A macula lutea detection method and a storage device

A detection method and macular technology, which is applied in the field of image analysis, can solve the problems of slow macular detection, low efficiency, and low accuracy, and achieve the effects of speeding up detection, ensuring accuracy and reliability, and improving efficiency

Active Publication Date: 2019-01-15
FUZHOU YIYING HEALTH TECH CO LTD
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Problems solved by technology

[0004] For this reason, it is necessary to provide a macular detection method to solve the problems of slow macular detection speed, low efficiency and low accuracy in the prior art

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  • A macula lutea detection method and a storage device
  • A macula lutea detection method and a storage device
  • A macula lutea detection method and a storage device

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Embodiment Construction

[0025] In order to describe in detail the technical content, structural features, achieved objectives and effects of the technical solution, the following detailed description will be given in conjunction with specific embodiments and accompanying drawings.

[0026] See figure 1 , First of all, make the following explanations of some terms involved in this implementation:

[0027] Optic disc: The full name is the optic disc, also called the optic nerve head. The retina has a light red disc-like structure with a diameter of about 1.5mm and a clear boundary from the macula to the nose about 3mm, called the optic disc, or optic disc for short.

[0028] Macula: 0.35cm and slightly below the temporal side of the optic disc of the fundus, in the optical central area of ​​the human eye, which is the projection point of the vision axis.

[0029] In this embodiment, a macula detection method can be applied to a storage device. In this embodiment, a storage device can be a smart phone, a tablet...

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Abstract

The invention relates to the field of image analysis, in particular to a macula lutea detection method and a storage device. The method comprises that steps of: reading a positioning result of an optic disc; reading the blood vessel segmentation result; constructing a first circle with the center point of the optic disc as the center and twice the diameter of the optic disc as the radius; constructing a second circle with the center point of the optic disc as the center and three times the diameter of the optic disc as the radius; setting an annular region of the first circle and the annular region of the second circle as a candidate region of macula; according to the appearance characteristics of macula, constructing an evaluation formula . The evaluation value of the evaluation formula is calculated in the candidate region, and the macular region positioning is completed according to the evaluation value. The whole process of the method is not only dependent on the appearance of macula lutea, does not need scanning a whole image, so that the detection speed is increased. The method is based on the combination of optic disc location and blood vessel segmentation and not only depends on optic disc positioning accuracy, thus ensuring optic disc detection accuracy and reliability.

Description

Technical field [0001] The invention relates to the field of image analysis, in particular to a macula detection method and a storage device. Background technique [0002] The automatic analysis of color retinal fundus images has been widely used in the auxiliary diagnosis of various ophthalmological-related system diseases such as diabetes, hypertension, nephropathy and neurological diseases. In a normal color fundus image, the macula, fovea, optic disc and vascular network are the four main observable features of the fundus. The macula is one of the most important physiological structures that need to be identified on the retinal fundus image. Its positioning The diagnosis of fundus lesions is of great significance. The macula has a fixed distance from the optic disc. The fovea is about 3mm from the temporal edge of the optic disc, and does not contain any blood vessels. In a color fundus image, the macula is usually the darkest approximate circular area. [0003] Compared with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B3/14A61B3/12G06T7/60
CPCA61B3/12A61B3/14G06T7/60G06T2207/30041
Inventor 余轮林嘉雯曹新容薛岚燕
Owner FUZHOU YIYING HEALTH TECH CO LTD
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