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vertical air photograph
vertical air photographAn air photograph taken with the optical axis of the camera perpendicular to the surface of the Earth.vertical air photograph
vertical air photograph[′vərd·ə·kəl ′er ′fōd·ə‚graf] (graphic arts) An air photograph taken with the optical axis of the camera perpendicular to the earth's surface. vertical air photographA 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 photograph. See also true vertical photograph. |