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drum scanner
See Also: flatbed scanner, roller-feed scanner, scanner
[data capture] A type of scanner in which a hard-copy image or map is attached to a cylinder that spins while a sensor captures a digital image from the surface of the page.
Paper mapping can be scanned, with a flatbed or drum scanner, to generate raster GIS data themes.
150 DPC are required, or large maps are used, drum scanners are required. The map is mounted on a cylindrical drum, which spins as a detector is moved horizontally across the drum.
 See also: Coordinate, Elevation, Geographic, Attributes, Image
  
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