Close range photogrammetry measures objects directly from photographs or digital images captured with a camera at close range. Digital cameras, visualization and automated image measuring software, and desktop computing power, have made
close range photogrammetry a useful, practical tool for construction.
 

Multiple, overlapping images taken from different perspectives produce accurate as-built measurements and 3D models. This figure shows positions of three cameras, indicated by grey rectangles photographing a building from multiple positions.