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20 April 2023 Urban building dis-occlusion in 3D graph visualization
Jian Xu, Jiarun Wang
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Proceedings Volume 12602, International Conference on Electronic Information Engineering and Computer Science (EIECS 2022); 126022D (2023) https://doi.org/10.1117/12.2668159
Event: International Conference on Electronic Information Engineering and Computer Science (EIECS 2022), 2022, Changchun, China
Abstract
It is a technical difficulty to eliminate the influence of severe visual occlusion in the 3D visualization of urban buildings on the digital earth. Aiming at increasingly complex virtual scenes, we proposed a graph visualization algorithm named Urban Building Dis-occlusion (UBD). The UBD algorithm consists of three parts: 1. Inspired by the skyline, constructing urban building feature points through bounding box collision detection to draw building lines with bidirectional sampling; 2. Multi-type control point layout to ensure smooth building lines; 3. Visual pyramid lens (VPL）elimination neighboring building occlusion enhances visual attention. Compared with the traditional skyline, the experimental results show that UBD can effectively reduce the visual interference of buildings to the building line, and has good timeliness, which fully meets our needs in practical projects. The algorithm provides a novel building-line style for graph visualization, and a new VPL interaction for 3D obstacle avoidance using viewpoint.
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Jian Xu and Jiarun Wang "Urban building dis-occlusion in 3D graph visualization", Proc. SPIE 12602, International Conference on Electronic Information Engineering and Computer Science (EIECS 2022), 126022D (20 April 2023); https://doi.org/10.1117/12.2668159
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KEYWORDS
Visualization
Interpolation
Geographic information systems
3D vision
Optical spheres
Technology
Detection and tracking algorithms
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