A Fusion Modeling and Interaction Method with Spatial Semantic Constraint for Debris Flow VR Scene

LI Weilian; ZHU Jun; ZHANG Yunhao; FU Lin; HU Ya; YIN Lingzhi; DAI Yi

doi:10.13203/j.whugis20180329

Volume 45 Issue 7

Jul. 2020

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Geomatics and Information Science of Wuhan University > 2020 > 45(7): 1073-1081. > DOI: 10.13203/j.whugis20180329

LI Weilian, ZHU Jun, ZHANG Yunhao, FU Lin, HU Ya, YIN Lingzhi, DAI Yi. A Fusion Modeling and Interaction Method with Spatial Semantic Constraint for Debris Flow VR Scene[J]. Geomatics and Information Science of Wuhan University, 2020, 45(7): 1073-1081. DOI: 10.13203/j.whugis20180329

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A Fusion Modeling and Interaction Method with Spatial Semantic Constraint for Debris Flow VR Scene

1.
Faculty of Geosciences and Environmental Engineering, Southwest Jiaotong University, Chengdu 610031, China
2.
School of Civil Engineering and Architecture, Southwest Petroleum University, Chengdu 610500, China

Funds:

The National Key Research and Development Program of China 2016YFC0803105

the National Natural Science Foundation of China 41801297

the National Natural Science Foundation of China 41871289

the Fundamental Research Funds for the Central Universities 2682018CX35

Doctoral Innovation Fund Program of Southwest Jiaotong University

More Information

Author Bio:
LI Weilian, PhD candidate, specializes in virtual geographical environment and disaster scene modeling. E-mail:vgewilliam@163.com
Corresponding author:
HU Ya, PhD, lecturer. E-mail: huya@home.swjtu.edu.cn
Received Date: June 01, 2019
Published Date: July 29, 2020

Graphical Abstract

Abstract

Abstract

The construction of debris flow disaster virtual scenes based on virtual reality(VR) technology provides a new method for interaction and analysis of disasters. However, there are many deficiencies in the visualization of disaster scenes, such as low efficiency of VR scene modeling, single interactive mode, weak query and analysis. Therefore, this paper proposes a fusion modeling and interaction method with spatial semantic constraint for debris flow VR scene, the fusion modeling method is addressed in detail. Multimode interaction scenes are designed by symbol augmented expression and the acquisition of ray focus technologies. A prototype system was implemented and a case study region is selected for experiment analysis. The experimental results show that the proposed method can efficiently construct debris flow VR scene, and meet the user requirements for immersive perception of disaster scenes and disaster information query and analysis.
- debris flow disaster,
- spatial semantic constraint,
- virtual reality,
- dynamic fusion modeling,
- multi-mode interaction

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References (29)

References

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