A merging approach for urban boundary correction acquired by remote sensing images

P. L. Zhang, Wen Zhong Shi, X. Y. Wu

Research output: Journal article publicationConference articleAcademic researchpeer-review

Abstract

Since reform and opening up to outside world, ever-growing economy and development of urbanization of China have caused expansion of the urban land scale. It's necessary to grasp the information about urban spatial form change, expansion situation and expanding regularity, in order to provide the scientific basis for urban management and planning. The traditional methods, like land supply cumulative method and remote sensing, to get the urban area, existed some defects. Their results always doesn't accord with the reality, and can't reflects the actual size of the urban area. Therefore, we propose a new method, making the best use of remote sensing, the population data, road data and other social economic statistic data. Because urban boundary not only expresses a geographical concept, also a social economic systems.It's inaccurate to describe urban area with only geographic areas. We firstly use remote sensing images, demographic data, road data and other data to produce urban boundary respectively. Then we choose the weight value for each boundary, and in terms of a certain model the ultimate boundary can be obtained by a series of calculations of previous boundaries. To verify the validity of this method, we design a set of experiments and obtained the preliminary results. The results have shown that this method can extract the urban area well and conforms with both the broad and narrow sense. Compared with the traditional methods, it's more real-time, objective and ornamental.
Original languageEnglish
Pages (from-to)1011-1015
Number of pages5
JournalInternational Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences - ISPRS Archives
Volume40
Issue number8
DOIs
Publication statusPublished - 1 Jan 2014
EventISPRS Technical Commission VIII Mid-Term Symposium 2014 - Hyderabad, India
Duration: 9 Dec 201412 Dec 2014

Keywords

  • Boundary integration
  • Population distribution
  • Remote sensing detection
  • Urban boundary extraction
  • Urban expansion

ASJC Scopus subject areas

  • Information Systems
  • Geography, Planning and Development

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