Topographic mapping by SAR

  • Skriver, Henning (Project Manager)
  • Dall, Jørgen (Project Participant)
  • Madsen, Søren Nørvang (Project Participant)
  • Schou, Jesper (Project Participant)
  • Dierking, Wolfgang (Project Participant)
  • Jacobi, Ole (Project Participant)
  • Dueholm, Keld (Project Participant)
  • Frederiksen, Poul (Project Participant)
  • Jørgensen, Lars T. (Project Participant)
  • Knudsen, Per (Project Participant)

Project Details

Description

Topographic maps containing both thematic information about objects (e.g. forests, agricultural areas, roads, and buildings), and elevation information for the surface are used in numerous applications, for instance for registration and planning purposes in municipalities, counties, government agencies, and civil engineering companies. The availability of high-resolution Earth observation data from spaceborne and airborne sensors both today and in the future has focused the attention on the role for such sensors in speeding up and making more efficient the process of compiling and revising topographic maps. The advantages of the SAR sensors are for instance their all-weather mapping capabilities, and their complementarity compared to optical sensors. The ultimate objective of the research is to be able to perform quickly and efficiently compiling and updating of topographic maps using such data.
The specific objectives are: To evaluate requirements of today for topographic mapping with a view to present and future remote sensing capabilities. To evaluate the potential of the polarimetric and interferometric SAR to detect the necessary object classes to be used for the thematic map content, and to evaluate the complementarity with traditional methods, as well as the accuracy of retrieval methods. To study the potential of SAR for change detection as a means of fast, frequent and cost-efficient updating of existing map information. The project was finalized in 2000, and a number of methods have been developed, e.g. for edge detection, segmentation, and change detection. Futhermore, the classification potential of the polarimetric SAR data has been evaluated. Results have been or will be published at conferences and in papers.
StatusFinished
Effective start/end date01/11/199731/12/2000