision field. To make the problem well-posed, this paper puts forward a plain but effective regularization method, namely spectral norm regularization (SN), which can be ...
Zhiyong Xu, Shuhan Sun, Jianlin Zhang
core   +1 more source

Efficient, Blind, Spatially-Variant Deblurring for Shaken Images [PDF]

open access: yes, 2014
International audienceIn this chapter we discuss modeling and removing spatially-variant blur from photographs. We describe a compact global parameterization of camera shake blur, based on the 3D rotation of the camera during the exposure. Our model uses
Ponce, Jean   +3 more
core   +2 more sources

Quantitative comparisons among blind deblurring methods.

open access: yes, 2018
Quantitative comparisons among blind deblurring methods.
Houjie Li (4918960)   +4 more
core   +1 more source

Stochastic Blind Motion Deblurring [PDF]

open access: yes, 2015
Blind motion deblurring from a single image is a highly under-constrained problem with many degenerate solutions. A good approximation of the intrinsic image can therefore only be obtained with the help of prior information in the form of (often non ...
Heide, Felix   +3 more
core   +1 more source

Blind Image Deblurring via a Novel Sparse Channel Prior

open access: yesMathematics, 2022
Blind image deblurring (BID) is a long-standing challenging problem in low-level image processing. To achieve visually pleasing results, it is of utmost importance to select good image priors. In this work, we develop the ratio of the dark channel prior (
Dayi Yang, Xiaojun Wu, Hefeng Yin
doaj   +1 more source

Arbitrarily shaped Point Spread Function (PSF) estimation for single image blind deblurring [PDF]

open access: yes, 2020
The research paper focuses on a challenging task faced in blind image deblurring (BID). It relates to the estimation of arbitrarily shaped (nonparametric or complex shaped) point spread functions (PSFs) of motion blur caused by camera handshake.
Khan, Aftab, Yin, Hujun; id_orcid
core   +1 more source

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