Myopia prevention method and system based on video induction technology

Abstract

The invention is applicable to the technical field of video induction, and provides a myopia prevention method based on a video induction technology. The method comprises the following steps of: shooting a main image in real time, and identifying and acquiring a face image in the main image; recognizing and calculating position coordinates of left and right eyeballs in the face image, and calculating fixation angles of the left and right eyeballs through the position coordinates; calculating camera shooting distances from the left eyeball and the right eyeball to a camera shooting unit, and respectively calculating eye use distances from the left eyeball and the right eyeball to a fixation point according to the camera shooting distances and the fixation angle; and analyzing whether the eye use distances and the stay time of the eye use distances exceed corresponding preset prevention thresholds or not, and if so, generating feedback reminding information to remind a user. The invention further provides a myopia prevention system based on the video induction technology. Therefore, the actual eye use distance between the eyes of the user and the gazed point can be updated in real time, the reading posture of the user can be reminded and corrected in time, and then the effect of preventing myopia is achieved.

Description

technical field [0001] The invention relates to the field of video sensing technology, in particular to a method and system for preventing myopia based on video sensing technology. Background technique [0002] The proportion of Chinese teenagers suffering from myopia is the highest in the world. According to a report published by the National Health Commission at the end of April 2019, the national rate of myopia among adolescents and children is as high as 53.36%, and the proportion of myopia increases with age. About 81% of high school students suffer from myopia. Preventing myopia has become a major issue in the healthy growth of today's adolescents and children. [0003] Domestic and foreign studies generally believe that incorrect eye use can cause myopia in adolescents and children, including: 1. Eyes used too close together; 2. Eyes used for too long; 3. Left and right eyes used unevenly. Improper use of the eyes will lead to increased pressure on the eyeball muscl...

AI Technical Summary

Problems solved by technology

This existing technology needs to be checked for the first time before use to obtain standard images for distance judgment. It lacks an automatic depth sensing system to obtain actual depth and distance data, and cannot automatically perform eye distance detection as stipulated in the eye protection guidelines; at the same time , this existing technology only detects the distance between the user and the camera, and does not accurately detect the actual distance between the left and right eyes of the user and the gaze point such as the book on the desktop; if the user moves the camera device or the position of the book on the desktop during use, this prior art The standard images relied on will no longer be of comparative value, and the distance judgments made will be inaccurate

[0005] In summary, there are many problems in the actual use of existing methods, so it is necessary to improve

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