Generate a RPC sensor model from a list of Ground Control Points.
This application generates a RPC sensor model from a list of Ground Control Points. At least 20 points are required for estimation wihtout elevation support, and 40 points for estimation with elevation support. Elevation support will be automatically deactivated if an insufficient amount of points is provided. The application can optionnaly output a file containing accuracy statistics for each point, and a vector file containing segments represening points residues. The map projection parameter allows to define a map projection in which the accuracy is evaluated.
This section describes in details the parameters available for this application. Table 4.52, page 515 presents a summary of these parameters and the parameters keys to be used in command-line and programming languages. Application key is GenerateRPCSensorModel.
Parameter key | Parameter type |
Parameter description |
outgeom | Output File name |
Output geom file |
inpoints | Input File name |
Input file containing tie points |
outstat | Output File name |
Output file containing output precision statistics |
outvector | Output File name |
Output vector file with residues |
map | Choices |
Output Cartographic Map Projection |
map utm | Choice |
Universal Trans-Mercator (UTM) |
map lambert2 | Choice |
Lambert II Etendu |
map lambert93 | Choice |
Lambert93 |
map wgs | Choice |
WGS 84 |
map epsg | Choice |
EPSG Code |
map.utm.zone | Int |
Zone number |
map.utm.northhem | Boolean |
Northern Hemisphere |
map.epsg.code | Int |
EPSG Code |
elev | Group |
Elevation management |
elev.dem | Directory |
DEM directory |
elev.geoid | Input File name |
Geoid File |
elev.default | Float |
Default elevation |
inxml | XML input parameters file |
Load otb application from xml file |
outxml | XML output parameters file |
Save otb application to xml file |
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Output geom file Geom file containing the generated RPC sensor model
Input file containing tie points Input file containing tie points. Points are stored in following format: col row lon lat. Line beginning with # are ignored.
Output file containing output precision statistics Output file containing the following info: ref_lon ref_lat elevation predicted_lon predicted_lat x_error_ref(meters) y_error_ref(meters) global_error_ref(meters) x_error(meters) y_error(meters) overall_error(meters)
Output vector file with residues File containing segments representing residues
Output Cartographic Map Projection Parameters of the output map projection to be used. Available choices are:
Elevation management This group of parameters allows to manage elevation values. Supported formats are SRTM, DTED or any geotiff. DownloadSRTMTiles application could be a useful tool to list/download tiles related to a product.
Load otb application from xml file Load otb application from xml file
Save otb application to xml file Save otb application to xml file
To run this example in command-line, use the following:
To run this example from Python, use the following code snippet:
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This application has been written by OTB-Team.
These additional ressources can be useful for further information: