Extraction and validation of cartosat-1 DEM |
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Authors: | Nadeem Ahmed Anjum Mahtab Ritesh Agrawal P Jayaprasad S K Pathan Ajai D K Singh A K Singh |
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Institution: | (1) Geomatic Engineering Department, Istanbul Technical University, 34469 , Maslak, Istanbul, Turkey |
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Abstract: | CARTOSAT-1 satellite, launched in May, 2005 is a dedicated along track stereo mission providing high quality data for topographic
and cartographic applications. The present paper describes the evaluation of the Cartosat-1 stereo data, mainly through the
generation and validation of DEM for moderately undulating and hilly areas. Photogrammetric techniques have been used for
generation of DEM and Orthoimage for two cases i.e. 1) using RPCs (Rational Polynomial Coefficients) and 2) using RPCs along
with ground control points. Root Mean Square Error (RMSE) in elevation values for the moderately undulating (Dehradun) and
hilly area (Shimla), are found to be 4.38 and 3.69m respectively. |
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Keywords: | |
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