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3D object scanning allows enhancing the design process, speeds up and reduces data collection errors, saves time and money, and thus makes it an attractive alternative to traditional data collection techniques. 3D scanning is also used for mobile mapping, surveying, scanning of buildings and building interiors, [3] and in archaeology.
Making a 3D-model of a Viking belt buckle using a hand held VIUscan 3D laser scanner. 3D scanning is the process of analyzing a real-world object or environment to collect three dimensional data of its shape and possibly its appearance (e.g. color).
The laser scanner is the main component of LiDAR. Lasers with a wavelength of 550-600 nm are used on a ground-based system (handheld laser scanning and terrestrial laser scanning), whereas airborne systems use lasers with 1000-1600 nm wavelength. [19] Laser calculates the reachable range by the following formula: [19]
PointStudio (formerly I-Site Studio) is a laser scanning technology used for surveying large geographical areas and geotechnical analysis over highwalls. In February 2009, Leica Geosystems’ Spatial Solutions Division selected Maptek to supply laser scanners and software to be sold under the Leica Geosystems brand. [6]
3-D imaging can be achieved using both scanning and non-scanning systems. "3-D gated viewing laser radar" is a non-scanning laser ranging system that applies a pulsed laser and a fast gated camera. Research has begun for virtual beam steering using Digital Light Processing (DLP) technology.
3D data acquisition and object reconstruction – Scanning of an object or environment to collect data on its shape; 3D reconstruction from multiple images – Creation of a 3D model from a set of images; Aerial survey – Method of collecting geophysical data from high altitude aircraft; American Society for Photogrammetry and Remote Sensing
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