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Defining the Optimal Region of Interest for Hyperemia Grading in the Bulbar Conjunctiva
Joint Authors
Sánchez Brea, María Luisa
Barreira Rodríguez, Noelia
Evans, Katharine
Pena-Verdeal, Hugo
Mosquera, A.
Source
Computational and Mathematical Methods in Medicine
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-12-19
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Conjunctival hyperemia or conjunctival redness is a symptom that can be associated with a broad group of ocular diseases.
Its levels of severity are represented by standard photographic charts that are visually compared with the patient’s eye.
This way, the hyperemia diagnosis becomes a nonrepeatable task that depends on the experience of the grader.
To solve this problem, we have proposed a computer-aided methodology that comprises three main stages: the segmentation of the conjunctiva, the extraction of features in this region based on colour and the presence of blood vessels, and, finally, the transformation of these features into grading scale values by means of regression techniques.
However, the conjunctival segmentation can be slightly inaccurate mainly due to illumination issues.
In this work, we analyse the relevance of different features with respect to their location within the conjunctiva in order to delimit a reliable region of interest for the grading.
The results show that the automatic procedure behaves like an expert using only a limited region of interest within the conjunctiva.
American Psychological Association (APA)
Sánchez Brea, María Luisa& Barreira Rodríguez, Noelia& Mosquera, A.& Evans, Katharine& Pena-Verdeal, Hugo. 2016. Defining the Optimal Region of Interest for Hyperemia Grading in the Bulbar Conjunctiva. Computational and Mathematical Methods in Medicine،Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1100119
Modern Language Association (MLA)
Sánchez Brea, María Luisa…[et al.]. Defining the Optimal Region of Interest for Hyperemia Grading in the Bulbar Conjunctiva. Computational and Mathematical Methods in Medicine No. 2016 (2016), pp.1-9.
https://search.emarefa.net/detail/BIM-1100119
American Medical Association (AMA)
Sánchez Brea, María Luisa& Barreira Rodríguez, Noelia& Mosquera, A.& Evans, Katharine& Pena-Verdeal, Hugo. Defining the Optimal Region of Interest for Hyperemia Grading in the Bulbar Conjunctiva. Computational and Mathematical Methods in Medicine. 2016. Vol. 2016, no. 2016, pp.1-9.
https://search.emarefa.net/detail/BIM-1100119
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1100119