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General / Re: Using Leica DMC III images
« on: August 10, 2021, 05:49:28 PM »I woud fix all parameters.....
I'm returning to this processing again and just want to triple check that the focal length, pixel sizes and principal point coordinates are fixed to those from the [synthetic] camera calibration, and all other values are also fixed, presumably at zero?
If so, once erroneous sparse points are removed and Cameras Optimised (i.e. final bundle adjustment) only the exterior orientation (i.e. camera stations/poses) are adjusted? If this is correct, I'm curious to know what kind of Accuracy you used for the camera locations (m) and orientations (degrees) please? Did you import values from a table of ephemeris data for the flight (I have SD for locations, via dGNSS, and orientations, via IMU), or did you set Accuracy values the same for all photos? If the latter is the case, did you use small/tight values (e.g. fractions of a metre and fractions of a degree) or larger/looser values (e.g. a metre or more and a degree or more)?
Many thanks again!
