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High Resolution DSM Generation from ALOS PRISM - Calibration Updates-

High Resolution DSM Generation from ALOS PRISM - Calibration Updates-,10.1109/IGARSS.2008.4778823,Junichi Takaku,Takeo Tadono,Masanobu Shimada

High Resolution DSM Generation from ALOS PRISM - Calibration Updates-   (Citations: 2)
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The algorithm for generating digital surface model (DSM) from PRISM was developed for Earth Observation Research Center in Japan Aerospace Exploration Agency (EORC/JAXA). The geometric model stability and accuracy of PRISM have been calibrated for the DSM generation. The interior parameters of PRISM geometry are CCD alignment models and calibrated by the self-calibrations with dense ground control points (GCPs). The exterior parameters of PRISM geometry consist of the orbit data measured by the onboard GPSR, the satellite attitude data measured by the onboard star tracker and sensor alignment models. Those exterior parameters have been calibrated with GCPs as well. The accuracies of DSM generated from those PRISM geometric models are presented with the results of the comparison with high accuracy and high resolution reference DSM data sets derived from LiDAR and aerial photo at the various terrain features.
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    • ...EORC has already performed accuracy assessments of DSMs in various test sites and confirmed the consistency of their performances [2], [3]...
    • ...The latest version of CCD alignment data was released by June, 2007 [3]...
    • ...Hence, we have tried to model them as a changing trend of sensor alignments [2], [3]...
    • ...There was no basic change in conditions of DSM generation since the past validations [2], [3]...

    Junichi Takakuet al. High Resolution DSM Generation from ALOS PRISM - Status Updates on Ove...

    • ...Previous version of CCD alignments were described in [3] as version 2. Updated parameter will be presented in [4], where CCD alignments will be evaluated using interior orientation and kept the accuracies of sub-pixel level of about 0.6 to 0.7 pixels...

    Takeo Tadonoet al. Updated Results of Calibration and Validation of ALOS Optical Sensors

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