Wearable equipment for pupil distance detection and implementation method thereof

Abstract

The invention discloses wearable equipment for pupil distance detection and an implementation method thereof. The equipment comprises a benchmark module which is worn on the bridge of the nose and an image processing module; the image processing module at least comprises a camera, a screen and a DSP processing chip; the DSP processing chip conducts focusing according to virtual frames, where the left eye and the right eye are located, in the screen, and reflective spots of the eyes are obtained by finding the two brightest spots in the virtual frames where the left eye and the right eye are located, central positions of the pupils of the left eye and the right eye are found through the reflective spots, and the pupil distance presented in an image and the length of the benchmark module in the virtual frame are obtained through calculation; the actual pupil distance of the centers of the left pupil and the right pupil are calculated according to the data finally. According to the wearable equipment for pupil distance detection and the implementation method thereof, by means of the image processing module with the DSP processing chip, a user can complete the whole measurement process independently without depending on others, and use is made to be more convenient and rapid.

Description

technical field [0001] The invention belongs to the field of smart wearable technology, and relates to a wearable device for pupil detection and its implementation method, in particular to an automatic positioning of the pupil center through a very simple device and a DSP image processing module, and is calculated by perspective distance method of interpupillary distance. Background technique [0002] In the prior art, the following methods are usually used to measure the interpupillary distance: [0003] Pupil distance measuring instrument, see patent publication number CN104042183A. Device modules such as figure 1 shown. The invention uses a single-chip microcomputer control unit to receive the light point signal detected by the sensor, find out the reflection point of the pupil, and then control the hairspring positioning module to align with the reflection point and measure to obtain the pupillary distance. [0004] The disadvantage of this method lies in three aspec...

AI Technical Summary

Problems solved by technology

First of all, this type of interpupillary distance detection must use relatively large professional equipment as a basis, and requires professional medical personnel to measure, and cannot be done by itself; The function of the reflective point has the problem of taking too long and the error is too large; thirdly, the reflective point is not equivalent to the center of the pupil in many cases, which is related to the current lighting environment, and this calculation method will also bring errors

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