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Hi,
To my knowledge, Spot 6/7 is supported. The geometric model is
based on the RPC coefficients from the DIMAP.
You could try to investigate if the bad accuracy comes from DEM
settings :
- run Orthorectification without any DEM
- run Orthorectification using standard SRTM tiles (.hgt files)
Just a note on the opt.gridspacing parameter : it corresponds to the
step of the resampling grid, expressed in the units of the output
projection system (if you are using the default UTM projection : it
means 4 meters).
Regards,
Guillaume
On 06/20/2017 04:40 PM, jerome maxant
wrote:
Hi,
I'm trying to perform a Spot 6 orthorectification with OTB
application.
It is running but the geometric accuracy of the result is not
acceptable.
Are Spot 6/7 data supported by OTB Orthorectification app ? I
guess as it's the same dimap format as Pleiades.
My parameters hereafter :
-io.in the jp2 file in the dimap folder + extended filename
skipcarto=true
-io.out output tif file
-elev.dem directory of the geotiff DEM file (EPSG:4326)
-opt.gridspacing 4
I tryied also to play with rpc option parameter but
unsuccessfully.
It should work better, I get reliable results from a commercial
software (also based only on RPC coefficients and without GCP).
How can I improve the result ?
Best regards
Jérôme
OTB On The Beach
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Guillaume PASERO
Responsable technique
Business Unit ESPACE & GeoInformation -
Département Payload Data & Applications
CS Systèmes d'Information
Parc de la Grande Plaine - 5, Rue Brindejonc des
Moulinais - BP 15872
31506 Toulouse Cedex 05 - FRANCE
+33 561 17 64 21 - [email protected]
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