Dear all,
I am trying to orthorectify Sentinel-1 GRD Radiometric calibrated
C-band SAR image using EU digital elevation model of 30m resolution
using the command in Linux terminal
*otbcli_OrthoRectification -io.in SARimage.tif -io.out
outputimage.tif -elev.dem /DEMdirectory. *
The DEM used was reprojected to Irish Transverse Mercator – epsg:2157.
The DEM.tif file was converted to general raster file compatible with
the OTB DEM handling using the DEMconvert option. Three files with
the extensions .ras, .geom and .omd were saved in the dem directory -
this directory was given as input for orthorectification
*DEM file information:*
Size is 9663, 7541
Coordinate System is:
PROJCS["IRENET95 / Irish Transverse Mercator",
GEOGCS["IRENET95",
DATUM["IRENET95",
SPHEROID["GRS 1980",6378137,298.2572221010002,
AUTHORITY["EPSG","7019"]],
TOWGS84[0,0,0,0,0,0,0],
AUTHORITY["EPSG","6173"]],
PRIMEM["Greenwich",0],
UNIT["degree",0.0174532925199433],
AUTHORITY["EPSG","4173"]],
PROJECTION["Transverse_Mercator"],
PARAMETER["latitude_of_origin",53.5],
PARAMETER["central_meridian",-8],
PARAMETER["scale_factor",0.99982],
PARAMETER["false_easting",600000],
PARAMETER["false_northing",750000],
UNIT["metre",1,
AUTHORITY["EPSG","9001"]],
AUTHORITY["EPSG","2157"]]
Origin = (419504.356750835664570,709074.848424524534494)
Pixel Size = (25.288322889600000,-25.288322889600000)
Metadata:
AREA_OR_POINT=Area
Image Structure Metadata:
INTERLEAVE=BAND
Corner Coordinates:
Upper Left ( 419504.357, 709074.848) ( 10d41'44.00"W, 53d 6' 6.05"N)
Lower Left ( 419504.357, 518375.606) ( 10d35'37.23"W, 51d23'21.80"N)
Upper Right ( 663865.421, 709074.848) ( 7d 2'44.58"W, 53d 7'42.18"N)
Lower Right ( 663865.421, 518375.606) ( 7d 4'54.58"W, 51d24'52.20"N)
Center ( 541684.889, 613725.227) ( 8d51'16.06"W, 52d16'19.64"N)
Band 1 Block=9663x1 Type=Float32, ColorInterp=Gray
NoData Value=0
It seems that the DEM is not being considered as an input here. The
ouput image has the default projection – UTM zone 29. But it is
supposed to consider the projection of the input DEM which is ITM
(2157). Please find the attached orthorectified image obtained using
the DEM files.
The Orthorectification application in OTB version 6.0.0 was also
tried which did not give the desired result.
Can somebody please help me in understanding what is it that I'm
missing/doing wrong?
I really appreciate the help.
Thanks in advance
Preethi
--
--
Check the OTB FAQ at
http://www.orfeo-toolbox.org/FAQ.html
You received this message because you are subscribed to the Google
Groups "otb-users" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/otb-users?hl=en
---
You received this message because you are subscribed to the Google
Groups "otb-users" group.
To unsubscribe from this group and stop receiving emails from it,
send an email to [email protected]
<mailto:[email protected]>.
For more options, visit https://groups.google.com/d/optout.
