Camera and filters Photographic Sensors Flight Plan Dr. M. M. Yagoub Department of Geography Faculty of Humanities and Social Sciences United Arab Emirates.

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Camera and filters Photographic Sensors Flight Plan Dr. M. M. Yagoub Department of Geography Faculty of Humanities and Social Sciences United Arab Emirates University P. O. Box 17771, Al-Ain United Arab Emirates Tel: (O) Tel: (H) Fax: URL :

Overview Introduction Measurement from photo Height from photo Photo scale

Introduction Photography - The art or process of producing images on a sensitised surface by the action of light or other radiant energy Photogrammetry - The science or art of obtaining reliable measurements by means of photography (aero-plane at high altitude) Basic negative-to-positive photographic sequences- Film exposure, density, and characteristic curve (grains of silver Halide) Types of films (black/white, colour, infrared) Close range photogrammetry- metric camera (Architecture, Archaeology, Medicine)

Camera

Components of Aerial Camera

Color Films

Information on photo Introduction The Fiduical marks (+) Focal length (f) Date and time of the day Photo scale

Flight Plan and Photographic coverage Flight plan must calculate the total area to be covered, scale of photography,focal length of the camera to be used, flight height, forward and side over lap, ground distance for each flight line, number of photos, and other parameters Usually 50-60% is recommended as forward overlap (End-lap) between successive photographs in the same flight-line 5-15% is recommended as a side lap between adjacent flight lines to prevent gaps in coverage of adjacent flight lines Edge variations may occurred due to flight line drift (wind movement)

Photographic coverage