Dear Stefan, Can you provide some example photos in a Dropbox (e.g.) folder?
Best regards, Florian On Sat, Aug 15, 2015 at 7:53 PM, Markus Neteler <[email protected]> wrote: > On Tue, Aug 11, 2015 at 11:37 PM, Blumentrath, Stefan > <[email protected]> wrote: > > Dear all, > > > > Although there is a lot of relevant information regarding the > > orthorectification of tilted digital camera images in GRASS GIS online > > (here: > ... > > Does up-slope direction of the photo or sky in the photo conflict with > the > > orthorectification algorithm? > > I have no idea... in general the algorithm is very robust but was > really written for aerial photos. > > > > > When it comes to the GCPs I am in principle quite confident that they are > > placed OK. Or do you think that GCPs measured by a hand held GPS are too > > imprecise? > > They should be fine. > > > However, depending on initial camera settings RMS something like 268, > which > > indicates that something is wrong here. If I do not use i.photo.init, the > > image is placed much better (RMS around 10-20), but still pretty poor… > > About 10 years have passed that I tried the last time, memory is fading... > > Did you figure it out? > > ... > > Btw: Some of the submodules of i.ortho.photo are not linked to the /bin > > folder in GRASS 6.4.5svn, so I have to start them like this: > > /usr/local/grass-6.4.5svn/etc/i.photo.init > > To my knowledge they are intentionally hidden in order to be run from > the i.ortho.photo main menu (in GRASS GIS 6). > > Markus > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user
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