(Redirected from Aerial photo)
'Aerial photography' is the taking of
photographs from the air with a
camera mounted, or hand held, on an
aircraft,
helicopter,
balloon,
rocket,
kite,
skydiver or similar
vehicle. It was first practiced by the French photographer and balloonist
Nadar in
1858. The use of aerial photography for military purposes was expanded during
World War I by aviators such as
Fred Zinn.
Aerial photography is used in
cartography (particularly
photogrammetry), land-use planning,
archeology,
movie production,
environmental studies,
espionage, commercial
advertising,
conveyancing, and other fields. In the United States, aerial photographs are analyzed in preparation of many
Phase I Environmental Site Assessments for real property analysis. Aerial photos are often processed by a
GIS system.
Advances in
radio controlled models has made it possible for
radio controlled model aircraft to conduct low-altitude aerial photography. This has benefited
real-estate advertising, where commercial and residential properties are the photographic subject. Full-size, manned aircraft are prohibited from low flyovers of populated locations. Miniature-size model aircraft offer full photographic access to these previously restricted areas. Miniature vehicles do not replace full-size aircraft, as full-size aircraft are capable of longer flight-times, higher altitudes, and greater equipment payloads.
Because anything capable of being viewed from a public space is considered outside the realm of
privacy, aerial photography may legally document features and occurrences on private property.
For amateurs without a pilot license one ways to make aerial photographs is using an
Astrocam or an
Oracle model rocket.
Aerial photography challenges
Aerial photography includes many challenges not present in non-aerial photography. Some of these include:
# Perspective correction – Aerial photographs are often taken at an angle to the object being photographed. This means that the perspective of the photograph will be incorrect with near objects larger than far away objects. Perspective correction distorts the image so that equal sized objects in the real world have the same size in the photograph. See
orthophoto.
# Registration – Aerial photographs usually are mapped to the real world objects (streets, buildings, etc) being photographed. For example, an aerial photograph may be converted into a series of lines based on the roads contained in the photograph.
# Stitching – To create an aerial photograph of a large area, multiple photographs must be taken. Stiching is joining those photographs together so that they form a single large photograph. This process creates "seamless" imagery.
See also
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Aerial archaeology
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Aerial landscape art
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Airborne Real-time Cueing Hyperspectral Enhanced Reconnaissance
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Aviation photography
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Astrocam
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Cloudscape (photography)
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Douglas Douglas-Hamilton, 14th Duke of Hamilton 1932 photo flight over
Mount Everest
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Fairchild K-20 (an early aerial camera)
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Kite aerial photography
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Oracle
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Phase I Environmental Site Assessment
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Pictometry
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Photogrammetry
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Remote sensing
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Satellite imagery
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ViewGL
External links
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AP Landing, Aerial Photography Forum and Portal covering all aspects of Aerial Photography
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Aerial Photography from a helium balloon.
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Introduction to Aerial photography from photo.net
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A Bird's Eye View of the Delaware Valley Historical online exhibit courtesy of the Hagley Museum and Library about the Dallin Aerial Survey Company (1924-1941)
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Remote Control Aerial Photography Association
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Aerial Photography and Remote Sensing
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Modern and historic aerial photography of the UK
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Aerial photography of architecture in DC and NY
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The UK from Aerial Photographs and Satellite Images
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Canadian Natural Resources: Introduction to Air Photo Interpretation
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Professional Aerial Photographers Association, International
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Aerial Archaeology AerialArchaeology.com focuses on near earth aerial photography technologies
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Aerial Photography RCAPA is an international organization of Aerial Photogaphers who use RC Blimps, RC Planes, RC Helicopters and even large poles to get the aerial view they want.
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Foresight Photography has good examples of Aerial Photos on their website.
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How to take aerial photos using a kite
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Collection of Historic Aerial Photos of Columbia, South Carolina at the University of South Carolina Lirbary's Digital Collections Page (1938, 1959, 1960, 1970, and 1981)
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Jason Hawkes aerial stock photography
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filemagazine.com - aerial photography gallery