Retinal Blood Vessel Extraction from Fundus Images Using Enhancement Filtering and Clustering

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Jyotiprava Dash
Veer Surendra Sai University of Technology (Burla, Índia). Department of Electronics and Telecommunication Engineerin
Priyadarsan Parida
GIET University (Gunupur, India). Department of Electronics and Communication Engineering)
Nilamani Bhoi
Veer Surendra Sai University of Technology (Burla, Índia). Department of Electronics and Telecommunication Engineering)

Screening of vision troubling eye diseases by segmenting fundus images eases the danger of loss of sight of people. Computer assisted analysis can play an important role in the forthcoming health care system universally. Therefore, this paper presents a clustering based method for extraction of retinal vasculature from ophthalmoscope images. The method starts with image enhancement by contrast limited adaptive histogram equalization (CLAHE) from which feature extraction is accomplished using Gabor filter followed by enhancement of extracted features with Hessian based enhancement filters. It then extracts the vessels using K-mean clustering technique. Finally, the method ends with the application of a morphological cleaning operation to get the ultimate vessel segmented image. The performance of the proposed method is evaluated by taking two different publicly available Digital retinal images for vessel extraction (DRIVE) and Child heart and health study in England (CHASE_DB1) databases using nine different performance matrices. It gives average accuracies of 0. 952 and 0. 951 for DRIVE and CHASE_DB1 databases, respectively.

Paraules clau
Fundus images, Retinal vasculature, Morphological cleaning, K-mean clustering, Medical image analysis

Article Details

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Dash, Jyotiprava et al. «Retinal Blood Vessel Extraction from Fundus Images Using Enhancement Filtering and Clustering». ELCVIA: electronic letters on computer vision and image analysis, 2020, vol.VOL 19, núm. 1, p. 38-52, https://raco.cat/index.php/ELCVIA/article/view/372681.
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