Hi Arthur,
The application RefineSensorModel can be used for an image that
*already* has a sensor model. If your image has no sensor model yet, you
can estimate one using GenerateRPCSensorModel.
Let say you want to refine the sensor model of your second image, using
a reference image and matching points (as you wrote : (x1,y1,lon1,lat1)
corresponds to (x2,y2,lon2,lat2) ).
In this case you don't want to use (lon2,lat2) because they are
inaccurate so you have to enter the following line in the .txt file :
x2 y2 lon1 lat1
You should have one line per matching pair.
Regards,
Guillaume
On 03/30/2015 08:42 AM, Arthur Vincent wrote:
Hello everybody,
I'm trying do to an orthorectification on SAR Sentinels images using
OTB. In order to make it more accurate, I want to use the application
called RefineSensorModel. From what I've understood, this application
uses matching points and creates a geom file which can be used for
orthorectification. I've found some matching points and edited them in
my .txt file but my question is :
What is the format for this points in the .txt file ? In the OTB
documentation I found row col lon lat, but is it enouth ?
For exemple in my reference image the point (x1,y1,lon1,lat1)
corresponds to (x2,y2,lon2,lat2) in the second image. How should I
write this information in the .txt file ?
#.txt file to geom file
y1 x1 lon1 lat1
y2 x2 lon2 lat2
Thank you.
Arthur
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<www.c-s.fr> *Guillaume PASERO*
Ingénieur d'études et développement
*Business Unit E-SPACE & Geo Information*
<https://thor.si.c-s.fr/blogs/cs-blogs-business/>*- Département
APPLICATIONS*
*CS Systèmes d'Information*
Parc de la Grande Plaine - 5, Rue Brindejonc des Moulinais - BP 15872
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+33 561 17 64 21 - [email protected]
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