Accession Number:

AD0726386

Title:

Automatic Contour Digitizer (ACD).

Descriptive Note:

Final rept. Aug 68-Jul 69,

Corporate Author:

ARMY ENGINEER TOPOGRAPHIC LABS FORT BELVOIR VA

Personal Author(s):

Report Date:

1971-04-01

Pagination or Media Count:

100.0

Abstract:

The report covers the engineer design tests conducted to determine the suitability of the Automatic Contour Digitizer ACD system for digitizing map controur line data. The ACD was designed to automate the conversion of graphic contour elevation information to digital form and to store the data on half-inch-wide magnetic computer tape at 556 bits per inch in either contour string or profile format. Inputs to the system are existing color separations on 0.007- inch-thick Cronapaque or film base. Up to 24-by 30-inch sheet sizes can be processed. Author

Subject Categories:

  • Cartography and Aerial Photography
  • Computer Hardware
  • Recording and Playback Devices

Distribution Statement:

APPROVED FOR PUBLIC RELEASE