Automatic analysis method for hemodynamic parameters of ocular capillaries

An analysis method and eye microvascular technology, applied in image analysis, image data processing, image enhancement, etc., can solve problems such as huge workload, limited blood vessels, discontinuous blood vessels, etc., to reduce human-computer interaction, improve accuracy, and process fast effect
CN112164046AActive Publication Date: 2021-01-01美十光学科技(广东)有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
美十光学科技(广东)有限公司
Publication Date
2021-01-01

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Abstract

The invention provides an automatic analysis method for hemodynamic parameters of ocular capillaries. The method comprises the following steps: 1, inputting an image set Io which needs to be subjectedto analysis of hemodynamic parameters of ocular capillaries in a video file containing eye microvessel information; 2, performing image registration on continuous images in the image set Io; 3, performing image segmentation on the registered image to obtain a segmentation mask image set Sr of the eye microvessels; 4, obtaining a center line of an eye microvessel in the segmentation mask image setSr; 5, fitting the center line, extracting the edge of the ocular capillaries in the segmentation mask image, and calculating the average diameter, the inner diameter and the outer diameter of the ocular capillaries; 6, forming a space-time image; 7, carrying out histogram equalization processing on the obtained space-time image; 8, performing straight line detection processing on the space-timeimage, performing statistics on the slopes of the obtained straight lines, and obtaining the slope k with the densest distribution; 9, calculating the blood flow velocity Va of the ocular capillaries;and 10, calculating the blood flow and the tube wall stress cutting rate.
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Description

technical field

[0001] The invention relates to the field of parameter analysis of eye microvessels, in particular to an automatic analysis method for hemodynamic parameters of eye microvessels. Background technique

[0002] The eyeball and the brain share the blood supply of the internal carotid artery. Eye microvascular function is a potential indicator of ocular surface inflammation and systemic microvascular disease. effects etc. provide an important basis. With the rapid development of ophthalmic imaging technology in recent years, the advent and development of new imaging technologies such as functional imaging OCT and ocular microvascular function analysis provide important information for the diagnosis and treatment of ophthalmic diseases, and its morphological measurement function has been applied to ocular tissue In the precise analysis of function, it is called a milestone achievement of ophthalmology diagnostic technology. Foreign developed countries have inves...

Claims

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