3D CARS common words and shortened terms are detailed here.
To update, follow glossary sphinx documentation in RST source documentation.
.. glossary::
CARS
means CNES Algorithms to Reconstruct Surface (ou Chaîne Automatique de Restitution Stéréoscopique en français)
core
Means the internal CARS function used as the engine core for steps and pipelines.
disp
The short version of "disparity"
disparity
The column difference between a pixel in the left image and its homologous pixel in the right image.
DEM
`Digital Elevation Model`_. Usually means all elevation models in raster: DSM, DTM,...
DSM
Digital Surface Model. Represents the earth's surface and includes all objects on it.
CARS generates DSMs. See `Digital Elevation Model`_
DTM
Digital Terrain Model. Represents bare ground surface without any objects like plants and buildings
You need another tool to generate DTM from CARS DSM. See `Digital Elevation Model`_
epi
A shortened version for "epipolar". Simplify length of functions in CARS code.
epipolar
Refer to `epipolar geometry`_ used as basis for CARS 3D pipeline.
matching
Stereo matching or disparity estimation is the process of finding the pixels
in the multiscopic views that correspond to the same 3D point in the scene.
OTB
`Orfeo Toolbox <https://www.orfeo-toolbox.org/>`_ is an open-source project for state-of-the-art remote sensing applications.
pipeline
In computing, a pipeline, also known as a data pipeline is a set of data
processing elements connected in series, where the output of one element
is the input of the next one. In CARS, pipeline orchestrates applications/functions
to chain 3D steps to produce DSM.
rectification
`Image rectification`_ is a transformation process used to project images onto a common image plane.
In CARS, the epipipolar geometry rectification is used.
ROI
`Region of Interest`_ means a subpart of the `DSM` raster in CARS.
It can be defined by a file or a bounding box.