Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4976481 | Journal of the Franklin Institute | 2007 | 14 Pages |
Abstract
Results show that the use of histogram matched (HM) image give better performance than using the green channel image when employing the two-dimensional matched filter to detect retinal blood vessels. At specificity of 90%, in case of abnormal images, sensitivity increased from 76% when using the green channel image to 82% when using the HM image compared with 81% when using the piece-wise threshold probing method. In case of normal images, at the same specificity, the sensitivity obtained when using green channel image or HM image was 87% compared with 88% for the piece-wise threshold probing method.
Related Topics
Physical Sciences and Engineering
Computer Science
Signal Processing
Authors
Nancy M. Salem, Asoke K. Nandi,