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Detection of blood vessels in the retina with multiscale Gabor filters

[+] Author Affiliations
Rangaraj M. Rangayyan

University of Calgary, Schulich School of Engineering, Department of Electrical and Computer Engineering, Calgary, Alberta, Canada T2N 1N4

Fábio J. Ayres

University of Calgary, Schulich School of Engineering, Department of Electrical and Computer Engineering, Calgary, Alberta, Canada T2N 1N4

Faraz Oloumi

University of Calgary, Schulich School of Engineering, Department of Electrical and Computer Engineering, Calgary, Alberta, Canada T2N 1N4

Foad Oloumi

University of Calgary, Schulich School of Engineering, Department of Electrical and Computer Engineering, Calgary, Alberta, Canada T2N 1N4

Peyman Eshghzadeh-Zanjani

University of Calgary, Schulich School of Engineering, Department of Electrical and Computer Engineering, Calgary, Alberta, Canada T2N 1N4

J. Electron. Imaging. 17(2), 023018 (April 30, 2008). doi:10.1117/1.2907209
History: Received June 08, 2007; Revised October 26, 2007; Accepted November 15, 2007; Published April 30, 2008
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We propose image processing techniques for the detection of blood vessels in fundus images of the retina. The methods include the design of a bank of directionally sensitive Gabor filters with tunable scale and elongation parameters. Forty images of the retina from the Digital Retinal Images for Vessel Extraction database were used to evaluate the performance of the methods. The results of blood vessel detection using inverted green-channel images were compared with the corresponding manually segmented blood vessels. High efficiency in the detection of blood vessels with the area under the receiver operating characteristics curve of up to 0.96 was achieved with a combination of Gabor filters at three scales.

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© 2008 SPIE and IS&T

Citation

Rangaraj M. Rangayyan ; Fábio J. Ayres ; Faraz Oloumi ; Foad Oloumi and Peyman Eshghzadeh-Zanjani
"Detection of blood vessels in the retina with multiscale Gabor filters", J. Electron. Imaging. 17(2), 023018 (April 30, 2008). ; http://dx.doi.org/10.1117/1.2907209


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