Multi-scale modelling and representation of geospatial data

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Scale is one of the most important but unsolved issues in various scientific disciplines. This chapter tackles the multi-scale issues in modelling and representation of geo-spatial data. First concepts of scale, multi-scale and transformation in scale are clarified. Then discussions are conducted on the multi-scale modelling and representation of digital map data, digital terrain models (DTM) and digital images. For digital maps, the development of low-level operations/algorithms and high-level rules are reviewed and a set of 40 operations are identified. For digital image and DTM data, the techniques for achieving multi-scale representation are described, multi-scale effects are illustrated with cases and the determination of optimum scale is also addressed.
Original languageEnglish
Title of host publicationAdvances in Photogrammetry, Remote Sensing and Spatial Information Sciences
Subtitle of host publication2008 ISPRS Congress Book
Pages265-278
Number of pages14
Publication statusPublished - 1 Dec 2008
EventInternational Society for Photogrammetry and Remote Sensing Congress - Beijing, China
Duration: 3 Jul 200811 Jul 2008

Conference

ConferenceInternational Society for Photogrammetry and Remote Sensing Congress
CountryChina
CityBeijing
Period3/07/0811/07/08

Keywords

  • Multi-scale modelling
  • Representation
  • Resolution
  • Spatial data

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Computer Vision and Pattern Recognition
  • Information Systems

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