Details
| Original language | English |
|---|---|
| Pages | 2863-2865 |
| Number of pages | 3 |
| Publication status | Published - 2001 |
| Event | 2001 International Geoscience and Remote Sensing Symposium (Igarrs 2001) - Sydney, NSW, Australia Duration: 9 Jul 2001 → 13 Jul 2001 |
Conference
| Conference | 2001 International Geoscience and Remote Sensing Symposium (Igarrs 2001) |
|---|---|
| Country/Territory | Australia |
| City | Sydney, NSW |
| Period | 9 Jul 2001 → 13 Jul 2001 |
Abstract
In February 2000 the Shuttle Radar Topography Mission (SRTM) was flown on board the space shuttle Endeavour. The aim of the mission was to survey about sixty percent of the complete landmasses of the Earth's surface. During the mission US C-band antenna and a German/Italian X-band antenna were installed on board the shuttle. The main result of the mission will be a three-dimensional digital surface model (DSM) obtained from single-pass interferometry. During the validation process the SRTM elevation data will be analysed by comparing them to reference data of a well-known test site. This paper describes and investigates an algorithm for this task which was developed at the Institute for Photogrammetry and Engineering Surveys (IPI) of the University of Hannover. It is based on a spatial similarity transformation which matches the SRTM data onto reference data of higher accuracy. The algorithm is comparable to the absolute orientation of a photogrammetric block by means of a DTM. Any detected transformation parameters which differ from the identity transformation point to potentially existing systematic errors of the SRTM data, the standard deviation of the remaining height differences represents the accuracy of the SRTM data. The algorithms was successfully tested using simulated and real data, the obtained results are reported in this paper.
ASJC Scopus subject areas
- Computer Science(all)
- Computer Science Applications
- Earth and Planetary Sciences(all)
- General Earth and Planetary Sciences
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2001. 2863-2865 Paper presented at 2001 International Geoscience and Remote Sensing Symposium (Igarrs 2001), Sydney, NSW, Australia.
Research output: Contribution to conference › Paper › Research › peer review
}
TY - CONF
T1 - Quality assessment of digital surface models derived from the Shuttle Radar Topography Mission (SRTM)
AU - Koch, A.
AU - Heipke, C.
PY - 2001
Y1 - 2001
N2 - In February 2000 the Shuttle Radar Topography Mission (SRTM) was flown on board the space shuttle Endeavour. The aim of the mission was to survey about sixty percent of the complete landmasses of the Earth's surface. During the mission US C-band antenna and a German/Italian X-band antenna were installed on board the shuttle. The main result of the mission will be a three-dimensional digital surface model (DSM) obtained from single-pass interferometry. During the validation process the SRTM elevation data will be analysed by comparing them to reference data of a well-known test site. This paper describes and investigates an algorithm for this task which was developed at the Institute for Photogrammetry and Engineering Surveys (IPI) of the University of Hannover. It is based on a spatial similarity transformation which matches the SRTM data onto reference data of higher accuracy. The algorithm is comparable to the absolute orientation of a photogrammetric block by means of a DTM. Any detected transformation parameters which differ from the identity transformation point to potentially existing systematic errors of the SRTM data, the standard deviation of the remaining height differences represents the accuracy of the SRTM data. The algorithms was successfully tested using simulated and real data, the obtained results are reported in this paper.
AB - In February 2000 the Shuttle Radar Topography Mission (SRTM) was flown on board the space shuttle Endeavour. The aim of the mission was to survey about sixty percent of the complete landmasses of the Earth's surface. During the mission US C-band antenna and a German/Italian X-band antenna were installed on board the shuttle. The main result of the mission will be a three-dimensional digital surface model (DSM) obtained from single-pass interferometry. During the validation process the SRTM elevation data will be analysed by comparing them to reference data of a well-known test site. This paper describes and investigates an algorithm for this task which was developed at the Institute for Photogrammetry and Engineering Surveys (IPI) of the University of Hannover. It is based on a spatial similarity transformation which matches the SRTM data onto reference data of higher accuracy. The algorithm is comparable to the absolute orientation of a photogrammetric block by means of a DTM. Any detected transformation parameters which differ from the identity transformation point to potentially existing systematic errors of the SRTM data, the standard deviation of the remaining height differences represents the accuracy of the SRTM data. The algorithms was successfully tested using simulated and real data, the obtained results are reported in this paper.
UR - http://www.scopus.com/inward/record.url?scp=0035575009&partnerID=8YFLogxK
M3 - Paper
AN - SCOPUS:0035575009
SP - 2863
EP - 2865
T2 - 2001 International Geoscience and Remote Sensing Symposium (Igarrs 2001)
Y2 - 9 July 2001 through 13 July 2001
ER -