Personal Information
        Wang Yongjun, male, Ph.D., professor, Ph.D. supervisor, head of the master's degree in Surveying and Mapping Engineering, and leader of the integration innovation team in Jiangsu Province. He is a member of Virtual Geographic Environment Specialized Committee and Lidar Specialized Committee of China National Committee of International Society of Digital Earth, and a member of Engineering Surveying Branch of Chinese Society of Surveying and Mapping. His main research interests are laser point cloud data intelligent processing and 3D modeling, multi-dimensional spatial data integration and fusion. He has presided over and is presiding over 3 projects of the National Natural Science Foundation of China, 1 exploratory project of the National High Technology Research and Development Program (863 Program), and 1 sub-project of the National Key Research and Development Program, etc. He has published more than 40 papers and authorized patents. He has published more than 40 papers, 3 authorized patents and 1 monograph. He won the second prize of Science and Technology Progress Award in Surveying and Mapping and the second prize of Science and Technology Progress Award in Geographic Information.

Educational experience

• 1992.09-1996.07, Wuhan Technical University of Surveying and Mapping, School of Surveying and Mapping, major in Engineering Surveying, undergraduate;
• 1996.09-1999.07, Wuhan University of Surveying and Mapping, School of Surveying and Mapping, Geodesy and Surveying Engineering, Digital Mapping and Thematic Geographic Information System Research, Master's degree (supervisor Professor Pan Zhengfeng);
• 1999.09-2003.07, Wuhan University, State Key Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing, photogrammetry and remote sensing, cartography and geographic information system research direction, doctoral student (supervisor Professor Gong Jianya);

Work Experience

• 2003.11-2004.08, Hong Kong Polytechnic University, Department of Land Surveying and Geographic Information, Senior Visiting Scholar
• 2004.09-present, Nanjing Normal University, School of Geographical Sciences, Key Laboratory of Virtual Geographic Environment, Ministry of Education, Lecturer, Associate Professor, Professor

Research

Research Projects

Main projects hosted

1) National Natural Science Foundation of China: Research on knowledge-driven intelligent classification/segmentation of laser point clouds in urban scenes, 2022-2025.

2) General Project of National Natural Science Foundation of China: Research on Semantic-Assisted Multi-dimensional Spatial Data Intelligent Integration Method, 2018-2021.

3) Sub-topic of National Key R&D Program: Open Multi-granularity Facility Object Dynamic Access and Management Software, 2016-2021.

4) National Natural Science Foundation of China: Research on Parallel Digital Terrain Analysis Method for Massive DEM Database, 2011-2013.

5) National High-Tech Research and Development Plan (863) Exploratory Project: Research on Key Technologies of Customizable Multi-dimensional Spatial Data Seamless Integration Model, 2007-2010.

6) Key Project of Open Fund of Key Laboratory of Land Satellite Remote Sensing Application, Ministry of Natural Resources: Research on Key Technology of Forest, Grass and Wetland Survey by Integrating Multimodal Data, 2024-2025

7) The Open Fund Project of the Key Laboratory of Urban Land Resources Monitoring and Simulation of the Ministry of Natural Resources: Research on the three-dimensional data model of the whole space of the building with consistent semantics and geometry, 2019-2020.

Main projects involved

• 1) National High-Tech Research and Development Plan (863) Subject Project: Parallel Computing and Middleware for Digital Terrain Analysis, Third, 2010-2013.
• 2) National Science and Technology Support Project: Video GIS and Perceptual Control System for Public Emergencies, 2012-2014. seventh.
• 3) Key project of National Natural Science Foundation of China: Research on Distributed Geographical Modeling Environment for Geographical Problem Solving, No. 7, 2008-2011.
• 4) National Natural Science Foundation of China General Project: Spatial Relationship and Semantic Rule Mining of Graphic and Text Association, Third, 2008-2010.
• 5) General Project of the National Natural Science Foundation of China: Research on the Ground Slope Spectrum of the Loess Plateau Based on DEM, No. 3, 2007-2009.
• 6) A major project of the Provincial Department of Education: Research on Key Technologies of Measurable 3D Video Construction Based on Flat Video, Third, 2010-2013.
• 7) Major Project of Provincial Department of Education: Research on Mobile 3D Spatial Data Acquisition and Processing Method, Fifth, 2007-2010.

Journal Articles

• 1）Tengping Jiang, Yongjun Wang*, Zequn Zhang, Shan Liu, Lei Dai, Yongchao Yang, Xin Jin, Wenjun Zeng, Extracting 3-D structural lines of building from ALS point clouds using graph neural network embedded with corner information, IEEE Transactions on Geoscience and Remote Sensing, vol. 61, pp. 1-28, 2023
• 2) Tengping Jiang, Bisheng Yang*, Yongjun Wang*, Lei Dai, Bo Qiu, Shan Liu, Shiwei Li, Qinyu Zhang, Xin Jin, Wenjun Zeng. RailSeg: Learning Local-Global Feature Aggregation with Contextual Information for Railway Point Cloud Semantic Segmentation, IEEE Transactions on Geoscience and Remote Sensing, vol. 61, pp. 1-29, 2023.
• 3）Tengping Jiang, Yongjun Wang*, Shan Liu, Qinyu Zhang, Lin Zhao, Jian Sun, Instance recognition of street trees from urban point clouds using a three-stage neural network, ISPRS Journal of Photogrammetry and Remote Sensing, 2023, 199: 305-334,:.
• 4）Tengping Jiang, Shan Liu, Qinyu Zhang, Xin Xu, Jian Sun*, Yongjun Wang*, Segmentation of individual trees in urban MLS point clouds using a deep learning framework based on cylindrical convolution network, International Journal of Applied Earth Observation and Geoinformation, 2023, 123, 103473.
• 5）Tengping Jiang, Qinyu Zhang, Shan Liu, Chong Liang, Lei Dai, Zequn Zhang, Jian Sun*, Yongjun Wang*, LWSNet: A Point-based Segmentation Network for Leaf-Wood Separation of Individual Trees. Forests, 2023, 14, 1303: 1-19.
• 6）Tengping Jiang, Yongjun Wang*, Shan Liu, Yangzi Cong, Lei Dai, Jian Sun, Local and Global Structure for Urban ALS Point Cloud Semantic Segmentation With Ground-Aware Attention[J], IEEE Transactions on Geoscience and Remote Sensing, vol. 60, pp. 1-15, 2022
• 7）Tengping Jiang, Jian Sun*, Shan Liu, Xu Zhang, Qi Wu, Yongjun Wang*, Hierarchical semantic segmentation of urban scene point clouds via group proposal and graph attention network[J], International Journal of Applied Earth Observation and Geoinformation, 105(2021) 102626.
• 8）Y.J. Wang, Q.Y. Chen, Y.J. Yang, X.Y. Chen, J. Sun*, Semantic-assisted Topology Error Detection Method for CityGML Building Models[J], Journal of Surveying and Mapping, 2021, 50(5):664-674
• 9）Tengping Jiang, Yongjun Wang*, Linqi Zhang, Chong Liang, Jian Sun, A Hierarchical Semantic Segmentation Method for Laser Point Cloud by Fusing CNN and MRF[J], Journal of Surveying and Mapping, 2021, 50(2):215-225. 
• 10）Shuaibing Tao, Chong Liang, Tengping Jiang, Yujiao Yang, Yongjun Wang*, Construction and Classification of Sparse Voxel Pyramid Neighborhoods for Laser Point Clouds[J], Chinese Journal of Iconography and Graphics, 2021, 26(11):2703-2712.
• 11）Yongjun Wang*, Tengping Jiang*, Min Yu, Shuaibing Tao, Jian Sun and Shan Liu, Semantic-Based Building Extraction from LiDAR Point Clouds Using Context and Optimization in Complex Environment[J], Sensors, 2020, 3386: 1-18.
• 12）Yongjun Wang, Tengping Jiang*, Jing Liu, Xiaorui Li and Chong Liang, Hierarchical Instance Recognition of Individual Roadside Trees in Environmentally Complex Urban Areas from UAV Laser Scanning Point Clouds[J], ISPRS International Journal of Geo-Information, 2020, 9(595): 1-26.
   

Research Teams, Enrollment Directions and Graduation Paths
        Our research team currently consists of one professor, one associate professor and two lecturers, recruiting doctoral students in Cartography and GIS, Map Cartography and Geographic Information Engineering, Photogrammetry and Remote Sensing, and postgraduate students in the above disciplines and in the direction of Surveying and Mapping Engineering. Graduates mainly go to large high-tech companies such as Huawei, Geely, Chang'an and Meituan, as well as traditional surveying and mapping enterprises and institutions such as Shanghai Municipal Academy of Surveying and Mapping, Zhejiang Institute of Surveying and Mapping Science and Technology, and Nanjing Research Institute of Surveying and Mapping, Ltd. Students with backgrounds in surveying and mapping engineering, cartography and geographic information systems, computer software and applications, and applied mathematics are welcome to apply.

Contact

• Email: wangyongjun@njnu.edu.cn
• Office telephone: 025-85891850
• Address: Research Institute of Nanjing Normal University, No.1 Wenyuan Road, Nanjing (Room 644, Hou Sheng Building)