Restoration of retinal images with space-variant blur

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985556%3A_____%2F14%3A00424586" target="_blank" >RIV/67985556:_____/14:00424586 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/1.JBO.19.1.016023" target="_blank" >http://dx.doi.org/10.1117/1.JBO.19.1.016023</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/1.JBO.19.1.016023" target="_blank" >10.1117/1.JBO.19.1.016023</a>

Result language

angličtina

Original language name

Restoration of retinal images with space-variant blur

Original language description

Retinal images are essential clinical resources for the diagnosis of retinopathy and many other ocular diseases. Because of improper acquisition conditions or inherent optical aberrations in the eye, the images are often degraded with blur. In many common cases, the blur varies across the field of view. Most image deblurring algorithms assume a space-invariant blur, which fails in the presence of space-variant (SV) blur. In this work, we propose an innovative strategy for the restoration of retinal images in which we consider the blur to be both unknown and SV. We model the blur by a linear operation interpreted as a convolution with a point-spread function (PSF) that changes with the position in the image. To achieve an artifact-free restoration, we propose a framework for a robust estimation of the SV PSF based on an eye-domain knowledge strategy. The restoration method was tested on artificially and naturally degraded retinal images. The results show an important enhance- ment, sign

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JD - Use of computers, robotics and its application

OECD FORD branch

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Project

<a href="/en/project/GA13-29225S" target="_blank" >GA13-29225S: Image Blind Deconvolution in Demanding Conditions</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of Biomedical Optics

ISSN

1083-3668

e-ISSN

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Volume of the periodical

19

Issue of the periodical within the volume

1

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

016023-1-016023-12

UT code for WoS article

000331892700055

EID of the result in the Scopus database

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