Yegor wrote:
Can you explain what you mean “control point”?
There are 3 types of control points:
Tie Point is used to tie images together with no coordinates in order to align them more precisely and correctly.
Ground Control uses GPS coordinates.
Ground Test is used for testing ground control points and error measuring.
I also recommend you to search the forum, as this topic has been solved a lot of times. For example: Faster workflow for adding ground control points