vertical aerial photograph

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• vertical air photograph — A photograph taken from the air with the optical axis of the camera perpendicular to the surface of the earth. Vertical photographs have practically a constant scale and are used to prepare maps and detect camouflaged objects. See aerial… …   Aviation dictionary

• aerial photograph — noun : a photograph taken from an aircraft • aerial photography noun * * * aerial photography. a photograph taken from an aircraft or satellite in flight. Also called aerophoto, air photograph. [1895 1900] * * * aerial photograph, a vertical or… …   Useful english dictionary

• aerial photography — A photographic print or picture of an object, or of a source of radiation, on the earth’s surface, developed from a film previously exposed in an airborne vehicle. In narrower terms, it is the act of taking photographs of objects on the ground… …   Aviation dictionary

• vertical photography — A form of aerial photography in which the axis of the camera is kept as vertical as possible while taking photographs. During a photo run, the photographs are taken continuously and an overlap is provided between the photographs. Similarly,… …   Aviation dictionary

• vertical — adjective Etymology: Middle French or Late Latin; Middle French, from Late Latin verticalis, from Latin vertic , vertex Date: 1559 1. a. situated at the highest point ; directly overhead or in the zenith b. of an aerial photograph taken with the… …   New Collegiate Dictionary

• oblique air photograph — An aerial photograph taken with the camera axis intentionally inclined between the horizontal and the vertical. See aerial photography …   Aviation dictionary

• true vertical photograph — An aerial photograph taken with the optical axis of the camera perpendicular to the ground. In such a photograph, the principal point, the ground nadir, and the photo nadir coincide. Whereas the principal point is always the geometric center of a …   Aviation dictionary

• tilted photograph — An aerial photograph made with the camera axis or optical axis unintentionally tilted from the vertical by a small amount, usually less than 3° …   Aviation dictionary

• oblique photography/oblique aerial photography — A type of aerial photography in which the camera axis is deliberately kept tilted from the vertical by a specified angle. The photographs, thus taken, reveal details masked in some ways in vertical photographs. The main function of this type of… …   Aviation dictionary

• Mercedario — Mercedario, 2004 Elevation 6,720 m (22,047 ft)  …   Wikipedia

• surveying — /seuhr vay ing/, n. 1. the science or scientific method of making surveys of land. 2. the occupation of one who makes land surveys. 3. the act of one who surveys: The surveying required nearly two days. [1425 75; late ME: act of examining… …   Universalium