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CARS is a dedicated and open source 3D tool to produce Digital Surface Models from satellite imaging by photogrammetry.
CARS, a satellite multi view stereo framework
Overview • Quick Start • Documentation • Contribution • References
Overview
| From stereo images | CARS produces a Digital Surface Model (DSM) |
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CARS is an open source 3D tool dedicated to produce Digital Surface Models from satellite imaging by photogrammetry. This Multiview Stereo framework is intended for massive DSM production with a robust, performant and modular design.
Be aware that the project is new and is evolving to maturity with CNES usage roadmaps and projects such as:
Quick start
CARS Docker Image
CARS is available on Docker Hub and can be downloaded by:
docker pull cnes/cars
One main pipeline to generate DSM
You only need to launch one command:
docker run -w /data -v "$(pwd)"/data_gizeh:/data cnes/cars /data/configfile.json
with one configuration input file ("configfile.json") located in a "data" folder to be consistent with the previous command lines:
{
"inputs": {
"sensors" : {
"one": {
"image": "img1.tif",
"geomodel": "img1.geom",
"no_data": 0
},
"two": {
"image": "img2.tif",
"geomodel": "img2.geom",
"no_data": 0
},
"three": {
"image": "img3.tif",
"geomodel": "img3.geom",
"no_data": 0
}
},
"pairing": [["one", "two"],["one", "three"]],
"initial_elevation": "srtm_dir"
},
"output": {
"out_dir": "outresults"
}
}
On the way to the Pyramids...
You want to build the pyramids by yourself? Download our open licence Pleiades data sample to give CARS a try! You're at a dead end? This quick start script sets you back on the right path.
Documentation
Go to CARS Main Documentation See CARS generation README to rebuild documentation.
Contribution
To do a bug report or a contribution, see the Contribution Guide. For project evolution, see Changelog
Credits
See Authors file
References
- Youssefi D., Michel, J., Sarrazin, E., Buffe, F., Cournet, M., Delvit, J., L’Helguen, C., Melet, O., Emilien, A., Bosman, J., 2020. Cars: A photogrammetry pipeline using dask graphs to construct a global 3d model. IGARSS - IEEE International Geoscience and Remote Sensing Symposium.
- Michel, J., Sarrazin, E., Youssefi, D., Cournet, M., Buffe, F., Delvit, J., Emilien, A., Bosman, J., Melet, O., L’Helguen, C., 2020. A new satellite imagery stereo pipeline designed for scalability, robustness and performance. ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences.
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