Virtual reality system free viewpoint switching method

A virtual reality, free technology, applied in image data processing, instruments, etc., can solve problems such as high hardware requirements, jumping, and complex viewing angle transformation trajectory algorithms, and achieve the effect of simplifying complexity

Active Publication Date: 2014-06-18
HUIZHOU DESAY AUTOMATION TECH
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Problems solved by technology

The existing method is to directly transform between these two viewpoints, causing the scene to change discontinuously, resulting in a jumping effect
Some methods achieve smooth switching of viewp

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Embodiment Construction

[0015] In order to allow those skilled in the art to better understand the technical solutions of the present invention, the present invention will be further described below in conjunction with the accompanying drawings.

[0016] The invention discloses a method for free viewing angle switching of a virtual reality system, which includes the following steps: (1) establishing space coordinates with the target object as the center of the initial viewpoint and the termination viewpoint; (2) inserting N coordinates between the initial viewpoint and the termination viewpoint Transition viewpoints, where N=1,2,3,….

[0017] Such as figure 1 As shown, when the distances from the initial viewpoint and the terminal viewpoint to the target are equal, the radius-invariant spherical model can be used at this time, the switching path of the viewpoint can be centered on the target, and the distance R between the target and the initial viewpoint is the radius. Build a sphere model. Initial v

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Abstract

The invention discloses a virtual reality system free viewpoint switching method. The virtual reality system free viewpoint switching method comprises the following steps: firstly, space coordinates are established for an initial viewpoint and a terminate viewpoint with a target object serving as the center; secondly, N transition viewpoints are inserted between the initial viewpoint and the terminate viewpoint, wherein N=1, 2, 3..., and the viewpoints are inserted through the following method; thirdly, a spherical model is established according to the coordinates of the initial viewpoint and the coordinates of the terminate viewpoint, wherein a radius-invariable spherical model or a radius-gradual-change spherical model is selected as the spherical model; fourthly, coordinate values of the transition viewpoints are calculated according to the spherical model, so that a viewpoint switching path from the initial viewpoint to the terminate viewpoint is obtained. According to the virtual reality system free viewpoint switching method, the complexity of transition viewpoint coordinate calculation on a circular arc between two points is lowered through an outer trackball; the radius-gradual-change spherical model is adopted with respect to different distances from a three-dimensional scene (the target object), so that smooth viewpoint switching is realized.

Description

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Claims

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Application Information

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Owner HUIZHOU DESAY AUTOMATION TECH
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