Title :
Optic disc and macula detection in fundus images by means of template matching
Author :
Garduno-Alvarado, Tzolkin ; Martinez-Perez, M. Elena ; Martinez-Castellanos, Maria A. ; Rodriguez-Quinones, Luvia ; Salinas-Longoria, Samantha M.
Author_Institution :
Dept. of Comput. Sci., Univ. Nac. Autonoma de Mexico, Mexico City, Mexico
Abstract :
Various methods for detecting optic disc and macula in fundus images have been developed. Our aim is to propose a fairly easy method for detecting both features jointly. This is achieved by first correcting in homogenous luminosity using a polynomial approximation of the background of the images. Secondly, the use of the cross-correlation in the frequency domain between the images and a steerable template which contains both structures. The 38 photographs used in this work belong to a local database of patients suffering diabetic retinopathy along its four severity stages. Our results showed 100% optic disc centers located within the OD area and 90% macula centers located within the MC area.
Keywords :
biomedical optical imaging; diseases; eye; feature extraction; medical image processing; vision defects; cross-correlation; diabetic retinopathy; feature detection; fundus images; homogenous luminosity correction; macula detection; optic disc detection; photographs; polynomial approximation; template matching; Biomedical optical imaging; Diabetes; Image color analysis; Optical imaging; Polynomials; Retina; Training;
Conference_Titel :
Engineering in Medicine and Biology Society (EMBC), 2014 36th Annual International Conference of the IEEE
Conference_Location :
Chicago, IL
DOI :
10.1109/EMBC.2014.6943547
