A survey on virtual reality

Abstract

Virtual reality (VR) is a scientific method and technology created during the exploration of the nature by human beings to understand, simulate, and better adapt and use the nature. Based on the analysis on the whole process of VR, this paper presents different categories of VR problems and a type of theoretical expression, and abstracts three kinds of scientific and technical problems in VR field. On the basis of foresaid content, this paper also studies current major research objectives, research results and development trend of VR in the aspects of VR modeling method, VR representation technology, human-machine interaction and devices, VR development suites and supporting infrastructure, as well as VR applications. Finally, several theoretical and technical problems that need to be further studied and solved are addressed.virtual reality, modeling, rendering, human-machine interaction, development suite Based on computer science and relevant scientific technologies, virtual reality (VR) produces a digital environment in which visual perception, sense of hearing, and sense of touch are highly similar to those of actual environment within a certain range. With the help of necessary equipment to interact and interfere with objects in a digital environment, users may have feelings and experiences corresponding to those in the actual environment. VR is a scientific technology for understanding or simulating the nature.With the constant development of social productivity and scientific technologies, the VR technology has found more and more applications in various industries. Now VR has become a new science field. This paper presents an overview of the developing process of VR. First we introduce the thoughts and the related research direction of VR, then we discuss the major contents and current situation of VR research in the aspects of VR modeling, VR representation technology, humanmachine interaction and equipment, VR development suite and supporting environment, as well as VR applications, and indicate several problems of the theory and technology.

Research on Immersive Virtual Assembly Based on Virtual Reality Technology

“…Operator uses necessary equipment to interact with the objects in the digital environment, which creates real-world experience for the operator. Virtual reality is a technique which is used to recognize nature, simulate nature, and make better adaptation to and use of nature [12].…”

A method of 3D modeling and codec

“…For triangle mesh models, topology data give the indices of vertices of each triangle of some sort [27] . The topology encoding is to code the sorted table to make it compatible with the geometry encoding bitstream.…”

The Design and Production of Panoramic Micro-Course Video

“…Virtual reality (VR) is a computer technology that uses headsets, sometimes in combination with physical spaces or multi-projected environments, to generate realistic images, sounds and other sensations that simulates a user's physical presence in a virtual or imaginary environment [4,6]. Using virtual reality technology to show the panoramic video, users can feel that they are fully integrated into the video display environment and have a very real immersive experience.…”