Department of Land Surveying and Geo-Informatics

Doctor of Philosophy / Master of Philosophy

Sept 2021 Entry

Introduction


Established in 1984, the Department of Land Surveying and Geo-Informatics (LSGI) is the only academic unit amongst the local tertiary institutions offering a range of opportunities for education, training and research in the fields of Land Surveying and Geo-Informatics (or Geomatics). The Department has close links with both international and local academic institutions and the professions. By maintaining links with the local professional community through our community service and consultancy activities, our courses and research are oriented towards the needs of Hong Kong.

 

The Department has identified Urban Informatics and Smart City as its strategic area, with three corresponding focused research directions: a) spatial big data modelling and analytics; b) smart positioning and smart mobility; and c) urban sensing and measurement. As a regional centre of excellence in geomatics research, LSGI is comparable with international reputed academic units in the discipline, as evidenced by both the quantity and quality of the research produced and research grants received.

Research Areas


Geomatics

Digital Cartography and geo-visualisation (數字化制圖與地學可視化)

Automated map generalisation; cartographic communication, dynamic maps; geo-visualisation; map evaluation, map information theory, multi-media presentation; multi-scale cartographic databases; and symbol theory.

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Geodesy and Geodynamics (大地測量及地球動力學)

Physical Geodesy, Satellite Geodesy, Geophysics, Geodynamics, Climate Change, Gravimetric. El Nino; InSAR (Interferometric Synthetic Aperture Radar) for monitoring earth surface deformations; precise determination of the geoid; applications of space geodetic techniques to study crustal deformations, atmospheric and environmental changes, sea-level changes and the related natural hazards.

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Geographic Information Systems (GIS) (地理信息系統)

Applications of GIS in transportation, environment and facility management; spatial data structures, terrain modelling and computational geometry; data exchange and integration; dynamic marine GIS; multi-dimensional data models; scale theory; spatial databases; spatial data quality; spatio-temporal modelling; spatial decision support systems; and internet GIS.

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Photogrammetry and Remote Sensing (攝影測量及遙感)

Information extraction from remote sensing images, image quality improvement, image information measurement, subpixel mapping, algorithms development.

Applications of aerial and terrestrial photogrammetry and laser scanning; environmental applications of remote sensing; remote sensing of the urban thermal environment; remote sensing of air quality; two- and three-dimensional information extraction from high-resolution digital images; ground penetrating radar.

Point cloud analysis and computer vision, 3D modality remote sensing for geospatial intelligence.

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Surveying, Navigation and Positioning (測量、導航和定位)

GNSS data quality and navigation reliability, GNSS reflectometry, innovative GPS/GNSS positioning techniques, atmospheric effects, Multiple sensor integration and indoor positioning systems.  Automation and enhancement of the cadastral systems of Hong Kong.

GNSS applications in navigation (such as aircraft navigation), oceanic environment (e.g. water vapour, temperature, colour), hydrographic surveying and mapping, Urban deformation monitoring, landslide and structural health monitoring, intelligent transport information systems and fleet management, and location-based computing and services.

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Urban Informatics and Smart City

Urban‐scape and Environment (城市景觀及環境)

Urban policy and planning, urban morphologies, land value uplift and capture, urban heat island, urban air quality monitoring, urban underground structure modelling, 3D/4D spatial analysis, smart city infrastructure, urban hydrology system, urban ecosystem.

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Urban Data Analytics and Visualisation (城市大數據分析和可視化)

Urban Big Data, Urban Computing, Urban Data Mining, Urban Spatiotemporal Data Fusion, Computational Social Science, Visualisation Techniques.

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Urban Sensing and Ubiquitous Technologies (城市感知技術)

Positioning in high-rising environment, indoor navigation technology, ground penetration radar technology, Internet of Things, mobile positioning technology, Ubiquitous Technologies.  InSAR for urban hazard mitigation, UAV-based sensing technology.

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Urban Systems and Dynamics (城市系統和動力學)

Accessibility and travel behaviour, Complex Network, Transportation Geography, urban as a dynamic system, Human Mobility Mining and Modelling, Environmental informatics, Entropy-based urban informatics.

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Research Facilities


Laboratory for Smart City and Spatial Data Analytics

 

The Laboratory aims to bring academics, researchers, professionals and students together to generate innovative ideas, advanced technologies and practical solutions for smart cities. It provides one-stop facilities for research and development, including a spatial big data analytics server, spatial 3D data server, video-conferencing, TV wall, virtual reality (VR) and augmented reality (AR) visualisation systems.

 

Survey Store and Instrumentation Laboratory

 

The lab loans equipment and maintains and produces special accessories to support teaching and research activities in the Department.

 

Digital Cartography Laboratory

 

This lab is equipped with 40 sets of computers and digitising tablets. Installed with various GIS, CAD and database software, the laboratory is used mostly for teaching and students’ practical work in GIS, cartography and digital mapping.

 

Underground Utility Survey Laboratory

 

This lab provides an indoor and controllable environment in which the orientations, depths, sizes, material types and coordinates of various utility networks are carefully designed and recorded. All of these attributes are geo-referenced and integrated into a geographic information system. Surveys are conducted by a range of utility survey and near-surface geophysical equipment.

 

Geomatics Computing Laboratory

 

This lab provides a general computing facility for all teaching staff and students in the Department to achieve a number of teaching and learning objectives.

 

Laboratory for Geographic Information Systems

 

This lab supports teaching and research on geographic information science and systems; spatial data capture, process, query and analysis; and geo-visualisation.

 

Photogrammetry and Robotic Vision Laboratory

 

This lab houses a 30-seat computing space and specialist equipment space. The computing space is equipped with 15 PCs with access to ERDAS Imagine, ContextCapture, Agisoft PhotoScan, PhotoModeler, and Leica Cyclone v6.0 software. The specialist equipment space houses an Intergraph ImageStation DPW, an Intergraph PhotoScan TD, a dual screen Leica LPS DPW, a Peiss P3 analytical stereo plotter, and provides a workspace for laser scanning projects. The lab is also equipped with instruments and sensors for advanced research and development in photogrammetry and robotic vision, and a demonstration platform for planetary mapping and remote sensing research.

 

Remoted Sensing Laboratory

 

This lab aims to implement high-impact and high-quality research through cross disciplinary collaborations among faculties/schools and other UGC institutions, provide new insight into a wider range of research areas, and maximize their impact and benefit to society. Apart from continuing to focus on the environmental applications of the state-of-the-art remote sensing systems, as well as the development of techniques to enhance the usefulness of these systems, the lab also expands its research endeavours to the application of remote sensing technologies in teaching and learning.

 

Cadastre Survey Laboratory

 

This lab holds various district demarcation sheets, survey sheets and land records from the 1960s up to the present. The Cadastre lab has an A2 scanner and a 3D aerial photo-viewing device.

 

Hydrographic Survey Laboratory

 

The hydro lab has evolved into a modern laboratory to meet various university teaching, research and consulting requirements. It has a suite of advanced instruments and software for teaching, research and consulting services.

 

Navigation Laboratory

 

Jointly set up by the Department and Nanjing University of Aeronautics and Astronautics (NUAA), the laboratory supports four main areas of research: integrated navigation systems; GNSS and positioning; and intelligent transportation systems (ITS) and location based services (LBS).

 

Laboratory for Deformation and Geohazards Studies

This lab facilitates research in developing new technologies such as GNSS (Global Navigation Satellite Systems), InSAR (Interferometric Synthetic Aperture Radar) and in-situ sensor based technologies, and in studying geohazards such as landslides, earthquakes, land subsidence and structural health. The laboratory is equipped with advanced hardware and software.

Other Information


No information is available at present.

Supporting Documents


Transcript / Certificate

Compulsory