Retinal Vessel Segmentation Based on Multiscale Matched Filtering.
10.3969/j.issn.1671-7104.2020.02.003
- Author:
Ye ZHANG
1
;
Yongde ZHANG
1
;
Xianzheng SHA
1
Author Information
1. School of Public Basic, China Medical University, Shenyang, 110122.
- Publication Type:Journal Article
- Keywords:
matched filtering;
retinal vessel segmentation;
two-dimensional maximum entropy
- MeSH:
Algorithms;
Entropy;
Humans;
Image Processing, Computer-Assisted;
Retinal Vessels/diagnostic imaging*
- From:
Chinese Journal of Medical Instrumentation
2020;44(2):108-112
- CountryChina
- Language:Chinese
-
Abstract:
Retinal vascular function is complex, morphological structure varies from person to person, and is susceptible to vascular diseases and systemic vascular diseases. Its accurate segmentation is of great significance for disease diagnosis and identification. In this paper, a multi-scale matching filtering algorithm is proposed for the uneven size of retinal blood vessels. On the basis of the traditional singlescale Gaussian matching filter, multiscale Gaussian matched filters with two sizes are used to enhance grayscale images. Enhancement is performed, and the superimposed image is binarized using a twodimensional maximum entropy threshold segmentation algorithm. The algorithm is tested in the DRIVE database with sensitivity, specificity and accuracy of 0.803, 0.959, 0.981, respectively. Comparing with the traditional algorithm, the algorithm has high sensitivity, fast running speed and rich details of segmentation results.
