A method of refraction screening based on mobile phone and external equipment

Abstract

The present invention provides a refraction screening method based on a mobile phone and an external device. The refraction screening method based on a mobile phone and an external device detects the face of a target object through the mobile phone, thereby extracting the face of the target object. Based on the characteristic information, after determining the parallel beam projected by the external device, the spot image formed by the refraction of the parallel beam entering the eye of the target object is obtained, and finally, based on the deep learning mode, the spot image is matched. In this way, the refractive information of the eye of the target object is determined.

Description

technical field [0001] The invention relates to the technical field of visual acuity detection, in particular to a refraction screening method based on mobile phones and external devices. Background technique [0002] Visual acuity is an important indicator used to characterize eye health. People need to pay attention to eye health in order to maintain good vision in work and life. However, as people's work and life rely more and more on electronic products, and people cannot maintain good eye habits at all times, this causes people's vision to seriously decline. In addition, with the popularization of electronic products and the lack of widespread dissemination and attention to eye hygiene knowledge, vision problems are showing a trend of younger age. Among many vision problems, myopia and astigmatism are relatively common vision problems. Among them, myopia can be divided into pseudomyopia and true myopia. Pseudomyopia refers to temporary myopia caused by excessive eye u...

AI Technical Summary

Problems solved by technology

Although the vision optometry instrument has good and accurate visual acuity measurement performance, but the vision optometry instrument is bulky and expensive, and it is usually only configured in related institutions such as hospitals or optical shops.

People can only go to these institutions to take corresponding vision tests to know their own vision conditions, which is extremely inconvenient for people who need frequent vision tests, and the operation process of optometry is more complicated and time-consuming , special operators are needed to operate the vision refractometer, which is not conducive to shortening the time of vision testing and improving the efficiency of vision testing

It can be seen that the existing vision detection mode does not enable people to detect and acquire the state of vision anytime, anywhere and quickly, which is not convenient for improving the convenience and accuracy of vision detection

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