Binocular AR (Augmented Reality) head-mounted display device and information display method thereof

Abstract

The invention discloses a binocular AR (Augmented Reality) head-mounted device information display method. On the premise of presetting mapping relations fc-s and fd-i in the head-mounted device, the position of a target object on an image photographed by a camera is acquired in real time through an image tracking method, the position is mapped to a screen coordinate system of the head-mounted device, and a left image / right image display position is calculated; and then, through a monocular vision distance measurement method, a camera imaging ratio is used for calculating the distance between the target object and the camera in real time, the distance between the left image and the right image is thus calculated, and the display position of an image at the other side is further calculated. Correspondingly, the invention also provides a binocular AR head-mounted device information display method and an augmented reality information display system. The method of the invention is high in reliability and low in cost. The traditional field depth adjustment starts from changing the image distance of an optical component, the traditional thinking is broken, the optical device structure is not changed, field depth adjustment is realized through calculating the left image / right image display position, creativity is realized, and compared with a method of changing an optical focal length, the method is more practical.

Description

technical field [0001] The present invention relates to the technical field of head-mounted displays, in particular to a binocular AR head-mounted display device and an information display method thereof. Background technique [0002] With the rise of wearable devices, various head-mounted display devices have become the research and development hotspots of major giant companies, gradually entering people's field of vision. Head-mounted display devices are the best application environment for Augmented Reality Technology (AR for short), which can present virtual information in the real environment through the head-mounted device window. However, most existing AR head-mounted display devices currently have Information superposition only considers the correlation with the X and Y axis coordinates of the target position, but does not calculate the depth information of the target, so that the virtual information floats in front of the human eye, the degree of integration with th...

AI Technical Summary

Problems solved by technology

Head-mounted display devices are the best application environment for Augmented Reality Technology (AR for short), which can present virtual information in the real environment through the head-mounted device window. However, most existing AR head-mounted display devices currently have Information superposition only considers the correlation with the X and Y axis coordinates of the target position, but does not calculate the depth information of the target, making the virtual information float in front of the human eye, the degree of integration with the environment is not high, and the user experience is not good

And when the user's line of sight switches between the target object and the superimposed AR information, since the two have different depths within the user's visual range, it is necessary to frequently adjust the focus of the eyes to see the content clearly, which will increase the burden on the user's eyes. Feeling uncomfortable after prolonged use

[0003] In the prior art, there are also methods for adjusting the depth of field on the head-mounted device. Most of them use mechanical methods to adjust the optical structure of the optical lens group, thereby changing the image distance of the optical original, and then realizing the adjustment of the depth of field of the virtual image. This method makes the head-mounted device Large volume, high cost and difficult to control precision

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