Improvement of Vessel Segmentation by Matched Filtering in Colour Retinal Images

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F09%3APU81701" target="_blank" >RIV/00216305:26220/09:PU81701 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Improvement of Vessel Segmentation by Matched Filtering in Colour Retinal Images

Original language description

A method for segmentation of vessel structure in colour retinal fundus images is presented, based on 2D matched filtering correlating the local image areas with 2D masks obtained via averaging of brightness profiles of vessels for several different vessel widths. Each of the basic masks is rotated in twelve different directions. This way, 60 masks for 5 different widths, each with 12 orientations are produced and used as 2D convolution kernels of the matched filters. The maximum response of all the filter responses for a concrete local area thus carries, if there is a vessel present, the information both on the width and orientation of the vessel segment. Compared to the previously published results, the segmentation has been improved primarily in twodirections: the width resolution has been increased from 3 to 5 classes with a better approximation of the brightness profiles, and the orientation information is now utilized to provide vessel direction maps that are further used in the

Czech name

Vylepšení metody segmentace cév retinálních snímků pomocí přizpůsobených filtrů

Czech description

A method for segmentation of vessel structure in colour retinal fundus images is presented, based on 2D matched filtering correlating the local image areas with 2D masks obtained via averaging of brightness profiles of vessels for several different vessel widths. Each of the basic masks is rotated in twelve different directions. This way, 60 masks for 5 different widths, each with 12 orientations are produced and used as 2D convolution kernels of the matched filters. The maximum response of all the filter responses for a concrete local area thus carries, if there is a vessel present, the information both on the width and orientation of the vessel segment. Compared to the previously published results, the segmentation has been improved primarily in twodirections: the width resolution has been increased from 3 to 5 classes with a better approximation of the brightness profiles, and the orientation information is now utilized to provide vessel direction maps that are further used in the

Type

D - Article in proceedings

CEP classification

JD - Use of computers, robotics and its application

OECD FORD branch

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Project

<a href="/en/project/1M0572" target="_blank" >1M0572: Data, algorithms, decision making</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2009

Confidentiality

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

Article name in the collection

IFMBE Proceedings of World Congress on Medical Physics and Biomedical Engineering

ISBN

978-3-642-03897-6

ISSN

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e-ISSN

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Number of pages

4

Pages from-to

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Publisher name

Springer

Place of publication

Neuveden

Event location

Mnichov

Event date

Sep 7, 2009

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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