CREST LINES AND CORRELATION FILTER BASED LOCATION OF THE MACULA IN DIGITAL RETINAL IMAGES

C. Mariño, M. G. Penedo, S. Pena, F. González

Abstract

The fovea is a spot located in the center of the macula, and responsible for sharp central vision. In this paper a method to detect the macula location and size is presented, as a first step towards the fovea location.In the first stage of the process, the retinal vessel tree is extracted through a crest line detector. Then, the main vessel arc is fitted to a parabolic curve using a polynomial fitting process, which will allow for the computation of the area where the optic disc is located. The last stage consists in the segmentation of the optic disc, by means of the combination of morphological operations and a deformable model. Then, following the morphological properties of the eye, the macula location and size is determined by means of a new correlation filter. Search with this filter is performed in a reduced area of interest, whose size and position is determined by means, again, of the morphological properties of the eye. The algorithm has proven to be fast and accurate in the set of test images, composed of 135 digital retinal images.

References

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Paper Citation


in Harvard Style

Mariño C., G. Penedo M., Pena S. and González F. (2008). CREST LINES AND CORRELATION FILTER BASED LOCATION OF THE MACULA IN DIGITAL RETINAL IMAGES . In Proceedings of the First International Conference on Bio-inspired Systems and Signal Processing - Volume 2: BIOSIGNALS, (BIOSTEC 2008) ISBN 978-989-8111-18-0, pages 521-527. DOI: 10.5220/0001066305210527


in Bibtex Style

@conference{biosignals08,
author={C. Mariño and M. G. Penedo and S. Pena and F. González},
title={CREST LINES AND CORRELATION FILTER BASED LOCATION OF THE MACULA IN DIGITAL RETINAL IMAGES},
booktitle={Proceedings of the First International Conference on Bio-inspired Systems and Signal Processing - Volume 2: BIOSIGNALS, (BIOSTEC 2008)},
year={2008},
pages={521-527},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0001066305210527},
isbn={978-989-8111-18-0},
}


in EndNote Style

TY - CONF
JO - Proceedings of the First International Conference on Bio-inspired Systems and Signal Processing - Volume 2: BIOSIGNALS, (BIOSTEC 2008)
TI - CREST LINES AND CORRELATION FILTER BASED LOCATION OF THE MACULA IN DIGITAL RETINAL IMAGES
SN - 978-989-8111-18-0
AU - Mariño C.
AU - G. Penedo M.
AU - Pena S.
AU - González F.
PY - 2008
SP - 521
EP - 527
DO - 10.5220/0001066305210527