Intelligent eyesight detecting device with binocular cameras

Abstract

The invention relates to an intelligent eyesight detecting device with binocular cameras. Two cameras are placed in an imaging plane, the two cameras have the same focal length and are connected with a computer through image acquisition cards; the computer is connected with a visual chart display device; the binocular cameras are used for photographing an eyesight detected person; the image acquisition cards are used for acquiring images and detecting a face area in the images and positions of double eyes in the face area; the computer is used for calculating the distance between the center of the double eyes of the detected person and a detection character display screen of the visual chart display device; and the computer is connected with wireless transceiving equipment at the computerend, and the computer wireless transceiving equipment is in wireless communication connection with a wireless human-computer interactive device at the eyesight detected person end. The detecting device can be used for conveniently and accurately detecting the eyesight.

Description

technical field [0001] The invention relates to a three-digit reproduction vision machine, in particular to an intelligent vision detection device. Background technique [0002] Human visual acuity testing is a routine content of health checkups. Existing checking methods can be divided into checking methods using traditional printed eye charts and automatic testing methods using computer multimedia technology. Both of these methods require the subject to be tested at a specific distance in front of the eye chart or the eye chart display, and the size of the detected characters in the eye chart or display is constant, so that when the subject does not see the test due to subjective or objective reasons When being able to participate in the vision test at the above-mentioned specific positions, it will affect the accuracy of the vision test. In response to this problem, in recent years, a vision detection device that uses infrared ranging technology to measure the distance b...

AI Technical Summary

Problems solved by technology

Both of these methods require the subject to be tested at a specific distance in front of the eye chart or the eye chart display, and the size of the detected characters in the eye chart or display is constant, so that when the subject does not see the test due to subjective or objective reasons When you can participate in the vision test at the above-mentioned specific positions, it will affect the accuracy of the vision test

In response to this problem, in recent years, a vision detection device that uses infrared ranging technology to measure the distance between the subject and the eye chart or the eye chart display has appeared, but this type of device cannot distinguish other people or objects in the detection environment, and is not very practical.

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