ABSTRACT
Aerial photogrammetry retrieves geometric information about objects and processes from airborne analogue or digital image data. Such data stem from airborne sensors such as analogue frame (i.e. metric) cameras, analogue amateur (i.e. non-metric) cameras, digital frame cameras, digital linear array sensors (pushbroom principle), digital scanners, and digital amateur cameras. Typically, these sensors are mounted on platforms such as (surveying) aeroplanes, helicopters, and unmanned airborne vehicles (e.g. model helicopters, airplanes, or balloons).
