Pictometry
From The Art and Popular Culture Encyclopedia
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Pictometry International is a Rochester, New York-based company that provides detailed aerial photography. Its images are taken at a 40 degree angle from low-flying airplanes. Its Electronic Field Study software allows a variety of measurements to be taken directly from the image, including height, distance and area as well as elevation and bearing. Contour lines can be dynamically created by the user. Its images can be overlaid with shapefiles and GIS information can be exported from the images as well.
The oblique photographs shows buildings, infrastructure, and land from all sides. Pictometry also shoots looking straight down from the airplane. In general, this approach results in much more visual detail than using satellite photography, because there are multiple perspectives, with overlap resulting in as many as 12 to 30 images of the same location.
