The foot of the perpendicular on the picture plane through the optical centre of the camera lens, is known as
Options
A. isocentre
B. principal point
C. perspective centre
D. plumb line.
Correct Answer
principal point
Advanced Surveying problems
Search Results
1. ? and ? are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being S and f respectively. Parallax displacement of the point due to relief, is