VERTICAL AERIAL PHOTOGRAPHY
Vertical Aerial Photography is when a photographic image is taken Perpendicularly to the surface of the Earth and is exactly or very close to a 90 degree angle, straight up and down. Vertical Aerial Photography is used in making Aerial maps and Aerial mosaics of the surface of the earth. It is used by engineers, architects, land planners, governments, military and internet companies to creating accurate representation in two dimensions of the surface of the earth. A good example of Vertical Aerial Photography is aerial maps such as Google Earth. These aerial maps are often low resolution because they are taken from satellite very high up. For much higher resolution imagery aerial photography companies make custom vertical aerial photography with drones and aircraft that are much closer to the subject. The closer the camera to the subject generally the higher the detail and resolution. Drones can do vertical photography but are very limited as to the coverage because of their limited power capability. For larger scale vertical aerial photography one uses an aircraft, which shoots individual images in flight lines and later these images are stitched together into one large aerial mosaic. Such mosaics are very high resolution and used for display or analysis of the ground data.
Vertical aerial photography is shot with a special aerial mapping camera situated in the belly of the aircraft and as the aircraft in flying over the area, the images are automatically taken at predefined set intervals making overlaps of the images from both the front, back and sides of the images. Later these images are analysed by computer and are automatically assembled with perfect seamless stitching so as not to detect that the final image was actually made up of hundreds of individual images.
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