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Automatic localization of the optic disc by combining vascular and intensity information

Title
Automatic localization of the optic disc by combining vascular and intensity information
Type
Article in International Scientific Journal
Year
2013
Authors
Ana Maria Mendonca
(Author)
FEUP
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Antonio Sousa
(Author)
Other
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Luis Mendonca
(Author)
Other
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Aurelio Campilho
(Author)
FEUP
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Journal
Vol. 37 No. 5-6
Pages: 409-417
ISSN: 0895-6111
Publisher: Elsevier
Indexing
Scientific classification
FOS: Engineering and technology > Environmental biotechnology
CORDIS: Technological sciences > Engineering
Other information
Authenticus ID: P-006-K2N
Abstract (EN): This paper describes a new methodology for automatic location of the optic disc in retinal images, based on the combination of information taken from the blood vessel network with intensity data. The distribution of vessel orientations around an image point is quantified using the new concept of entropy of vascular directions. The robustness of the method for OD localization is improved by constraining the search for maximal values of entropy to image areas with high intensities. The method was able to obtain a valid location for the optic disc in 1357 out of the 1361 images of the four datasets.
Language: English
Type (Professor's evaluation): Scientific
Contact: amendon@fe.up.pt; asousa@eu.ipp.pt; luismendonc@gmail.com; campilho@fe.up.pt
No. of pages: 9
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