Title :
Challenge of aster digital elevation model
Author :
Iwasaki, Akira ; Koga, Masaru ; Kanno, Hiroto ; Yokoya, Naoto ; Okuda, Tetsuya ; Saito, Kojiro
Author_Institution :
Res. Center for Adv. Technol. & Sci., Univ. of Tokyo, Tokyo, Japan
Abstract :
Accuracy of digital elevation model (DEM) obtained by the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) that has along-track stereovision is investigated. The pointing offset and stability of the radiometer is one cause of the geometric deviation of the ASTER DEM attached with orthorectified image. The correction methodology to be implemented to the data processing is suggested. A fine-tuning of image matching procedure leads to better reproduction of the topography. The comparison with reference DEM is described.
Keywords :
image matching; radiometers; stereo image processing; ASTER; advanced spaceborne thermal emission and reflection radiometer; along-track stereovision; correction methodology; data processing; digital elevation model; fine tuning; geometric deviation; image matching; orthorectified image; reference DEM; topography; Accuracy; Correlation; Image matching; Jitter; Remote sensing; Satellite broadcasting; Satellites; ASTER; DEM; pointing stability; satellite attitude jitter;
Conference_Titel :
Geoscience and Remote Sensing Symposium (IGARSS), 2010 IEEE International
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-9565-8
Electronic_ISBN :
2153-6996
DOI :
10.1109/IGARSS.2010.5652574
