A novel method for retinal optic disc detection using bat meta-heuristic algorithm

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dc.contributor.authorAbdullah, Ahmad S.
dc.contributor.authorÖzok, Yasa Ekşioğlu
dc.contributor.authorRahebi, Javad
dc.date.accessioned2021-05-15T12:41:32Z
dc.date.available2021-05-15T12:41:32Z
dc.date.issued2018
dc.departmentTıp Fakültesien_US
dc.descriptionABDULLAH, AHMED SULAIMAN/0000-0002-8578-1760
dc.description.abstractNormally, the optic disc detection of retinal images is useful during the treatment of glaucoma and diabetic retinopathy. In this paper, the novel preprocessing of a retinal image with a bat algorithm (BA) optimization is proposed to detect the optic disc of the retinal image. As the optic disk is a bright area and the vessels that emerge from it are dark, these facts lead to the selected segments being regions with a great diversity of intensity, which does not usually happen in pathological regions. First, in the preprocessing stage, the image is fully converted into a gray image using a gray scale conversion, and then morphological operations are implemented in order to remove dark elements such as blood vessels, from the images. In the next stage, a bat algorithm (BA) is used to find the optimum threshold value for the optic disc location. In order to improve the accuracy and to obtain the best result for the segmented optic disc, the ellipse fitting approach was used in the last stage to enhance and smooth the segmented optic disc boundary region. The ellipse fitting is carried out using the least square distance approach. The efficiency of the proposed method was tested on six publicly available datasets, MESSIDOR, DRIVE, DIARETDB1, DIARETDB0, STARE, and DRIONS-DB. The optic disc segmentation average overlaps and accuracy was in the range of 78.5-88.2% and 96.6-99.91% in these six databases. The optic disk of the retinal images was segmented in less than 2.1s per image. The use of the proposed method improved the optic disc segmentation results for healthy and pathological retinal images in a low computation time.en_US
dc.identifier.doi10.1007/s11517-018-1840-1
dc.identifier.endpage2024en_US
dc.identifier.issn0140-0118
dc.identifier.issn1741-0444
dc.identifier.issue11en_US
dc.identifier.pmid29740745
dc.identifier.scopus2-s2.0-85046693916
dc.identifier.scopusqualityQ2
dc.identifier.startpage2015en_US
dc.identifier.urihttps://doi.org/10.1007/s11517-018-1840-1
dc.identifier.urihttps://hdl.handle.net/20.500.12939/818
dc.identifier.volume56en_US
dc.identifier.wosWOS:000447752100006
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorAbdullah, Ahmad S.
dc.institutionauthorÖzok, Yasa Ekşioğlu
dc.language.isoen
dc.publisherSpringer Heidelbergen_US
dc.relation.ispartofMedical & Biological Engineering & Computing
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectOptic Disc Segmentationen_US
dc.subjectRetinal Imageen_US
dc.subjectGray Scale Imagingen_US
dc.subjectBat Algorithmen_US
dc.subjectAccuracyen_US
dc.titleA novel method for retinal optic disc detection using bat meta-heuristic algorithm
dc.typeArticle

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