Paper Info
Title
Automatic measurement of vertical cup-to-disc ratio on retinal fundus images
Abstract
Glaucoma is a leading cause of permanent blindness. Retinal fundus image examination is useful for early detection of glaucoma. In order to evaluate the presence of glaucoma, the ophthalmologist may determine the cup and disc areas and diagnose glaucoma using a vertical cup-to-disc ratio. However, determination of the cup area is very difficult, thus we propose a method to measure the cup-to-disc ratio using a vertical profile on the optic disc. The edge of optic disc was then detected by use of a canny edge detection filter. The profile was then obtained around the center of the optic disc in the vertical direction. Subsequently, the edge of the cup area on the vertical profile was determined by thresholding technique. Lastly, the vertical cup-to-disc ratio was calculated. Using seventy nine images, including twenty five glaucoma images, the sensitivity of 80% and a specificity of 85% were achieved with this method.
Year
DOI
Venue
2010
10.1007/978-3-642-13923-9_7
ICMB
Keywords
Field
DocType
vertical profile,cup area,retinal fundus image,vertical cup-to-disc ratio,glaucoma image,disc area,optic disc,canny edge,automatic measurement,diagnose glaucoma,vertical direction,cup-to-disc ratio,edge detection
Canny edge detector,Glaucoma,Vertical direction,Computer-aided diagnosis,Cup-to-disc ratio,Fundus (eye),Ophthalmology,Optic disc,Optometry,Thresholding,Geology
Conference
Volume
ISSN
ISBN
6165
0302-9743
3-642-13922-1
Citations 
PageRank 
References 
6
0.62
9
Authors
7
Name
Order
Citations
PageRank
Y Hatanaka127624.77
Atsushi Noudo2121.28
Chisako Muramatsu331735.56
Akira Sawada414620.99
Takeshi Hara563979.10
Tetsuya Yamamoto610820.79
Hiroshi Fujita7808.59