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Optic disc positioning method and system in fundus image based on best sibling similarity

A fundus image and positioning method technology, applied in image analysis, image enhancement, image data processing and other directions, can solve the problems of failure to detect and locate the optic disc in the lesion area, interference of the brightness and integrity of the optic disc, affecting the accuracy of the optic disc positioning, etc. High computational complexity, high operating efficiency, and the effect of overcoming interference

Active Publication Date: 2020-09-29
SHANDONG NORMAL UNIV
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Problems solved by technology

However, when the lesion area in the fundus image is similar to the brightness of the optic disc, it is very likely to detect the lesion area by mistake only by the brightness and shape of the optic disc, resulting in failure to locate the optic disc. The impact causes the brightness and integrity of the optic disc to be disturbed and destroyed, which also seriously affects the accuracy of the optic disc positioning

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  • Optic disc positioning method and system in fundus image based on best sibling similarity
  • Optic disc positioning method and system in fundus image based on best sibling similarity
  • Optic disc positioning method and system in fundus image based on best sibling similarity

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[0044] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0045] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0046] Such as figure 1 As shown, in a fundus image optic disc positioning method based on Best-Buddies Similar...

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Abstract

The invention discloses a fundus image optic disc positioning method and system based on the best sibling similarity, including the following steps: Step (1): Select a healthy fundus image, and extract the minimum circumscribed rectangle according to the minimum circumscribed rectangle containing the optic disc area of ​​the healthy fundus image The image in the rectangle is used as the template image; step (2): preprocess both the template image and the image to be matched; step (3): calculate the best sibling similarity between the template image and the image to be matched; step (4) : Search in the image to be matched, and the region corresponding to the maximum similarity of the best sibling is the final positioning result. A new concept is proposed for optic disc positioning in fundus images and better results have been achieved.

Description

technical field [0001] The invention relates to a method and a system for locating an optic disk of a fundus image based on Best-Buddies Similarity. Background technique [0002] In recent years, the positioning and identification of physiological structures based on fundus images has been widely studied and applied, which is of great significance and role in the timely prevention and diagnosis of blinding ophthalmic diseases such as cataract and glaucoma. However, due to the increasing number of patients suffering from eye diseases, and the number of ophthalmologists cannot meet the needs of a large number of patients, more and more experts in the field of computer vision and medicine pay attention to and research computer automatic recognition and diagnosis systems based on medical images. In fundus images, the optic disc is one of the most important physiological structures, so efficient and accurate positioning of the optic disc is a very important step in the research w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06K9/62
CPCG06T7/0014G06T2207/30041G06F18/22
Inventor 郑元杰侯康宁连剑贾伟宽赵艳娜
Owner SHANDONG NORMAL UNIV
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