Automatic Image Characterization of Psoriasis Lesions

Psoriasis is a chronic skin disease that affects 125 million people worldwide and, particularly, 2% of the Spanish population, characterized by the appearance of skin lesions due to a growth of the epidermis that is seven times larger than usual. Its diagnosis and monitoring are based on the use of...

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Main Authors: Javier Martínez-Torres, Alicia Silva Piñeiro, Álvaro Alesanco, Ignacio Pérez-Rey, José García
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/22/2974
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author Javier Martínez-Torres
Alicia Silva Piñeiro
Álvaro Alesanco
Ignacio Pérez-Rey
José García
author_facet Javier Martínez-Torres
Alicia Silva Piñeiro
Álvaro Alesanco
Ignacio Pérez-Rey
José García
author_sort Javier Martínez-Torres
collection DOAJ
description Psoriasis is a chronic skin disease that affects 125 million people worldwide and, particularly, 2% of the Spanish population, characterized by the appearance of skin lesions due to a growth of the epidermis that is seven times larger than usual. Its diagnosis and monitoring are based on the use of methodologies for measuring the severity and extent of these spots, and this includes a large subjective component. For this reason, this paper presents an automatic method for characterizing psoriasis images that is divided into four parts: image preparation or pre-processing, feature extraction, classification of the lesions, and the obtaining of parameters. The methodology proposed in this work covers different digital-image processing techniques, namely, marker-based image delimitation, hair removal, nipple detection, lesion contour detection, areal-measurement-based lesion classification, as well as lesion characterization by means of red and white intensity. The results obtained were also endorsed by a professional dermatologist. This methodology provides professionals with a common software tool for monitoring the different existing typologies, which proved satisfactory in the cases analyzed for a set of 20 images corresponding to different types of lesions.
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spelling doaj.art-0afdd30966d144cb89444f9fd9694dd62023-11-23T00:15:55ZengMDPI AGMathematics2227-73902021-11-01922297410.3390/math9222974Automatic Image Characterization of Psoriasis LesionsJavier Martínez-Torres0Alicia Silva Piñeiro1Álvaro Alesanco2Ignacio Pérez-Rey3José García4Department of Applied Mathematics I, Telecommunications Engineering School, University of Vigo, 36310 Vigo, SpainDepartment of Applied Mathematics I, Telecommunications Engineering School, University of Vigo, 36310 Vigo, SpainDepartment of Electronics Engineering and Communications, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, SpainÁrea de Geotecnia Básica y Experimental, Laboratorio de Geotecnia, CEDEX, 28014 Madrid, SpainDepartment of Electronics Engineering and Communications, Aragón Institute of Engineering Research (I3A), University of Zaragoza, 50018 Zaragoza, SpainPsoriasis is a chronic skin disease that affects 125 million people worldwide and, particularly, 2% of the Spanish population, characterized by the appearance of skin lesions due to a growth of the epidermis that is seven times larger than usual. Its diagnosis and monitoring are based on the use of methodologies for measuring the severity and extent of these spots, and this includes a large subjective component. For this reason, this paper presents an automatic method for characterizing psoriasis images that is divided into four parts: image preparation or pre-processing, feature extraction, classification of the lesions, and the obtaining of parameters. The methodology proposed in this work covers different digital-image processing techniques, namely, marker-based image delimitation, hair removal, nipple detection, lesion contour detection, areal-measurement-based lesion classification, as well as lesion characterization by means of red and white intensity. The results obtained were also endorsed by a professional dermatologist. This methodology provides professionals with a common software tool for monitoring the different existing typologies, which proved satisfactory in the cases analyzed for a set of 20 images corresponding to different types of lesions.https://www.mdpi.com/2227-7390/9/22/2974psoriasisimage processingOpenCVclassification
spellingShingle Javier Martínez-Torres
Alicia Silva Piñeiro
Álvaro Alesanco
Ignacio Pérez-Rey
José García
Automatic Image Characterization of Psoriasis Lesions
Mathematics
psoriasis
image processing
OpenCV
classification
title Automatic Image Characterization of Psoriasis Lesions
title_full Automatic Image Characterization of Psoriasis Lesions
title_fullStr Automatic Image Characterization of Psoriasis Lesions
title_full_unstemmed Automatic Image Characterization of Psoriasis Lesions
title_short Automatic Image Characterization of Psoriasis Lesions
title_sort automatic image characterization of psoriasis lesions
topic psoriasis
image processing
OpenCV
classification
url https://www.mdpi.com/2227-7390/9/22/2974
work_keys_str_mv AT javiermartineztorres automaticimagecharacterizationofpsoriasislesions
AT aliciasilvapineiro automaticimagecharacterizationofpsoriasislesions
AT alvaroalesanco automaticimagecharacterizationofpsoriasislesions
AT ignacioperezrey automaticimagecharacterizationofpsoriasislesions
AT josegarcia automaticimagecharacterizationofpsoriasislesions