A5101650024- 3D Modeling in Geospatial Applications
- Geological Modeling and Analysis
- Automated Road and Building Extraction
- Geographic Information Systems Studies
- Computational Geometry and Mesh Generation
- Data Management and Algorithms
- Advanced Computational Techniques and Applications
- Robotics and Sensor-Based Localization
- Digital Image Processing Techniques
- Simulation and Modeling Applications
- 3D Surveying and Cultural Heritage
- Video Surveillance and Tracking Methods
- Advanced Measurement and Detection Methods
- Geophysics and Gravity Measurements
- Remote Sensing and LiDAR Applications
- Advanced Electrical Measurement Techniques
- Blind Source Separation Techniques
- Robotic Path Planning Algorithms
- Noise Effects and Management
- Methane Hydrates and Related Phenomena
- Biomimetic flight and propulsion mechanisms
- Advanced Image and Video Retrieval Techniques
- Algorithms and Data Compression
- Machine Fault Diagnosis Techniques
- Modular Robots and Swarm Intelligence
Nanjing Normal University
2013-2025
Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application
2017-2025
Ministry of Education of the People's Republic of China
2015
University of Electronic Science and Technology of China
2006
It has been two decades since virtual geographic environments (VGEs) were initially proposed. While relevant theories and technologies are evolving, data organization models have always the foundation of VGE development, they require further exploration. Based on comprehensive consideration characteristics VGEs, scene is proposed to organize information data. We empirically find that provides a suitable schema support geo-visualization, geo-simulation, geo-collaboration. To systematically...
Existing concepts and frameworks of soundscapes focus on the analysis description sound source but do not explore geographical environment parameters receiver characteristics in scene. soundscape data models ignore information, which limits comprehensive understanding expression soundscapes. They cannot study relationship between elements related to or interaction mechanism environments. From perspective, this extends (geo-soundscape), defines geo-soundscape by cognition scene, analyzes...
ABSTRACT In order to solve the efficiency problem of massive multiresolution vector data organization in DGGS field, we propose a method based on progressive tile structure DGGS. The is combination with structure, which are traditionally used field GIS. That can support scheduling and express objects asymptotically inner pairs tiles, reduces amount transfer improves access construction while guaranteeing scheduling. To validate above design, first resampled global 1:100,000 containing...
ABSTRACT With the development of projects like “smart cities,” assessment surveillance camera layout has emerged as a pivotal step in pursuing optimized monitoring systems. The current body research on evaluation outdoor layouts is deficient its lack attention to methods that address complex 3D scenes and local quality. This paper presents an system prioritizing quality layouts. A quantitative method proposed based spatial grid, leveraging parameters construct detailed coverage model. By...
To support Earth system modeling, we propose a discrete global grid that expresses multi-resolution spatial data. Specifically, unified coding model of nodes, edges, and cells is constructed for triangular system. fulfill the requirements practical applications, design code-based topological query method this an algorithm to transform between codes geographic coordinates. We evaluate Global Finite Volume Community Ocean Model (Global-FVCOM) on in proposed uniform model. The ocean tidal waves...
An indoor navigation network, simplified from complex building structures, is of primary importance for navigation. Methods generating such networks are becoming increasingly important as buildings larger and more complex. However, studies based on the geometry topology spaces do not sufficiently account key decision nodes human wayfinding. This mainly because visible perception pedestrians regarding corridor path structure taken into consideration. In this study, we first propose visibility...
Global ocean surface currents estimated from satellite derived data based on a regular global grid are affected by the grid's shape and placement. Due to different neighbourhood relationships, rectangular lat/lon grids lose accuracy when interpolating fitting elevation data. Hexagonal have shown be advantageous due their isotropic, uniform neighbourhood. Considering these merits, this paper aims estimate current using isotropic hexagonal remote sensing First, gridded altimeter wind with...
Indoor space information extraction is an important aspect of reconstruction for building modeling and a necessary process geographic system from outdoor to indoor. Entity model extracting methods provide advantages in terms accuracy indoor spaces, as compared with network grid methods, the results can be converted into or model. However, existing entity based on search loop do not consider complex environment building, such isolated columns walls cross-floor spaces. In this study,...
Current methods for constructing a 3D geological model of an area require field drilling or measured section data which are often not available over large areas. 2D maps only contain information on the distribution strata but also provide sufficient geometric, topological and semantic modelling. This paper presents method detail from maps. First, series parallel cross sections is automatically created map corresponding relationships objects in recorded. Second, contour algorithm used to...
This paper proposes an algorithm for the conversion of raster data to hexagonal DGGSs in GPU by redevising encoding and decoding mechanisms. The researchers first designed a structure based on rhombic tiles convert DGGS texture format acceptable GPUs, thus avoiding irregularity DGGS. Then, methods tile space-filling curves were designed, respectively, so as reduce amount transmission from CPU GPU. Finally, improved algorithmic efficiency through thread design. To validate above design,...
Presently, most models of crowd evacuations within a building are created manually. This is inefficient. To address this issue, paper focuses on the differences and relationship between industry foundation classes (IFC) macroscopic network model for evacuation (MNME), studies mapping construction methods used to convert entity objects into nodes arcs in MNME. Furthermore, corresponding attribute information MNME established from IFC. Based process, as an input EVACNET4 obtain simulation...
Abstract Identifying and tracking objects in surveillance videos is an important means of mining information during surveillance. Currently, most object‐tracking methods rely only on image features, which cannot accurately express the motion tracked object real geographical scenes are easily influenced by occlusion surrounding having similar features. However, objects, such as pedestrians vehicles, usually move space with fixed patterns motion, a short time constrained time, trajectory...
Computer Aided Design (CAD) systems play an important role in the production of building designs that are used to assist constructions. Thus, CAD drawings contain a large amount data for indoor navigation and other related analysis which often done BIM (Building Information Modeling). Therefore, conversion CAD-based is necessary make useful these applications. However, when mapping model, there semantic ambiguities will have impact on subsequent information converted from CAD. This paper...