Elementary research of air photos

Abstract

In the existing textbooks, deviations from the plan caused by central projection in aerial images have rather complicated expressions that discourage the reader. Limiting ourselves to the necessary minimum of such expressions, we have aimed to simplify them as much as possible by applying auxiliary quantities, usually hidden in the expressions, although giving a simple relationship to the quantities to be defined, similar to the way longitudinal parallax has greatly simplified the expression of heights. These auxiliary quantities we shall give in appropriate places.