Results 21 to 30 of about 505,001 (337)

SSIM-based sparse image restoration

open access: yesJournal of King Saud University: Computer and Information Sciences, 2022
In this paper, we provide a sparse image restoration algorithm with a SSIM-based objective function. The proposed technique is a modification to the SSIM-inspired OMP (iOMP) and, and it has two parallel sparse restoration paths.
A.N. Omara   +3 more
doaj   +1 more source

Application of the quantum spin glass theory to image restoration [PDF]

open access: yes, 2000
Quantum fluctuation is introduced into the Markov random fields (MRF's) model for image restoration in the context of Bayesian approach. We investigate the dependence of the quantum fluctuation on the quality of BW image restoration by making use of ...
A.J. Bray   +11 more
core   +2 more sources

Digital image processing of the Ghent altarpiece : supporting the painting's study and conservation treatment [PDF]

open access: yes, 2015
In this article, we show progress in certain image processing techniques that can support the physical restoration of the painting, its art-historical analysis, or both.
Cornelis, Bruno   +9 more
core   +2 more sources

Cross-Scale KNN Image Transformer for Image Restoration

open access: yesIEEE Access, 2023
Numerous image restoration approaches have been proposed based on attention mechanism, achieving superior performance to convolutional neural networks (CNNs) based counterparts.
Hunsang Lee   +3 more
doaj   +1 more source

TEM image restoration from fast image streams.

open access: yesPLoS ONE, 2021
Microscopy imaging experiments generate vast amounts of data, and there is a high demand for smart acquisition and analysis methods. This is especially true for transmission electron microscopy (TEM) where terabytes of data are produced if imaging a full
Håkan Wieslander   +2 more
doaj   +1 more source

Statistical image restoration

open access: yesComputers & Mathematics with Applications, 1990
AbstractRestoration of very noisy images typical of electron-beam diagnostics of microelectronics is considered. The conditions, under which the regularization method yields strongly consistent (with probability 1) estimates of image functions are investigated.
S.N. Dubonos   +2 more
openaire   +2 more sources

Studies of EGRET sources with a novel image restoration technique [PDF]

open access: yes, 2007
We have developed an image restoration technique based on the Richardson-Lucy algorithm optimized for GLAST-LAT image analysis. Our algorithm is original since it utilizes the PSF (point spread function) that is calculated for each event.
Chiang, James   +4 more
core   +3 more sources

Fast Image Restoration for Spatially Varying Defocus Blur of Imaging Sensor

open access: yesSensors, 2015
This paper presents a fast adaptive image restoration method for removing spatially varying out-of-focus blur of a general imaging sensor. After estimating the parameters of space-variant point-spread-function (PSF) using the derivative in each uniformly
Hejin Cheong   +4 more
doaj   +1 more source

Variational Deep Image Restoration

open access: yesIEEE Transactions on Image Processing, 2022
This paper presents a new variational inference framework for image restoration and a convolutional neural network (CNN) structure that can solve the restoration problems described by the proposed framework. Earlier CNN-based image restoration methods primarily focused on network architecture design or training strategy with non-blind scenarios where ...
Jae Woong Soh, Nam Ik Cho
openaire   +3 more sources

Gray Extreme Weighted Sum Image Ringing Evaluation Algorithm

open access: yesJournal of Harbin University of Science and Technology, 2019
In the process of image blind restoration, the estimation of the fuzzy kernel usually produces errors which lead to image ringing The existing algorithm cannot effectively evaluate the severity of ringing To solve this problem, a method for evaluating ...
KE Ming   +4 more
doaj   +1 more source

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