CHARACTER RECOGNITION DEVICE FOR SOUNDINGS ON NAVIGATIONAL CHARTS

Automatic digitization of numerical sounding data from navigational charts has been obtained by use of a low-speed sampling vidicon camera mounted on an X-Y mechanism and connected to a PDP-8 computer. Output is in the form of the numerical sounding value, together with the position coordinates. A simple and reliable recognition process used, suitable for well-formed numerics, is described.

• Authors:
  • AGARWAL, S K
  • Boyle, A R
• Publication Date: 1972-3

Media Info

• Features: References;
• Pagination: p. 27-35
• Serial:
  • Surveying and Mapping
  • Publisher: American Congress on Surveying and Mapping

Subject/Index Terms

• TRT Terms: Navigation computers; Position fixing; Surveying
• Old TRIS Terms: Position finding
• Subject Areas: Marine Transportation; Operations and Traffic Management;

Filing Info

• Accession Number: 00044385
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: May 11 1973 12:00AM