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The Department of Land Surveying and Geo-Informatics

The Department of Land Surveying and Geo-Informatics (LSGI) is a leading academic organization for geomatics education and research.

The Department's focus is on acquisition, modeling, analysis, and management of spatially referenced data for a wide range of applications. These include map-making, navigation, monitoring of engineering projects and geological hazards, environmental monitoring, boundary determination and geographic information management.

The Department has a suite of well-equipped laboratories supporting study and research in the area of digital cartography, photogrammetry, remote sensing, geo-informatics, geodetic and engineering surveys. Students and researchers will be working with these state of the art facilities and internationally renowned teaching staff. They will have a variety of opportunities in both research and practical work.

Our graduates are able to apply theories in practice as our programmes are application oriented. Our research work is of an applied nature and is relevant to industrial, commercial and community needs. Through our partnerships and consultancy work with business and industry as well as our community service work, the Department maintains close relationships with the professions. Our research and courses are therefore oriented towards the needs of Hong Kong.

The Department awards the following degrees and qualifications:

  • Doctor of Philosophy / Master of Philosophy
  • Master of Science in Geomatics
  • Postgraduate Diploma in Geomatics
  • Postgraduate-level subject-based Study
  • Bachelor of Science (Honours) in Geomatics
  • Higher Diploma in Geomatics

Land Surveying

Land Surveying is the measurement and collection of data related to land features, both natural (mountains, valleys, rivers etc) and man-made (roads, buildings, etc). Based on the location and position of features, as well as their dimensions, and changes over time, land surveying can be categorized into:

Topographical Surveying
all natural (mountains, valleys, rivers etc.) and man-made (roads, building etc.) features
Cadastral Surveying
privately or publicly owned land parcels or properties
Engineering Surveying
those related to construction of roads and buildings
Hydrographical Surveying
water depth and features

There are various data collection techniques

  • Total Station (Electronic Theodolite & Measuring Instrument)
  • Deep Sea Echo Sounder and Laser Scanner
  • Aerial Photogrammetry
  • Satellite Imaging
  • Global Positioning Systems


Geo-informatics or Geomatics (where "Geo" refers to the land and "matics" refers to the mathematics and science) is a special kind of Information Technology (IT) which integrates the acquisition/collection, management, analysis, modeling and presentation of spatially referenced data related to land features. The related applications include those of:

  • Land Surveying
  • Digital Mapping / Automated Cartography
  • Geographic Information Systems
  • Virtual Reality

Modern cutting-edge technologies of metrology, navigation systems (GPS, GLONASS, GALILEO), utility surveying and management, cartography, geographical information systems (GIS), photogrammetry and remote sensing, and internet map design and delivery are being deployed. On the management side, the role of cadastral survey is to delineate precise and legal lot boundaries and hence supporting the land and property market.

The latest developments in Geomatics include three-dimensional modeling and visualisation, science and applications of location based services (such as the development of advanced mobile systems for navigation and service information provision), and internet spatial information delivery and service (such as Google maps).


The Department is a very active research organization and is currently engaged in a number of projects. For more information, please visit: our research activities

Latest Vacancies

There are several vacancies and job opportunities related to land surverying and geo-informatics available.

Hot news & events

LSGI's 30th Anniversary (29 May 2014)

Renowned Scholar in Geodesy Gave Seminars at LSGI (1 Apr 2014)

Outstanding Student Award (1 Apr 2014)

LSGI Research Receives Awards (31 Mar 2014)

LSGI scholar wins the 2014 John I. Davidson President's Award of ASPRS (13 Feb 2014)

HKPolyU-Wuhan University Partner GNSS Research Center Established at LSGI (20 Jan 2014)

LSGI Seminar: Assessment of Environment from Satellite Observation (23 Jan 2014)

Visit of China University of Mining and Technology (14 Jan 2014)

The Third International Workshop on Earth Observation and Remote Sensing Applications (EORSA 2014) (Abstract submission on or before 20 Jan 2014)

Recent LSGI Lunar Mapping Achievements Covered Widely by Media (30 Dec 2013)

PolyU Lunar Mapping Techniques Contributed to the Successful Landing of Chang'E-3 on the Moon (20 Dec 2013)

Nondestructive Testing and Evaluation - Civil Engineering and Surveying (NDT&ECES) Workshop 2014 in BAM, Berlin

International Association of Chinese Professionals in Global Positioning Systems (CPGPS)
6th CPGPS Forum (9-11 Jan 2014)

LSGI Seminar: Mapping and localization techniques for teleoperation of Chang'E-3 lunar rover (6 Dec 2013)

The Seventh Cross-strait Geomatics Conference (21-23 Nov 2013)

19th Congregation of LSGI (13 Nov 2013)

An Unified Approach of Non-Destructive Testing and Evaluation on Building, Civil Engineering and Underground Utility Structures and Material (5 Sep 2013)

Introduction of Underground Utility Surveying - as a Nondestructive Testing and Evaluation Method (29 Aug 2013)

LSGI academic received the 2013 China Satellite Navigation Conference (CSNC) Excellent Paper Award

The 8th World Congress on Engineering Asset Management (WCEAM 2013)

LSGI Students and Staff - core members of the Gold Award winning team in PolyU's Outstanding Service Learning Project Awards 2012

FCE Sustainable Urban Development Forum cum Research Alumni Reunion

LSGI Received PTeC Maximum Staff Participation Award 2012

Summer School for Outstanding Postgraduate and Senior Undergraduate Students

LSGI Community Outreach: Basketball Game with MTRC Land Surveying Team

8th International Symposium on Spatial Data Quality (ISSDQ2013)

Dr. Bo WU Received the Excellence in Research Award 2011/2012

Dr. George Zhizhao Liu Received Early Career Award 2012/13 from Hong Kong Research Grants Council

Outstanding LSGI Alumni 2012 - Result Announcement

Four New Staff Members Join the Department in September 2012

LSGI's Latest Research on Future Hong Kong Urban Temperature Attracts Wide Attention

LSGI Welcomes a Famous New Professor : Mei-Po KWAN

LSGI Programmes Accredited by the Hong Kong Institution of Engineers.

Research Student Scholarships Available Now.Click here for application.

Hong Kong PhD Fellowship Scheme

Research Activities

The LSGI is very active in research activities. It hosts research centres which focus on geomatics, remote sensing and urban hazards. Find out more.

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