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Design and Realization of Block Level Augmented Reality Three-Dimensional Map
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作者 Dashuai Shang chenguang dai +1 位作者 Ying Yu Yabing Fan 《Journal of Computer and Communications》 2023年第6期113-121,共9页
In response to the construction needs of “Real 3D China”, the system structure, functional framework, application direction and product form of block level augmented reality three-dimensional map is designed. Those ... In response to the construction needs of “Real 3D China”, the system structure, functional framework, application direction and product form of block level augmented reality three-dimensional map is designed. Those provide references and ideas for the later large-scale production of augmented reality three-dimensional map. The augmented reality three-dimensional map is produced based on skyline software. Including the map browsing, measurement and analysis and so on, the basic function of three-dimensional map is realized. The special functional module including housing management, pipeline management and so on is developed combining the need of residential quarters development, that expands the application fields of augmented reality three-dimensional map. Those lay the groundwork for the application of augmented reality three-dimensional map. . 展开更多
关键词 Augmented Reality Three-Dimensional Map Multi-Source Data Fusion Three-Dimensional Analysis Three-Dimensional Scene SKYLINE
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Voxel modeling and association of ubiquitous spatiotemporal information in natural language texts
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作者 Dali Wang Xiaochong Tong +5 位作者 chenguang dai Congzhou Guo Yi Lei Chunping Qiu He Li Yuekun Sun 《International Journal of Digital Earth》 SCIE EI 2023年第1期868-890,共23页
The ubiquitous spatiotemporal information extracted from Internet texts limits its application in spatiotemporal association and analysis due to its unstructured nature and uncertainty.This study uses ST-Voxel modelin... The ubiquitous spatiotemporal information extracted from Internet texts limits its application in spatiotemporal association and analysis due to its unstructured nature and uncertainty.This study uses ST-Voxel modeling to solve the problem of structured modeling and the association of ubiquitous spatiotemporal information in natural language texts.It provides a new solution for associating ubiquitous spatiotemporal information on the Internet and discovering public opinion.The main contributions of this paper include:(1)It proposes a convolved method for ST-Voxel,which solves the voxel modeling problem of unstructured and uncertain spatiotemporal objects and spatiotemporal relation in natural language texts.Experiments show that this method can effectively model 5 types of spatiotemporal objects and 16 types of uncertain spatiotemporal relation founded in texts;(2)It realizes the unknown event discovery based on voxelized spatiotemporal information association.Experiments show that this method can effectively solve the aggregation of ubiquitous spatiotemporal information in multi-natural language texts,which is conducive to discovering spatiotemporal events.The selection of convolution parameters in voxel modeling is also discussed.A parameter selection method for balancing the discovery capability and discovery accuracy of spatiotemporal events is given. 展开更多
关键词 Spatiotemporal voxels ubiquitous spatiotemporal modeling spatiotemporal association discrete grid
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