Method and system for obtaining image distortion rule of virtual reality equipment, and terminal equipment

Abstract

The invention relates to the field of virtual reality, in particular to a method and a system for obtaining the image distortion rule of virtual reality equipment, and terminal equipment, and is used for mutual transformation between the normal image and the distortion image of the virtual reality equipment. The method for obtaining the image distortion rule of the virtual reality equipment comprises the following steps that: obtaining the Cartesian coordinate of the randomly-selected point of the normal image and the Cartesian coordinate of the corresponding point of the distortion image; through a spherical model, transforming the Cartesian coordinates into polar coordinates; and according to values obtained before and after a radius vector in each polar coordinate is subjected to distortion, obtaining the curvature radius of the spherical model. By use of the method, through the calculation of the picture twisting law of the corresponding VR (Virtual Reality) equipment, under a situation that one of the normal image or the distortion image is known, the coordinate of the point of other corresponding image can be quickly obtained, and convenience is brought to the picture data measurement of the virtual reality equipment and support for the virtual reality equipment.

Description

technical field [0001] The invention relates to the field of virtual reality, in particular to a method, a system and a terminal device for acquiring the image distortion rule of a virtual reality device. Background technique [0002] VR (Virtual Reality, that is, virtual reality technology), is to use computer simulation to generate a three-dimensional virtual world, providing users with simulation of vision and other senses, so that users feel as if they are in the scene, and can simulate real scenes to observe three-dimensional space without limitation things within. [0003] The hardware of different VR devices uses different distortion principles, and many devices use aspheric mirrors. The same VR image presentation method has completely different experiences in different devices. Some devices will have serious deformation, which will cause people to feel dizzy. [0004] Image distortion errors caused by optical lenses such as lenses can be divided into three types, ra...

AI Technical Summary

Problems solved by technology

The existing technology has the following disadvantages: 1. It is mainly aimed at the spherical surface to the plane instead of the commonly used plane to spherical surface in VR, mainly because the calculation complexity will be increased if it is simply derived from the reverse calculation of the projection method; 2. The partial projection method, For example, the bonne projection (bonne projection), its plane is a complex heart shape rather than the rectangle required in virtual reality applications such as virtual reality games, so it has no use value in virtual reality applications such as virtual reality games

Images