so I slowly flow low above the ground with a high frame-rate. When I used all the captured Images, which had few motion between them, Pix4D failed to calibrate most of the Images. Contrary to that when I used every 4th Image of that data set it was able to calibrate most of the Camera positions. Why is that? I would have assumed more Images = more Information + more Overlap = better results! How is the pix4D algorithm working and what is the sweet spot of the motion between Images?