A spatial positioning method of virtual reality system based on depth perception

Abstract

The invention discloses a space positioning method for a virtual reality system based on depth perception. The method first tracks the gaze point perceived by the human visual system through the eye tracking system integrated with the VR head-mounted device, and builds a depth perception model when the user gazes at the target object in the virtual environment based on the gaze point; secondly, the gaze point establishes an internal reference for relative visual perception Matrix, so as to calculate the 2D projection position of the 3D gaze point on the image, and on this basis, calculate the target point position of human gaze; then quantify the depth perception difference between the VR system setting and the visual system; finally, the depth perception difference The position of the virtual camera is compensated to obtain the position in the virtual space perceived by the visual system. The present invention considers the depth perception difference of the visual system in the virtual environment, directly locates the user's own perception position in the virtual scene, enables the user to interact more accurately with the virtual object, and improves the user's interactive experience.

Description

technical field [0001] The invention relates to the technical field of virtual reality, in particular to a space positioning method for a virtual reality system based on depth perception. Background technique [0002] Spatial positioning technology in virtual reality system is a key technology to connect physical space and virtual space and realize the interaction between human and virtual scene. [0003] Positioning in virtual reality refers to determining the user's own position in the virtual space. The existing spatial positioning method locates the absolute spatial pose of the user in the physical space, and feeds it back to the VR content, and realizes positioning corresponding to the spatial position of the VR virtual camera. It is mainly divided into two categories: Outside-in and Inside-out spatial positioning methods. The Outside-in method locates the position of the head-mounted display (HMD) through an external device placed in the physical space, and synchroni...

AI Technical Summary

Problems solved by technology

However, affected by key issues such as rendering technology and computer image display, as well as differences in the binocular data of different users, the depth information of the specific stereoscopic image perceived by the user and the depth information set by the VR system obtained by viewing the fixed-observation binocular virtual camera If there is a difference, the position of the virtual camera cannot be equal to the position of the human relative to the virtual scene perceived by binocular vision

Even if the posture of oneself in the physical space is correctly positioned and fed back to the VR system in real time, the user cannot correctly perceive its own position in the virtual space, cannot correct the positional relationship between itself and the virtual target, and cannot interact correctly

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