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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 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 photograph. See also true vertical photograph. |