Dynamic projection method and system based on virtual reality

Abstract

The invention relates to the technical field of virtual reality, and discloses a dynamic projection method and system based on virtual reality. The dynamic projection method based on virtual reality comprises the steps of collecting a real space image, and constructing a space three-dimensional model; determining a virtual object to be projected and a real object to be projected and combined by the virtual object, wherein the real object is located in the real space; acquiring characteristic parameters of the real object, and searching a virtual object picture matched with the characteristicparameters according to the characteristic parameters of the real object; and adjusting the projection direction of the projector according to the position relationship between the projector and the real object, and projecting the virtual object picture to the real object in a fixed size. According to the method, the size of the projection image of the virtual object picture can be fixed, virtualreality fusion is coordinated and vivid, and then the user experience is improved.

Description

technical field [0001] The invention relates to the technical field of virtual reality, in particular to a dynamic projection method and system based on virtual reality. Background technique [0002] Virtual reality technology is a computer simulation system that can create and experience a virtual world. It uses a computer to generate a simulated environment. It is a system simulation of multi-source information fusion, interactive three-dimensional dynamic vision and entity behavior that immerses users in into that environment. [0003] With the development of science and technology and the continuous improvement of people's living standards, people's requirements for visual experience are getting higher and higher. On the one hand, people's requirements for the display devices of the human-machine interface are increasingly developing towards the direction of multi-view and large-screen high-resolution; on the other hand, in terms of display effects, people tend to pursu...

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Problems solved by technology

[0004] In the process of implementing the present invention, the inventor found that the related technology has the following problems: in the actual dynamic projection application, if there is an error in the spatial matching between the virtual object and the real object, since the human eye is very sensitive to this error, this This kind of error will make the user feel that the combination of virtual reality is uncoordinated and unrealistic, making the user experience poor

Especially in the dynamic projection of traditional projection equipment, as the distance and angle between the projector and the projection plane change, the size and shape of the projected virtual object image will change accordingly, resulting in the projected The ratio between the virtual object image and the real object in the real space does not conform to the convention, the visual experience is poor, and the original intention of virtual reality fusion cannot be achieved

For example: when the angle between the projector and the projection plane is fixed, it is necessary to project a virtual apple image onto a fruit plate in the real space. When the conventional projection distance is small, the projection display area is small, and the size of the apple becomes smaller. When the projection distance is large, the projection display If the area is large, the size of the apple will increase accordingly, making the size of the virtual apple image and the fruit plate in the real space uncoordinated, and the user's visual experience is not good

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