期刊
DIAGNOSTICS
卷 11, 期 11, 页码 -出版社
MDPI
DOI: 10.3390/diagnostics11112017
关键词
blood vessel segmentation; curvelet transform; Jerman filter; mean-C thresholding
资金
- Rector of the Silesian University of Technology [09/020/RGJ21/0007]
Retinal blood vessels are analyzed for ophthalmic diseases using the Jerman filter and curvelet transform to improve structure visualization and data recovery. The fusion of curvelet transform and the Jerman filter achieves good segmentation accuracy for retinal blood vessels. The method shows better performance and faster implementation compared to similar approaches in existing literature.
Retinal blood vessels have been presented to contribute confirmation with regard to tortuosity, branching angles, or change in diameter as a result of ophthalmic disease. Although many enhancement filters are extensively utilized, the Jerman filter responds quite effectively at vessels, edges, and bifurcations and improves the visualization of structures. In contrast, curvelet transform is specifically designed to associate scale with orientation and can be used to recover from noisy data by curvelet shrinkage. This paper describes a method to improve the performance of curvelet transform further. A distinctive fusion of curvelet transform and the Jerman filter is presented for retinal blood vessel segmentation. Mean-C thresholding is employed for the segmentation purpose. The suggested method achieves average accuracies of 0.9600 and 0.9559 for DRIVE and CHASE_DB1, respectively. Simulation results establish a better performance and faster implementation of the suggested scheme in comparison with similar approaches seen in the literature.
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