Retinal vessel segmentation method and device based on guided filtering

A retinal blood vessel and guided filtering technology, which is applied in the field of retinal blood vessel segmentation method and device based on guided filtering, can solve the problems of early screening of difficult diseases and heavy workload

Active Publication Date: 2021-11-16
SOUTH CHINA NORMAL UNIVERSITY
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Problems solved by technology

Traditional screening has a heavy workload and is easily affected by doctors' subjective

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  • Retinal vessel segmentation method and device based on guided filtering
  • Retinal vessel segmentation method and device based on guided filtering
  • Retinal vessel segmentation method and device based on guided filtering

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Embodiment Construction

[0053]In order to make the purpose, technical solution and advantages of the present application clearer, the embodiments of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0054] It should be clear that the described embodiments are only some of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the embodiments of the present application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the embodiments of the present application.

[0055] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the embodiments of the present application. The singular forms "a", "said" and "the" used in the embodiments of this application and the appended claims are also intended to include p...

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Abstract

The invention relates to a retinal vessel segmentation method and device based on guided filtering. The retinal vessel segmentation method based on guided filtering comprises the following steps: preprocessing a color fundus image to enhance the contrast; performing phase consistency feature extraction and multi-scale line operator feature extraction on the preprocessed image; taking the response diagram of the multi-scale line operator as a guide image, and performing guide filtering on the phase consistency characteristic response diagram to obtain a filtered and output characteristic response diagram; using an FCM clustering algorithm to construct a membership matrix for clustering the output feature response map to obtain two clustering centers, and performing classification according to the membership of pixel sample points belonging to the two clustering centers to obtain a retinal blood vessel segmentation map; and performing denoising processing on the retinal blood vessel segmentation image to obtain a final retinal blood vessel segmentation result image. According to the retinal blood vessel segmentation method based on guided filtering, the detection capability of small blood vessels with low contrast is improved.

Description

technical field [0001] The invention relates to the field of retinal fundus image segmentation, in particular to a method and device for segmenting retinal blood vessels based on guided filtering. Background technique [0002] Changes in the morphological properties of retinal blood vessels in fundus images can provide a basis for the diagnosis and screening of fundus diseases such as glaucoma and age-related macular degeneration, as well as systemic diseases such as diabetes and cardiovascular and cerebrovascular diseases. Traditional screening has a heavy workload and is easily affected by doctors' subjective factors, making it difficult to achieve large-scale early screening of the above diseases. Therefore, building a computer-aided system based on fundus image analysis is of great significance in the auxiliary diagnosis and screening of the above diseases, and retinal vessel segmentation is a key link in building this system. [0003] The existing retinal vessel segmen...

Claims

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Application Information

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IPC IPC(8): G06T7/136G06T7/62G06T7/11G06K9/62G06K9/46
CPCG06T7/136G06T7/11G06T7/62G06T2207/10024G06T2207/20081G06T2207/30041G06F18/23G06F18/241
Inventor 何正伟许言兵徐苗
Owner SOUTH CHINA NORMAL UNIVERSITY
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