A direct georeferencing (DG) system provides the ability to directly relate the data collected by a remote sensing system to the Earth, by accurately measuring the geographic position and orientation of the sensor without the use of traditional ground-based measurements. Examples of where DG systems are used in the airborne mapping
industry include: scanning laser systems or LIDAR such as the Optech ALTM, Interferrometric Synthetic Aperture Radar systems (InSAR) such as that produced by the Aero-sensing, multispectral and hyperspectral scanners such as the ITRES CASI, the new state-of-the-art digital line scanners systems such as the LH Systems
ADS40, and more increasingly small format digital cameras and traditional film cameras such as the Leica RC30 and TOP RMK.
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GIS Weekly Magazine
Susan Smith
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Look for the next issue of GIS Weekly Magazine on May 28, 2012.
Each GISWeekly Review delivers to its readers news concerning the latest developments in the GIS industry, along with a selection of other articles that we feel you might find interesting. |
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