Detection of retinal vascular bifurcations by rotation-, scale- and reflection-invariant COSFIRE filters

George Azzopardi; Nicolai Petkov

Detection of retinal vascular bifurcations by rotation-, scale- and reflection-invariant COSFIRE filters

^*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

We propose trainable filters, which we call COSFIRE (Combination Of Shifted Filter REsponses), and use to detect vascular bifurcations in retinal images. We configure a COSFIRE filter to be selective for a bifurcation that is specified by a user in a single-step training phase. The automatic configuration comprises the selection of channels of a bank of Gabor filters and the determination of certain blur and shift parameters. A COSFIRE filter response is computed as the geometric mean of the blurred and shifted responses of the selected Gabor biters, The proposed filters share similar properties with some shape-selective neurons in visual cortex. With only five filters we achieve a recall of 98.57% at a precision of 95.37% on the 40 binary retinal images (from DRIVE), containing more than 5000 bifurcations.

Original language	English
Title of host publication	2012 25TH INTERNATIONAL SYMPOSIUM ON COMPUTER-BASED MEDICAL SYSTEMS (CBMS)
Editors	P Soda, F Tortorella
Place of Publication	NEW YORK
Publisher	IEEE (The Institute of Electrical and Electronics Engineers)
Number of pages	4
ISBN (Print)	978-1-4673-2051-1
Publication status	Published - 2011
Event	25th International Symposium on Computer-Based Medical Systems (CBMS) - , Italy Duration: 20-Jun-2012 → 22-Jun-2012

Other

Other	25th International Symposium on Computer-Based Medical Systems (CBMS)
Country/Territory	Italy
Period	20/06/2012 → 22/06/2012

Keywords

FEATURES
IMAGES

Cite this

@inproceedings{6de557192c454bddbf7e4276eeb3fbc1,

title = "Detection of retinal vascular bifurcations by rotation-, scale- and reflection-invariant COSFIRE filters",

abstract = "We propose trainable filters, which we call COSFIRE (Combination Of Shifted Filter REsponses), and use to detect vascular bifurcations in retinal images. We configure a COSFIRE filter to be selective for a bifurcation that is specified by a user in a single-step training phase. The automatic configuration comprises the selection of channels of a bank of Gabor filters and the determination of certain blur and shift parameters. A COSFIRE filter response is computed as the geometric mean of the blurred and shifted responses of the selected Gabor biters, The proposed filters share similar properties with some shape-selective neurons in visual cortex. With only five filters we achieve a recall of 98.57% at a precision of 95.37% on the 40 binary retinal images (from DRIVE), containing more than 5000 bifurcations.",

keywords = "FEATURES, IMAGES",

author = "George Azzopardi and Nicolai Petkov",

year = "2011",

language = "English",

isbn = "978-1-4673-2051-1",

editor = "P Soda and F Tortorella",

booktitle = "2012 25TH INTERNATIONAL SYMPOSIUM ON COMPUTER-BASED MEDICAL SYSTEMS (CBMS)",

publisher = "IEEE (The Institute of Electrical and Electronics Engineers)",

note = "25th International Symposium on Computer-Based Medical Systems (CBMS) ; Conference date: 20-06-2012 Through 22-06-2012",

}

Azzopardi, G & Petkov, N 2011, Detection of retinal vascular bifurcations by rotation-, scale- and reflection-invariant COSFIRE filters. in P Soda & F Tortorella (eds), 2012 25TH INTERNATIONAL SYMPOSIUM ON COMPUTER-BASED MEDICAL SYSTEMS (CBMS). IEEE (The Institute of Electrical and Electronics Engineers), NEW YORK, 25th International Symposium on Computer-Based Medical Systems (CBMS), Italy, 20/06/2012.

Detection of retinal vascular bifurcations by rotation-, scale- and reflection-invariant COSFIRE filters. / Azzopardi, George ; Petkov, Nicolai.

2012 25TH INTERNATIONAL SYMPOSIUM ON COMPUTER-BASED MEDICAL SYSTEMS (CBMS). ed. / P Soda; F Tortorella. NEW YORK : IEEE (The Institute of Electrical and Electronics Engineers), 2011.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

TY - GEN

T1 - Detection of retinal vascular bifurcations by rotation-, scale- and reflection-invariant COSFIRE filters

AU - Azzopardi, George

AU - Petkov, Nicolai

PY - 2011

Y1 - 2011

N2 - We propose trainable filters, which we call COSFIRE (Combination Of Shifted Filter REsponses), and use to detect vascular bifurcations in retinal images. We configure a COSFIRE filter to be selective for a bifurcation that is specified by a user in a single-step training phase. The automatic configuration comprises the selection of channels of a bank of Gabor filters and the determination of certain blur and shift parameters. A COSFIRE filter response is computed as the geometric mean of the blurred and shifted responses of the selected Gabor biters, The proposed filters share similar properties with some shape-selective neurons in visual cortex. With only five filters we achieve a recall of 98.57% at a precision of 95.37% on the 40 binary retinal images (from DRIVE), containing more than 5000 bifurcations.

AB - We propose trainable filters, which we call COSFIRE (Combination Of Shifted Filter REsponses), and use to detect vascular bifurcations in retinal images. We configure a COSFIRE filter to be selective for a bifurcation that is specified by a user in a single-step training phase. The automatic configuration comprises the selection of channels of a bank of Gabor filters and the determination of certain blur and shift parameters. A COSFIRE filter response is computed as the geometric mean of the blurred and shifted responses of the selected Gabor biters, The proposed filters share similar properties with some shape-selective neurons in visual cortex. With only five filters we achieve a recall of 98.57% at a precision of 95.37% on the 40 binary retinal images (from DRIVE), containing more than 5000 bifurcations.

KW - FEATURES

KW - IMAGES

M3 - Conference contribution

SN - 978-1-4673-2051-1

BT - 2012 25TH INTERNATIONAL SYMPOSIUM ON COMPUTER-BASED MEDICAL SYSTEMS (CBMS)

A2 - Soda, P

A2 - Tortorella, F

PB - IEEE (The Institute of Electrical and Electronics Engineers)

CY - NEW YORK

T2 - 25th International Symposium on Computer-Based Medical Systems (CBMS)

Y2 - 20 June 2012 through 22 June 2012

ER -