Title
Construction and Optimization of Three-Dimensional Disaster Scenes within Mobile Virtual Reality.
Abstract
Because mobile virtual reality (VR) is both mobile and immersive, three-dimensional (3D) visualizations of disaster scenes based in mobile VR enable users to perceive and recognize disaster environments faster and better than is possible with other methods. To achieve immersion and prevent users from feeling dizzy, such visualizations require a high scene-rendering frame rate. However, the existing related visualization work cannot provide a sufficient solution for this purpose. This study focuses on the construction and optimization of a 3D disaster scene in order to satisfy the high frame-rate requirements for the rendering of 3D disaster scenes in mobile VR. First, the design of a plugin-free browser/server (B/S) architecture for 3D disaster scene construction and visualization based in mobile VR is presented. Second, certain key technologies for scene optimization are discussed, including diverse modes of scene data representation, representation optimization of mobile scenes, and adaptive scheduling of mobile scenes. By means of these technologies, smartphones with various performance levels can achieve higher scene-rendering frame rates and improved visual quality. Finally, using a flood disaster as an example, a plugin-free prototype system was developed, and experiments were conducted. The experimental results demonstrate that a 3D disaster scene constructed via the methods addressed in this study has a sufficiently high scene-rendering frame rate to satisfy the requirements for rendering a 3D disaster scene in mobile VR.
Year
DOI
Venue
2018
10.3390/ijgi7060215
ISPRS INTERNATIONAL JOURNAL OF GEO-INFORMATION
Keywords
Field
DocType
3D disaster scenes,mobile VR,diverse scene data representation,scene optimization,adaptive scheduling
Architecture,External Data Representation,Virtual reality,Scheduling (computing),Computer science,Visualization,Human–computer interaction,Immersion (virtual reality),Frame rate,Rendering (computer graphics)
Journal
Volume
Issue
Citations 
7
6
2
PageRank 
References 
Authors
0.38
19
10
Name
Order
Citations
PageRank
Ya Hu1427.86
Jun Zhu29212.39
Weilian Li355.52
Yunhao Zhang485.26
Qing Zhu514631.03
Hua Qi6213.67
Huixin Zhang7408.37
Zhenyu Cao850.79
Weijun Yang995.04
Pengcheng Zhang1085.61