Research on the System for Fire and Personal Evacuation of Ancient Building Based on Virtual Simulation

2014 ◽  
Vol 1010-1012 ◽  
pp. 284-287 ◽  
Author(s):  
Yi Lin Bei ◽  
De Yun Yang ◽  
Xiang Ren
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Market Value ◽  
Virtual Simulation ◽  
Display System ◽  
Virtual Reality Technology ◽  
Historic Building ◽  
Three Dimensional Display ◽  
Three Dimensional Models ◽  
Set Up

With the help of three-dimensional display system and interactive device, virtual reality technology can make people have the feeling of being personally on the scene intuitionally. This paper aims to set up three-dimensional models of ancient building complex and crowds, and simulate the three-dimensional visualization of fire scene’s spreading in historic building and crowd’s evacuation. The system uses FDS to simulate and collect information, designs to evacuate calculation engine and simulates distribution of scenes concerned and personnel behavior feature through virtual reality performance module. The experiment indicates that the system can be used for virtual wandering of scenic spots of ancient architectural complex, and simulate fireproofing scenes, which not only possesses great market value, but also provides decision basis for relevant departments.

A Correction Method for Non-Vertical View Angle Three-Dimensional Display

2014 ◽  
Vol 513-517 ◽  
pp. 3882-3885
Author(s):  
Tian Qi Zhao ◽  
Xun Bo Yu ◽  
Xin Zhu Sang ◽  
Chong Xiu Yu ◽  
Da Xiong Xu ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Correction Method ◽  
Display System ◽  
Video Images ◽  
Three Dimensional Display

An non-vertical stereoscopic 3-D display method by changing the parallax value of the parallax images is proposed. This method is capable of displaying virtual reality with high-immersion sense because the observing depth only depends on the parallax value. An experimental 3-D display system capable of producing high-immersion and virtual reality video images at 45 degree is developed. Furthermore, the effectiveness of the method is demonstrated by using this system.

The Application of Virtual Reality Technology in the Housing Display System

2012 ◽  
Vol 588-589 ◽  
pp. 1320-1323
Author(s):  
Li Xia Wang
Keyword(s):  
Virtual Reality ◽  
Detailed Analysis ◽  
Real Time ◽  
System Architecture ◽  
Three Dimensional ◽  
Display System ◽  
Special Effect ◽  
Virtual Reality Technology ◽  
The Real ◽  
Multigen Creator

This paper takes the virtual reality technology as a core, has established the housing virtual reality roaming display system, Under the premise of the detailed analysis of system architecture, We focus on how to form the terrain database and the scenery three-dimensional database by using the MultiGen Creator, and call OpenGVS through MSVC to carry on the real-time scene control and the method of the complex special effect realization.

Virtual Reality Technology in Computer-Aided Production Engineering

2011 ◽  
pp. 562-565 ◽  
Author(s):  
Vladimír Modrák ◽  
Jozef Novák Marcincin
Keyword(s):  
Virtual Reality ◽  
Computer Games ◽  
Collaborative Work ◽  
Three Dimensional ◽  
3D Models ◽  
Virtual Reality Technology ◽  
Web Based ◽  
Flight Simulators ◽  
Internet Environment ◽  
Three Dimensional Models

After applications of virtual reality (VR) in the realm of flight simulators and computer games a need to exercise these technologies in industry is rising significantly. Nowadays one of the typical domains of using a virtual reality is designing and prototyping in automotive and air industry. A practical solution for a virtual model is using a virtual reality modeling language (VRML) that supports the distribution of three-dimensional models over the Internet. Web based virtual reality technology offers possibilities for sharing virtual models for supporting collaborative work and concurrent engineering. There are more standardized tools for virtual reality technology distributing 3D models by VRML. Another possible solution for exploiting an Internet environment through VRML is using a non-standard software package on PC basis created for 3D simulation and programming of automated workplaces, robots and other peripheral devices. The article is describing procedures for implementation of VRML 2.0 into software ROANS, which has been created in another programming language than VRML versions.

scholarly journals Use of virtual reality for pre-surgical planning in separation of conjoined twins: A case report

2019 ◽  
Vol 233 (12) ◽  
pp. 1327-1332 ◽  
Author(s):  
Bethany Juhnke ◽  
Alex R Mattson ◽  
Daniel Saltzman ◽  
Anthony Azakie ◽  
Eric Hoggard ◽  
...  
Keyword(s):  
Virtual Reality ◽  
Surgical Planning ◽  
Three Dimensional ◽  
Conjoined Twins ◽  
Stereoscopic Display ◽  
Spatial Awareness ◽  
Virtual Reality Technology ◽  
Interatrial Communication ◽  
Three Dimensional Models ◽  
Surgical Teams

We describe the use of virtual reality technology for surgical planning in the successful separation of thoracopagus conjoined twins. Three-dimensional models were created from computed tomography angiograms to simulate the patient’s anatomy on a virtual stereoscopic display. Members of the surgical teams reviewed the anatomical models to localize an interatrial communication that allowed blood to flow between the two hearts. The surgical plan to close the 1-mm interatrial communication was significantly modified based on the pre-procedural spatial awareness of the anatomy presented in the virtual visualization. The virtual stereoscopic display was critical for the surgical team to successfully separate the twins and provides a useful case study for the use of virtual reality technology in surgical planning. Both twins survived the operation and were subsequently discharged from the hospital.

scholarly journals Embedded Design of 3D Image Intelligent Display System Based on Virtual Reality Technology

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Liang Li
Keyword(s):  
Image Processing ◽  
Virtual Reality ◽  
Structured Light ◽  
Three Dimensional ◽  
Measurement Technology ◽  
3D Image ◽  
Display System ◽  
Virtual Reality Technology ◽  
Dimensional Measurement ◽  
Three Dimensional Measurement

The previous 3D image intelligent display system is large in size and poor in accuracy, and the display effect and synchronization cannot meet the needs of users. Aiming at this phenomenon, a 3D image embedded intelligent display system based on virtual reality technology is designed. In recent years, with the rapid development of computer technology, three-dimensional measurement technology has become increasingly mature, and three-dimensional information technology has emerged in different fields in real life. With the development of computer science and automatic control technology, more and more intelligent robots appear in production and life. As an important subsystem of intelligent robot systems, the vision system is also receiving more and more attention. The three-dimensional imaging system projects a structured grating on the surface of the target object, uses a digital sensor to collect the deformed structured light image modulated by the surface of the object, and comprehensively uses image processing technology and precision measurement technology to achieve noncontact three-dimensional measurement of the object. This method of number of three-dimensional coordinates has the advantage of not being damaged, high efficiency, high degree of automation, low cost, etc. It has very important significance and broad application prospects for improving product quality and manufacturing efficiency and reducing production costs. Through the investigation and analysis of the existing 3D image intelligent display system embedded, this paper designs and realizes the 3D image intelligent display embedded system, which includes a high-speed structured light projection module, an embedded image acquisition and processing module, and a 3D reconstruction module. Among them, the embedded 3D imaging image acquisition and processing system is an important part of the embedded 3D measurement system, which provides a certain theoretical and practical basis for future in-depth research. The experimental results in this article show that the acquisition module takes 1.934 s to obtain the folded phase of the measured object through phase demodulation and the algorithm, while the phase demodulation and unfolding takes 2.068 s. Therefore, the algorithm needs to be further optimized to speed up the image processing speed and reflect the real-time effect of the system.

scholarly journals PO-1127 Using three-dimensional virtual reality technology to present dose plan to patients

2015 ◽  
Vol 115 ◽  
pp. S612
Author(s):  
R. Lysemose Poulsen ◽  
K. Seiersen ◽  
D. Oksbjerre Mortensen ◽  
C. Grau ◽  
A. Boejen
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Virtual Reality Technology

Integrated Design and Evaluation of Solar Energy and Building Based on Virtual Simulation Technology

2013 ◽  
Vol 368-370 ◽  
pp. 1237-1241
Author(s):  
Qian Kun Wang ◽  
Wei Wei Zuo ◽  
Shi Pan
Keyword(s):  
Virtual Reality ◽  
Solar Energy ◽  
Integrated Design ◽  
Evaluation Process ◽  
Energy Simulation ◽  
Virtual Simulation ◽  
Simulation Technology ◽  
Virtual Reality Technology ◽  
Technology Application ◽  
Organic Combination

Based on analysis of the application status of the virtual reality technology and energy simulation technology in energy-efficient building, authors put organic combination with the virtual reality technology and energy simulation technology. Application methods of virtual simulation are discussed in integrated design of solar energy and building. And the evaluation process of solar energy and building integrated design is put forward. At the same time, according to the software of 3D Studio MAX and ECOTECT, the paper studies the case of solar energy and building integrated design virtual simulation.

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