This question can be answered from the following points:
(1) Talent barriers, usually those who know aero-remote sensing technology do not know programming, those who know programming do not know aero-remote sensing technology, and there are not many talents who know both aero-remote sensing technology and programming.
(2) Aerial cameras are being updated very fast, and the image format is getting bigger and bigger, but the corresponding aerial photogrammetric software is slow to be updated, especially some algorithms for image matching are not able to keep up with the technology, so the accuracy of the image mapping of the large image format is not up to the standard requirements.
(3) Due to market requirements, the mapping technology of UAV aerial photography has been artificially exaggerated, and the threshold has been lowered, so that the new aerial remote sensing technology cannot be effectively applied, resulting in a waste of manpower and material resources.