Scientists snatch the top prize at the 2023 National Prize for Cartographic Sciences

Scientists snatch the top prize at the 2023 National Prize for Cartographic Sciences

The project of Professor Anthony Yeh from the Department of Urban Planning and Design and Dr Frank Xue from the Department of Real Estate and Construction from the School of Architecture at the University of Hong Kong (HKU) has been awarded first prize for the 2023 Surveying and Mapping Science and Technology Award. The award ceremony was held on November 9 during the First China Geoinformation Surveying and Mapping Conference held in Deqing, Zhejiang Province.

This national award, given by the China Society of Geodesy, Photogrammetry and Cartography (CSGPC), aims to recognize the outstanding contributions to China’s field of geodesy, photogrammetry and cartography in China, major technological innovations and development, major upgrades of scientific and technological achievements, and industrialization of advanced technologies. Technology, huge engineering projects and science dissemination.

The University of Hong Kong team is the only team from Hong Kong to receive the award. The award-winning project, titled “Key Digital Technologies and Applications for Cultural Heritage Preservation in the Guangdong-Hong Kong-Macao Greater Bay Area,” aims to develop and apply digital technologies that extract the shared cultural “genes” of Guangdong Province and Hong Kong. , and Macau. The project team is developing the Lingnan Cultural Gene Database using real 3D scenes, digitization, and automated generation of BIM models of heritage buildings in the Greater Bay Area. This will enable a cloud service platform to co-create, share and display common culture and heritage items of the Guangdong, Hong Kong and Macao Greater Bay Area.

This multidisciplinary team also includes members from Guangzhou Aokai Information Technology Co., Ltd., Guangdong Institute of Antiquity, Guangzhou Institute of Urban Planning and Design Survey Research, and Sun Yat-Sen University.

The University of Hong Kong team developed two innovative technologies for the award-winning project. The first innovation was a four-level theoretical automation framework for Heritage Building Information Modeling (HBIM) reconstruction guided by architectural rules, which also received an Award of Merit from the CRIOCM2020 International Conference.

In addition, the team developed an HBIM automation program in Python to process 3D point clouds of heritage buildings, with features such as section segmentation, morphological clustering for local correction, registration of similar components, and generation of semantic relationships. This software is a core technology for the award-winning project, which also received the Outstanding Paper Award at the CRIOCM2023 international conference.

“The technologies use 3D point cloud data, scanned from inside and outside heritage buildings, using the latest ground-based or mobile LiDAR devices. With the help of innovative advanced HBIM automation software developed by the University of Hong Kong, users can easily select from a variety of common components, Such as the leaves and pillars of wooden doors, to enable automatic generation of HBIM objects and their semantic relationships, making the reconstruction process more efficient and user-friendly,” Professor Yeh explained.

“The techniques can be applied to the automatic reconstruction of BIM models of existing buildings for City Information Modeling (CIM), to enable new intelligent simulations and analyzes for sustainable city development.” Dr. Xue added.

For details about the award, please visit:

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