Bird's-eye Maps
One of the unique and distinguished features in Windows Live Maps is the bird's-eye maps (currently available in all major cities as well as their suburbs), where users can see any place (from four angles) as if they are flying on a plane (better experience than satellite images especially when exploring a city). These Pictometry images are very high-quality and you can see signs on tops of buildings, advertisements and other things very clearly. Christmas decorations could be seen in a December 2003 bird's-eye photo. Also, signs on or near buildings can sometimes be read depending on resolution and size (i.e. McDonald's sign, Mobil Gas sign, even store logos such as Wal-Mart signs).
Pictometry International is a Rochester, New York-based company that provides detailed aerial photography. Its images are taken at a 40 degree angle using a patented process. 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. Its images can be overlayed with shapefiles and GIS information can be exported from the images as well.
The oblique photographs shows buildings, infrastructure, land from all sides. Pictometry also shoots directly overhead. In general, this results in much more 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.
The company's most numerous customers are state and local governments, which use images of cities, counties and entire states for such things as planning and development, emergency response (police, fire and 911) and property assessment. It also has applications in insurance, real estate, AVM, civil engineering, and utilities.
Imagery may be licensed by Pictometry directly.