Raster Data

• Raster Data – a regular multi-dimensional array of intensity values (i.e., pixels)

  • Geospatial Imagery – used for ground texture and/or feature extraction
  • Scanned Maps – used for map background displays (not very accurate)
  • Other photos/images – used for generic ground texture, model texture, etc.

• Raster Data Sources

  • NGA’s Raster Product Format (RPF)
    • Controlled Image Base (CIB)
      • High-resolution (5-10m) digital imagery
    • Compressed ARC Digital Raster Graphics (CADRG)
      • Scanned hardcopy maps at a variety of scales
    • USGS Digital Raster Graphics (DRGs)
    • Landsat, Spot, & other commercial geospatial imagery
    • Other miscellaneous satellite, aerial, or ground-based imagery

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