noun
photographic surveying; photogrammetry
Technical term used in surveying, mapping, and remote sensing. Often refers to the science of making measurements from photographs.
写真測量は、航空写真から地形図を作成する技術です。
Photogrammetry is a technique for creating topographic maps from aerial photographs.
General term for surveying; 写真測量 specifies the use of photographs.
Compound of 写真 (photograph) and 測量 (surveying). The exact historical derivation is uncertain, but the term is a straightforward technical coinage.