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Dem Quality Impact on Pixel Location Accuracy of Terrasar-x Orthorectified Imagery – an Assessment of Current Global Dems and Terrasar-x Stereo Dems
| Content Provider | Semantic Scholar |
|---|---|
| Author | Koppe, Wolfgang Kiefl, Nadine Hennig, Simon D. Janoth, Jürgen |
| Copyright Year | 2010 |
| Abstract | For the pixel location accuracy of orthorectified TerraSARX Satellite Imagery, the orbit measurement accuracy, the incidence angle and the Digital Elevation Model (DEM) used for orthorectification were identified as the main influencing factors. In order to quantify the influence of orbit accuracy and DEM quality, several representative test sites and scenarios were set up. Investigations on geolocation accuracy were performed using different DEMs for orthorectification. Since it is possible to extract surface information from TerraSAR-X data by means of radargrammetric mapping techniques, stereo pairs were acquired to derive elevation models. Results of the study proved a strong variation in pixel location accuracy of orthorectified TerraSAR-X products, depending on orbit precision and DEM quality. Furthermore, TerraSAR-X Stereo models proved to be well suited for orthorectification purposes. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://vigir.missouri.edu/~gdesouza/Research/Conference_CDs/IGARSS_2010/pdfs/3761.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
