Volume 33 Issue 9
Sep.  2008
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ZHANG Li, ZHANG Jixian. Automatic DEM Generation from High-Resolution Satellite Imagery Based on Multiple-Baseline Image Matching[J]. Geomatics and Information Science of Wuhan University, 2008, 33(9): 943-946.
Citation: ZHANG Li, ZHANG Jixian. Automatic DEM Generation from High-Resolution Satellite Imagery Based on Multiple-Baseline Image Matching[J]. Geomatics and Information Science of Wuhan University, 2008, 33(9): 943-946.
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Automatic DEM Generation from High-Resolution Satellite Imagery Based on Multiple-Baseline Image Matching

  • 1Chinese Academy of Surveying and Mapping,16 Beitaiping Road,Beijing 100039,China

Funds: 国家西部1∶5万地形图空白区测图工程资助项目(F2543)
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  • Received Date: July 14, 2008
  • Revised Date: July 14, 2008
  • Published Date: September 04, 2008
    Graphical Abstract
    • Abstract
  • An advanced matching approach for automatic digital elevation model(DEM) generation from high-resolution satellite images is presented.The DEMs are generated by combination of matching results of feature points,grid points and edges.The new method is applied to SPOT-5 HRS/HRG images over a testfield in Zone of Headstream of Three Rivers,Tibet Plateau,China with variable terrain geomorphologic type.The RMS errors for the whole area are 2-6 m,while for flat/hilly areas the accuracy is about 2-3 m or even better.It is shown that with the proposed automatic DEM generation approach,by using SPOT-5 HRS/HRG imagery,1∶50 000 DEMs can be completed with better accuracy.
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