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ANDORRE (for Atelier Numérique D’ORthoREctification) in French, is a digital orthorectification shop designed to support automatic production of:
- Orthoimages,
- Colour images, level 1A and 2A at 2.5 m and 5 m resolution,
- Digital Elevation Models (DEMs).
Orthoimages are produced using Reference3D tiles to orthorectify SPOT level 1A scenes automatically.
Reference3D data are stored as one-degree-square tiles containing three layers of information:
- ,HRS orthoimages used by ANDORRE to extract ground control points (GCPs),
- an HRS DEM, used after that to correct distortions due to relief,
- Quality and traceability data pointing to source imagery and DEMs.
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ANDORRE products |
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The images
The data processed by ANDORRE are level 1A SPOT Scenes , from SPOT 1 to 5 satellites, in .
The generated images (X) are:
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2.5 m |
5 m |
10 m |
20 m |
ANDORRE |
| B&W |
C |
B&W |
C |
B&W |
C |
C |
| SPOT Scene |
1A |
- |
X |
- |
X |
- |
- |
- |
Merging |
| 2A |
- |
X |
- |
X |
- |
- |
- |
| SPOTView |
3 |
X |
X |
X |
X |
X |
X |
X |
Orthorectification |
DEMs
ANDORRE extracts DEMS from Reference3D tiles covering the area of interest.
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