A Computational Approach to Edge Detection
IEEE Transactions on Pattern Analysis and Machine Intelligence
Journal of VLSI Signal Processing Systems
An improved matched filter for blood vessel detection of digital retinal images
Computers in Biology and Medicine
IEEE Transactions on Information Technology in Biomedicine - Special section on biomedical informatics
Adaptive image contrast enhancement using generalizations of histogram equalization
IEEE Transactions on Image Processing
Hi-index | 12.05 |
This paper introduces a systematic approach for segmentation of retinal blood vessels towards the diagnosis of proliferative diabetic retinopathy (PDR) from digital fundus images. Here, 2D-Match (Gabor) filters are used on digital fundus images in which the vessels are enhanced by contrast-limited adaptive histogram equalization (CLAHE). A double sided thresholding scheme is then used to segment the vessels. Hysteresis thresholding is performed with the large and small vessels clipped at different intensity levels in order to reconstruct the vessels in the image. This vessel extraction technique leads to high accuracy (93.1%) in comparison with the ground truth images provided in the DRIVE database.