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Automatic digital surface model generation from Pléiades stereo images
- Source :
- Revue Française de Photogrammétrie et de Télédétection, Iss 208 (2014)
- Publication Year :
- 2014
- Publisher :
- Société Française de Photogrammétrie et de Télédétection, 2014.
-
Abstract
- We propose a fully automated stereo pipeline for producing digital elevation models from Pléiades satellite images. The agility of the Pléiades satellites allows them to capture multiple views of the same target in a single pass, enabling new applications that exploit these quasi-simultaneous high-resolution images. Concretely the tri-stereo acquisition modality permits to reduce the occlusions and to cross-validate the observed points. This paper gives an overview of our pipeline, named s2p, and presents some digital elevation models and 3D point clouds built from Pléiades tri-stereo datasets. The data was provided by Airbus DS and the CNES through the RTU program. The particularity of the s2p algorithm is that it permits to use conventional stereo correlation tools, by performing a very precise image rectification of each stereo pair. Although the acquisition system does not fit the pinhole camera model, which is necessary to make the rectification possible, the errors due to the pinhole assumption were shown to be negligible for small enough image sizes. Thus, the whole image can be treated by cutting it into small tiles that are processed independently.
- Subjects :
- QA71-90
Epipolar geometry
Point cloud
ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION
Instruments and machines
remote sensing
Computer graphics (images)
Computer vision
Applied optics. Photonics
Image rectification
3D reconstruction
Electrical and Electronic Engineering
Cellular telephone services industry. Wireless telephone industry
digital elevation models
business.industry
stereo
Computer Science Applications
TA1501-1820
Geography
HE9713-9715
Pinhole camera model
Pinhole (optics)
Artificial intelligence
business
pushbroom geometry
Stereo camera
Computer stereo vision
Subjects
Details
- Language :
- English
- ISSN :
- 24263974 and 17689791
- Issue :
- 208
- Database :
- OpenAIRE
- Journal :
- Revue Française de Photogrammétrie et de Télédétection
- Accession number :
- edsair.doi.dedup.....66bd8d64f68f4a630366b3ce0614b1ba