• Pak J Med Sci · Jan 2021

    Construction and application of color fundus image segmentation algorithm based on Multi-Scale local combined global enhancement.

    • Yanjie Hao, Hongbo Xie, and Rong Qiu.
    • Yanjie Hao, Associate Chief Physician, Department of Ophthalmology, Jiaozhou Central Hospital of Qingdao, Qingdao, 266300, Shandong, China.
    • Pak J Med Sci. 2021 Jan 1; 37 (6): 1595-1599.

    ObjectiveAiming at the problem of low accuracy in extracting small blood vessels from existing retinal blood vessel images, a retinal blood vessel segmentation method based on a combination of a multi-scale linear detector and local and global enhancement is proposed.MethodsThe multi-scale line detector is studied, and it is divided into two parts: small scale and large scale. The small scale is used to detect the locally enhanced image and the large scale is used to detect the globally enhanced image. Fusion the response functions at different scales to get the final retinal vascular structure.ResultsExperiments on two databases STARE and DRIVE, show that the average vascular accuracy rates obtained by the algorithm reach 96.62% and 96.45%, and the average true positive rates reach 75.52% and 83.07%, respectively.ConclusionThe segmentation accuracy is high, and better blood vessel segmentation results can be obtained.Copyright: © Pakistan Journal of Medical Sciences.

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