Robust and accurate optic disk localization using vessel symmetry line measure in fundus images

• Autorzy: Panda R. , Puhan N. B. , Panda G.

Identyfikatory

DOI

10.1016/j.bbe.2017.05.008

• Języki publikacji: EN

Abstrakty

EN

Accurate optic disk (OD) localization is an important step in fundus image based computer-aided diagnosis of glaucoma and diabetic retinopathy. Robust OD localization becomes more challenging with the presence of common pathological variations which could alter its overall appearance. This paper presents a novel OD localization method by incorporating salient visual cues of retinal vasculature: (1) global vessel symmetry, (2) vessel component count and (3) local vessel symmetry inside OD region. In the proposed method, a new vessel symmetry line (VSL) measure is designed to demarcate the lines that divide the retinal vasculature into approximately similar halves. The initial OD center location is computed using the highest number of major blood vessel components in the skeleton image. The final OD center localization involves an iterative center of mass computation to exploit the local vessel symmetry in the OD region of interest. The proposed method shows effectiveness in diseased retinas having diverse symptoms like bright lesions, hemorrhages, and tortuous vessels that create potential ambiguity for OD localization. A total of ten publicly available retinal image databases are considered for extensive evaluation of the proposed method. The experimental results demonstrate high average OD detection accuracy of 99.49%, while achieving state-of-the-art OD localization error in all databases.

Słowa kluczowe

EN

optic disk localization; vessel symmetry; glaucoma; diabetic retinopathy; computer aided diagnosis

PL

dysk optyczny; jaskra; retinopatia cukrzycowa; komputerowe wspomaganie diagnozy

• Wydawca: Nałęcz Institute of Biocybernetics and Biomedical Engineering of the Polish Academy of Sciences ; Elsevier
• Czasopismo: Biocybernetics and Biomedical Engineering
• Rocznik: 2017
• Tom: Vol. 37, no. 3
• Strony: 466--476
• Opis fizyczny: Bibliogr. 37 poz., rys., tab., wykr.

Twórcy

autor

Panda R.

• School of Electrical Sciences, Indian Institute of Technology Bhubaneswar, India

autor

Puhan N. B.

• School of Electrical Sciences, Indian Institute of Technology Bhubaneswar, India

autor

Panda G.

• School of Electrical Sciences, Indian Institute of Technology Bhubaneswar, India

Bibliografia

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Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę (zadania 2017).