Geo-Referenced Imagery

Overview:
Williams offers geo-referenced imagery as a low cost  alternative to orthophotography.  Geo-referenced imagery is simply aerial photography which has be "rubber sheeted" to a given control source.  Geo-referenced imagery can serve as a lower cost basemap.

Control Sources:

• USGS Digital Raster Graphics (DRGs)
• Existing orthophotography
• Digital tax maps
• Existing geo-referenced imagery
• Existing planimetric (vector) data

Experience
Williams has provided geo-referencing services for over five years.

Common applications for geo-referenced imagery

• Base for GIS
  
• Image back for tax mapping
  
• Growth analysis