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Articles | Volume XLII-1/W1
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-1/W1, 635–638, 2017
https://doi.org/10.5194/isprs-archives-XLII-1-W1-635-2017
Int. Arch. Photogramm. Remote Sens. Spatial Inf. Sci., XLII-1/W1, 635–638, 2017
https://doi.org/10.5194/isprs-archives-XLII-1-W1-635-2017

  31 May 2017

31 May 2017

FOSS4G DATE ASSESSMENT ON THE ISPRS OPTICAL STEREO SATELLITE DATA: A BENCHMARK FOR DSM GENERATION

M. Di Rita, A. Nascetti, and M. Crespi M. Di Rita et al.
  • Geodesy and Geomatics Division, DICEA, University of Rome “La Sapienza”, Italy

Keywords: Cartosat-1, Worldview-1, DSM, Matching, Accuracy, FOSS4G

Abstract. The ISPRS Working Group 4 Commission I on “Geometric and Radiometric Modelling of Optical Spaceborne Sensors”, provides a benchmark dataset with several stereo data sets from space borne stereo sensors. In this work, the Worldview-1 and Cartosat-1 datasets are used, in order to test the Free and Open Source Software for Geospatial (FOSS4G) Digital Automatic Terrain Extractor (DATE), developed at Geodesy and Geomatics Division, University of Rome “La Sapienza”, able to generate Digital Surface Models starting from optical and SAR satellite images. The accuracy in terms of NMAD ranges from 1 to 3 m for Wordview-1, and from 4 to 6 m for Cartosat-1. The results obtained show a general better 3D reconstruction for Worldview-1 DSMs with respect to Cartosat-1, and a different completeness level for the three analysed tiles, characterized by different slopes and land cover.