Virtual reality system space positioning method based on depth perception

Abstract

The invention discloses a virtual reality system space positioning method based on depth perception. The method comprises the steps that firstly, a fixation point perceived by a human vision system istracked through a sight tracking system integrated with VR head-mounted equipment, and a depth perception model when a user fixes at a target object in a virtual environment is constructed based on the fixation point; secondly, an internal reference matrix relative to visual perception is established according to the gaze point so as to calculate the 2D projection positions of the 3D fixation points on the image and calculate the position of the target point gazed by human eyes accordingly; then the depth perception difference set by the VR system and formed the visual system is quantified; and finally the position of the virtual camera is compensated according to the depth perception difference to obtain the position of the virtual camera in the virtual space perceived by the visual system. The deep perception difference of the visual system in the virtual environment is considered, and the perception position of the user in the virtual scene is directly positioned so that the user can interact with the virtual object more accurately, and the interaction experience of the user is improved.

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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