Photoscan Pro
Installtion
Preference
Remember to turn on the GPU function in Preference -> GPU
Camera parameters
The most important parameter is the focal length in the camera parameter
Camera positioning
For those camera positions are unknown, the practical way of generating good topo model is: 1. Generating the first alignment in moderate or low resolution. 2. Give GCP control by georeference to the reference topomap. 3. Re-align the photos. Photoscan Pro will estimate the camera position based on the GCP information. 4. Output the estimated location to excel and edit. Try to give some constrains on the pitch, yam, and roll angle. Because most of the aerial photos should be vertical photography, so the pitch and roll should be close to 0 degrees; the yaw angle is usually close to 0/360 or 180 degrees given by most of the flight is the north-south route. 5. re-import this edited position and attitude back to the photoscan pro, and re-do the alignment. This should help to provide better constraints to your project.
