we have done an airborne flight taking images (approx. 1500 images) at night to analyze the nightlight in a city. Example Image below.
The images are taken with a commercial NikonD3 camera (nikon raw images .nef) mounted on a stabilized platform, and we have simultaneously acquired differential GPS and inertial data.
Until now I have played around with several settings in the first calibration step, but the images could not be calibrated. (I have loaded the raw files with the initial GPS coordinates of the Nikon camera.)
Are there any options I should try?
We also have accurate dpgs locations and angles in an external file. Would it help to write the locations and angles to the exif files of the images? Or can I include external location and angle information somehow in the process?
Any help, is highly appreciated. Thanks.