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Pictometry
Pictometry is the name of a patented aerial image capture process that produces imagery showing the fronts and sides of buildings and locations on the ground. Images are captured by low-flying airplanes, depicting up to 12 oblique perspectives (shot from a 40 degree angle) as well as an orthogonal (overhead) view of every location flown. These perspectives can then be stitched together to create composite aerial maps that seamlessly span many miles of terrain.
Because they are taken from an angle, the pixels associated with Pictometry images are trapezoidal, rather than rectangular.〔(Metric Oblique Imagery )〕 This necessitates special software and algorithms to accurately determine objects’ size and position on the maps.
==Uses==
Pictometry imagery can be overlaid with various shapefiles and GIS information because every pixel is georeferenced to its exact location on the earth.〔(GIS: Pictometry: Oblique Imagery training )〕 This allows pictometry imagery to be integrated into many existing GIS software applications for use in many businesses, while creating a much richer database of the real world. Measurements that can be made directly on pictometry imagery include area, distance, height, elevation, pitch, and bearing, among others.〔(Pictometry - The Aerial Oblique Photography Company )〕
Pictometry imagery is used by federal, state and local governments for emergency response/9-1-1,〔(Marion County, Kansas > Departments > Emergency Communications > What is Pictometry )〕 GIS, planning and development, and assessment.〔(Web-based GIS and Digital Oblique Imagery - Journal of Property Assessment & Administration - by Lema Kebede - )〕〔(Pictometry | PVSC - Property Assessment Nova Scotia )〕 Commercial industries including insurance, construction, utilities,〔(Provider Calls Pictometry® A Revolutionary Technology For The Pipeline Industry | Pipeline & Gas Journal )〕 and real estate utilize such imagery to streamline business activities.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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