Hi! Thanks for the quick reply. In fact I used dem respect to the geoid. So, I added the EGM96 Geoid Model as a geoid file (The Trimble Format GGF file: Ww15mgh.ggf). Unfortunately, the result does not change. Where am I wrong? Thank you
Le jeudi 3 mai 2018 13:01:45 UTC+2, Julien Michel a écrit : > > Hi, > > > > Is your DEM with respect to ellipsoid or geoid ? All computation in OTB > are done with respect to the ellispoid, so if your DEM is with respect to > geoid, you need to add a geoid file. > > > > Regards, > > > > Julien > > > > > > *De :* otb-...@googlegroups.com <javascript:> [mailto: > otb-...@googlegroups.com <javascript:>] *De la part de* felicia monti > *Envoyé :* jeudi 3 mai 2018 12:01 > *À :* otb-users <otb-...@googlegroups.com <javascript:>> > *Objet :* [otb-users] Question about OrthoRectification > > > > > > Hello all, > > I'm a graduating student and for my dissertation I'm trying to orthorectify a > QuickBird satellite image, which I think is an ortho-ready product, so I add > the "?&skipcarto=true" at the end of the input image filename. > > > First, I used the application otbgui_ReadImageInfo and I got: > > > > Image general informations: > > Number of bands : 1 > > Start index : [0,0] > > Size : [21948,17320] > > Origin : [0.5,0.5] > > Spacing : [1,1] > > Estimated ground spacing (in meters): [0.698578,0.701359] > > > > Image acquisition informations: > > Sensor : > > Image identification number: > > Country : Italy > > Town : Cretaio > > > > Image footprint coordinates: > > Upper left corner (latitude, longitude) = [40.7882,13.8442] > > Upper right corner (latitude, longitude) = [40.7899,14.0263] > > Lower left corner (latitude, longitude) = [40.679,13.8461] > > Lower right corner (latitude, longitude) = [40.6807,14.0278] > > > > Image default RGB composition: > > [R, G, B] = [0,1,2] > > > > Ground control points information: > > Number of GCPs = 0 > > GCPs projection = > > > > > > instead the dem I'm using is: > > > > Image general informations: > > Number of bands : 1 > > Start index : [0,0] > > Size : [20001,12001] > > Origin : [13.8509,40.7616] > > Spacing : [5.80956e-006,-5.79988e-006] > > Estimated ground spacing (in meters): [0.489746,0.644903] > > > > Image acquisition informations: > > Sensor : > > Image identification number: > > Image projection : GEOGCS["WGS 84", > > DATUM["WGS_1984", > > SPHEROID["WGS 84",6378137,298.257223563, > > AUTHORITY["EPSG","7030"]], > > AUTHORITY["EPSG","6326"]], > > PRIMEM["Greenwich",0], > > UNIT["degree",0.0174532925199433], > > AUTHORITY["EPSG","4326"]] > > > > Image default RGB composition: > > [R, G, B] = [0,1,2] > > > > Ground control points information: > > Number of GCPs = 0 > > GCPs projection = > > > > at the end of the orthorectification with otbgui_OrthoRectification I get the > image correctly orthorectified, but moved about 40 m to the North-East. What > is the reason for this shift? > > > > Thank you in advance > > Felicia > > -- > -- > 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 otb-...@googlegroups.com > <javascript:> > To unsubscribe from this group, send email to > otb-users+...@googlegroups.com <javascript:> > 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 otb-users+...@googlegroups.com <javascript:>. > For more options, visit https://groups.google.com/d/optout. > -- -- 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 otb-users@googlegroups.com To unsubscribe from this group, send email to otb-users+unsubscr...@googlegroups.com 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 otb-users+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
