Method and system for calculating diameter of arteriovenous blood vessel of fundus retina

A calculation method and arteriovenous technology, applied in the field of image processing, can solve the problem of low efficiency of obtaining retinal arteriovenous blood vessel diameter parameters, and achieve the effect of eliminating background differences, small errors, and avoiding calculation errors.

Pending Publication Date: 2021-08-17
BEIJING AIRDOC TECH CO LTD
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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method and system for calculating the diameter of retinal

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  • Method and system for calculating diameter of arteriovenous blood vessel of fundus retina
  • Method and system for calculating diameter of arteriovenous blood vessel of fundus retina
  • Method and system for calculating diameter of arteriovenous blood vessel of fundus retina

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Embodiment Construction

[0070] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0071] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0072] It should also be understood that the terminology used ...

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Abstract

The invention discloses a fundus retina arteriovenous blood vessel diameter calculation method and system. The method comprises the following steps: preprocessing a color fundus retina image; constructing a fundus retina arteriovenous semantic segmentation model based on iterative semi-supervised learning, and performing arteriovenous segmentation on the preprocessed image to obtain an arteriovenous segmentation model; preprocessing retina images in the SUSCep-SYSU data set and the ORIGA data set, and constructing a fundus optic disc detection and positioning model based on YOLO v3; based on the arteriovenous segmentation model and the fundus optic disc detection and positioning model, calculating the number of intersected pixels between the arteriovenous vascular plumb line and the blood vessel to obtain the arteriovenous vascular diameter, and calculating the blood vessel diameter by adopting the arteriovenous diameter ratio. According to the method, accurate retinal artery and vein blood vessel segmentation and optic disc detection and positioning can be realized, and the diameter of the fundus retinal blood vessel can be effectively, accurately and automatically calculated.

Description

technical field [0001] The invention belongs to the technical field of image processing, and in particular relates to a method and system for calculating the diameter of fundus retinal arteries and veins. Background technique [0002] At present, the acquisition of fundus arteriovenous vessel diameter and diameter ratio parameters mostly comes from manual extraction of arteriovenous vessels by experts or with the help of semi-automatic software, artificial selection of vessel segments and calculation of diameter and diameter ratio. Therefore, it is very meaningful to study the automatic extraction of retinal arteries and veins, automatic positioning of the calculation area of ​​the diameter of the blood vessels to be measured, and calculation of the diameter and diameter ratio of the arteries and veins. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method and system for calculating the diameter of retinal art...

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Application Information

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IPC IPC(8): G06T7/00G06T7/11G06T7/12G06T7/13G06K9/34G06N3/04G06N3/08
CPCG06T7/0012G06T7/11G06T7/12G06T7/13G06N3/08G06T2207/20032G06T2207/10024G06T2207/20081G06T2207/30041G06V10/267G06N3/045
Inventor 祖建郭佩宏胡娜张大磊
Owner BEIJING AIRDOC TECH CO LTD
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