Space ranging method and system for mixed reality equipment

Abstract

The invention relates to a space ranging method and system for mixed reality equipment. The method includes the following steps that an object to be measured is selected; any point on the object to be measured is selected as a reference point; the distance between the reference point and the mixed reality equipment is measured to obtain the reference distance; a gray level field depth graph of the object to be measured is obtained; the distance between any point on the object to be measured and the mixed reality equipment is obtained according to the reference distance and the gray level field depth graph. The space ranging method and system for mixed reality equipment can fast obtain the distance of any point on the surface of the object to be measured and have the advantages of being high in ranging speed and high in ranging accuracy.

Description

technical field [0001] The present invention relates to the field of mixed reality, in particular to a space ranging method and system for mixed reality equipment. Background technique [0002] Mixed reality products are superimposing computer-generated images with the real world, displaying images in virtual space in real space, so that human eyes can see virtual objects in the real world. Among them, the more representative product is HoloLens, a wearable mixed reality computing device released by Microsoft. [0003] Currently, there are mainly the following ranging methods for mixed reality products: [0004] 1) Distance measurement by stereo vision technology. [0005] Obtain the depth map of the surrounding environment through two cameras, and get the distance between the object in the real scene and the camera from the image data of the two cameras, but this method is not enough to measure only one depth map, it is only true at a certain moment The mapping of the sc...

AI Technical Summary

Problems solved by technology

[0009] The principle of distance detection by the ultrasonic sensor is to emit ultrasonic waves and then detect the emitted ultrasonic waves, and at the same time calculate the distance of the object according to the speed of sound, but ultrasonic ranging has the following disadvantages: the speed of sound is easily disturbed by temperature and wind direction; Giving absorption; inaccurate ranging in a closed space, etc.

[0010] Therefore, the existing ranging methods or devices have certain defects when applied to mixed reality devices, and there is an urgent need for a ranging technology that can quickly and accurately measure distances and quickly obtain the distance of any point on the surface of an irregular object.

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