Title
Geometric corner extraction in retinal fundus images.
Abstract
This paper presents a novel approach of finding corner features between retinal fundus images. Such images are relatively textureless and comprising uneven shades which render state-of-the-art approaches e.g., SIFT to be ineffective. Many of the detected features have low repeatability (<; 10%), especially when the viewing angle difference in the corresponding images is large. Our approach is based on the finding of blood vessels using a robust line fitting algorithm, and locating corner features based on the bends and intersections between the blood vessels. These corner features have proven to be superior to the state-of-the-art feature extraction methods (i.e. SIFT, SURF, Harris, Good Features To Track (GFTT) and FAST) with regard to repeatability and stability in our experiment. Overall in average, the approach has close to 10% more repeatable detected features than the second best in two corresponding retinal images in the experiment.
Year
DOI
Venue
2014
10.1109/EMBC.2014.6943553
EMBC
Keywords
DocType
Volume
eye,retinal fundus images,feature extraction methods,biomedical optical imaging,blood vessels,feature extraction,edge detection,geometric corner extraction,medical image processing,line fitting algorithm
Conference
2014
ISSN
Citations 
PageRank 
1557-170X
1
0.36
References 
Authors
9
7
Name
Order
Citations
PageRank
Jimmy Addison Lee1205.57
Beng Hai Lee2172.40
Guozhen Xu351.16
Ee Ping Ong431333.36
Damon Wing Kee Wong543437.78
Jiang Liu629942.50
Tock Han Lim710.36