scholarly journals Immersive 5G Virtual Reality Visualization Display System Based on Big-Data Digital City Technology

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Fei Tian
Keyword(s):  
Virtual Reality ◽  
Big Data ◽  
Visual Experience ◽  
Three Dimensional ◽  
Visual Display ◽  
Digital City ◽  
Display System ◽  
Visualization System ◽  
Display Mode ◽  
Interactive Operations

The virtual reality visual display system creates a realistic virtual product display system, allowing users to swim in a three-dimensional virtual environment and perform interactive operations, fully simulating the process of shopping selection and payment in reality, so that users have an immersive feeling. The purpose of this article is to realize the design of an immersive 5G virtual reality visual display system through big-data digital city technology. This paper uses big-data digital city technology to design and implement an immersive virtual reality visualization system from the three-dimensional display mode of vision, hearing, and touch, creating a real and interactive three-dimensional visualization environment for users to have a more intuitive visual experience. The experimental results of this paper show that the smoothness of the virtual reality visualization system test can reach 60FPS, the excellent rate reaches nearly 33%, and the model scene-realistic feedback excellent rate is about 62.5%.

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.

A System for Three-Dimensional Visualization of Human Jaw Motion in Speech

1997 ◽  
Vol 40 (5) ◽  
pp. 1118-1121 ◽  
Author(s):  
Thierry Guiard-Marigny ◽  
David J. Ostry
Keyword(s):  
Degrees Of Freedom ◽  
Three Dimensional ◽  
Visual Display ◽  
Visual Speech ◽  
Skeletal Structure ◽  
Visualization System ◽  
Motion Data ◽  
Visual Speech Recognition ◽  
Visualization Software ◽  
Audio Track

With the development of precise three-dimensional motion measurement systems and powerful computers for three-dimensional graphical visualization, it is possible to record and fully reconstruct human jaw motion. In this paper, we describe a visualization system for displaying three-dimensional jaw movements in speech. The system is designed to take as input jaw motion data obtained from one or multi-dimensional recording systems. In the present application, kinematic records of jaw motion were recorded using an optoelectronic measurement system (Optotrak). The corresponding speech signal was recorded using an analog input channel. The three orientation angles and three positions that describe the motion of the jaw as a rigid skeletal structure were derived from the empirical measurements. These six kinematic variables, which in mechanical terms account fully for jaw motion kinematics, act as inputs that drive a real-time three-dimensional animation of a skeletal jaw and upper skull. The visualization software enables the user to view jaw motion from any orientation and to change the viewpoint during the course of an utterance. Selected portions of an utterance may be replayed and the speed of the visual display may be varied. The user may also display, along with the audio track, individual kinematic degrees of freedom or several degrees of freedom in combination. The system is presently being used as an educational tool and for research into audio-visual speech recognition. Interested researchers may obtain the software and source code free of charge from the authors.

scholarly journals A novel apparatus for testing binocular function using the ‘CyberDome’ three-dimensional hemispherical visual display system

Eye ◽  
2008 ◽  
Vol 23 (11) ◽  
pp. 2094-2098 ◽  
Author(s):  
T Handa ◽  
H Ishikawa ◽  
K Shimizu ◽  
R Kawamura ◽  
H Nakayama ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Visual Display ◽  
Display System ◽  
Binocular Function

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.

A Research on Digital City Three-Dimensional Visualization System Based on Skyline

2014 ◽  
Vol 580-583 ◽  
pp. 2745-2748 ◽  
Author(s):  
Hong Bao Dai ◽  
Xiang Jun Yue ◽  
Ji Ying Xu
Keyword(s):  
3D Visualization ◽  
System Development ◽  
Three Dimensional ◽  
Basic Operation ◽  
Digital City ◽  
Landscape Model ◽  
Human Beings ◽  
Visualization System ◽  
Aerial Photos ◽  
Terrain Model

As an important living place for human beings, city is regarded as a main place for the birth, spread and development of human civilization. This paper, based on the principle of system development and combining with the need of building “Digital City”, makes an overall design of the “Digital City” 3D visualization system. Firstly, a 3D ground objects model, i.e. .x files, is made through inputting the ground objects of the experimental area into 3DSMAX, then, the .x files are converted to .xpc files in order to achieve a better displaying effect in producing a 3D landscape. Secondly, the author makes corresponding pre-processing to the aerial photos, satellite images, topographic data, digital elevation models and a variety of vector geographic data, and then superimposes and loads these data into Terra Builder module of Skyline software, which generates 3D topography landscape, that is, .MPT files and forms the terrain database required in Terra Explorer Pro software. Next, a 3D landscape is preliminarily established by inputting the 3D terrain model and the 3D ground objects model, i.e. .MPT files and .xpl files, in Terra Explorer Pro, and by editing a real and accurate 3D geographic model and a real Digital City 3D landscape model, that is, FLY files, are respectively formed. Finally, on the basis of the 3D landscape model, the system is developed by using Visual Basic + TerraDeveloper and the basic operation of 3D, spatial analysis, visible analysis and other basic functions are preliminarily achieved

Construction of Virtual Petrochemical Enterprises Based on Virtual Reality Technology

2013 ◽  
Vol 739 ◽  
pp. 748-753
Author(s):  
Wen Yan Chai ◽  
Gang Fu ◽  
Ti Bai Xiao ◽  
Qiao Yun Sun
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Visual Display ◽  
Production Equipment ◽  
Human Interaction ◽  
Virtual Reality Technology ◽  
Petrochemical Enterprise ◽  
Operation Platform ◽  
High Degree ◽  
Site Training

As petrochemical production equipment with a high degree of risk, on-site training of operating staff and management has brought a great deal of difficulty. Therefore, this paper introduces our research and development work based on virtual reality technology to construct a virtual environment of petrochemical enterprises for on-site training of operating staff and management. To establish the virtual petrochemical enterprises, we adopted 3DMAX as a modeling tool, the VRP (Virtual Reality Platform) as a virtual reality platform as an operation platform. First of all, we create the various sub-scene of the area of petrochemical plants and do model integration and processing to result in the virtual scene with the virtual reality software. Then, we set interactive interface, allowing users to interact with the platform, which makes operations easier. We built-in virtual cameras and pre-recorded screen video to help play the presentation of the video content automatically, so that without human interaction will require. Finally, the role of script will blend with the real three-dimensional scene, the 2D panel and the daemon in order to obtain the true visual display. Therefore, the developed virtual petrochemical enterprise platform has a good show with its real intuitive.

scholarly journals Virtual reality in urban water management: communicating urban flooding with particle-based CFD simulations

2017 ◽  
Vol 77 (2) ◽  
pp. 518-524 ◽  
Author(s):  
Daniel Winkler ◽  
Jonatan Zischg ◽  
Wolfgang Rauch
Keyword(s):  
Virtual Reality ◽  
Three Dimensional ◽  
Visual Display ◽  
Small Scale ◽  
Urban Flood ◽  
Urban Scenes ◽  
Particle In Cell ◽  
The Public ◽  
Flooding Event ◽  
Cfd Method

Abstract For communicating urban flood risk to authorities and the public, a realistic three-dimensional visual display is frequently more suitable than detailed flood maps. Virtual reality could also serve to plan short-term flooding interventions. We introduce here an alternative approach for simulating three-dimensional flooding dynamics in large- and small-scale urban scenes by reaching out to computer graphics. This approach, denoted ‘particle in cell’, is a particle-based CFD method that is used to predict physically plausible results instead of accurate flow dynamics. We exemplify the approach for the real flooding event in July 2016 in Innsbruck.

scholarly journals Ink Art Three-Dimensional Big Data Three-Dimensional Display Index Prediction Model

Complexity ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Xiaonan Cao
Keyword(s):  
Virtual Reality ◽  
Big Data ◽  
Prediction Model ◽  
Large Scale ◽  
High Efficiency ◽  
Three Dimensional ◽  
Texture Mapping ◽  
Data Environment ◽  
Three Dimensional Display ◽  
Fast Rendering

This paper starts with the study of realistic three-dimensional models, from the two aspects of ink art style simulation model and three-dimensional display technology, explores the three-dimensional display model of three-dimensional model ink style, and conducts experiments through the software development platform and auxiliary software. The feasibility of the model is verified. Aiming at the problem of real-time rendering of large-scale 3D scenes in the model, efficient visibility rejection method and a multiresolution fast rendering method were designed to realize the rapid construction and rendering of ink art 3D virtual reality scenes in a big data environment. A two-dimensional cellular automaton is used to simulate a brushstroke model with ink and wash style, and outlines are drawn along the path of the brushstroke to obtain an effect close to the artistic style of ink and wash painting. Set the surface of the model with ink style brushstroke texture patterns, refer to the depth map, normal map, and curvature map information of the model, and simulate the drawing effect of the method by procedural texture mapping. Example verification shows that the rapid visualization analysis model of ink art big data designed in this paper is in line with the prediction requirements of ink art big data three-dimensional display indicators. The fast visibility removal method is used to deal with large-scale three-dimensional ink art in a big data environment. High efficiency is achieved in virtual reality scenes, and the multiresolution fast rendering method better maintains the appearance of the prediction model without major deformation.

scholarly journals Application of Virtual Reality and Plant Modeling for Participation in Urban Planning and Design

2009 ◽  
Vol 8 (2) ◽  
pp. 91-99
Author(s):  
Enmi Lim ◽  
Kiyoshi Umeki ◽  
Tsuyoshi Honjo
Keyword(s):  
Virtual Reality ◽  
Landscape Planning ◽  
Three Dimensional ◽  
Public Understanding ◽  
Graphic User Interface ◽  
Advanced Technique ◽  
Visualization System ◽  
The Public ◽  
Plant Modeling ◽  
Urban Planning And Design

In landscape planning, visualization of landscape is a powerful tool for public understanding and for selection of alternative plans. In recent years, three dimensional (3D) computer graphics (CG) were used as visualization tools of environment because it has the ability to accurately simulate the changes caused by a proposed plan. In particular, virtual reality (VR), which enables to walk through in a modeled park or in a visualized forest, was considered as the advanced technique of landscape visualization. In this study, we developed a landscape visualization system with graphic user interface, which we named VR-Terrain (GUI version), to generate the virtual reality image easily by using VRML (Virtual Reality Modeling Language) and plant modeling techniques. In order to test the feasibility of the landscape visualization system, we applied the system to Ichinoe Urban Design Plan. Ichinoe is located at Edogawa Ward, Tokyo. There is a Sakaikawa Shinsui Park with water space surrounded by large amount of green. In the case study, we simulated the landscape of Sakaikawa Shinsui Park with about 200 plants and 300 buildings. We used the images simulated by VR-Terrain to explain the concept (such as building height limit) to the residents in the public meetings. It took about 30 hours to make the 3D model of the town. After ten minutes of training, anybody can walk through in the simulated town freely. The results showed that the VR image by the system helped the public understanding of the concept of the urban plan.

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