Hi all
I'm having problems with 2 overhead photos of a substation site.
They seem to calibrate OK, (i.e. all green locators and maybe 1 yellow in a total of 8 - 20), but when I try to define my Word Space, the third axis is nowhere near correct.
The 2 photos are obviously from different angles, possibly from a helicopter. No idea what focal length was or even if the same camera was used although I suspect it would have been, but I think the photos may be scanned.
Anybody any ideas.
I've tried manually calibrating to no avail.
Thanks to anyone taking the trouble to reply.
