Accession Number:

ADA012790

Title:

Parallel Optical Processing to Convert Elevation Data to Slope Maps. Phase II. Practical Considerations.

Descriptive Note:

Research note,

Corporate Author:

ARMY ENGINEER TOPOGRAPHIC LABS FORT BELVOIR VA

Personal Author(s):

Report Date:

1975-02-01

Pagination or Media Count:

19.0

Abstract:

The considerations in designing and calibrating a coherent optical data processing system for quantitative slope computation from a transparency with amplitude transmittances as a function of surface terrain elevations are described in this report. Methods of designing the spatial filter and criteria for selecting the optical system components to minimize the errors in determining slopes are described. Procedures for calibrating the input transparency and the optical system are specified. Author

Subject Categories:

  • Cartography and Aerial Photography

Distribution Statement:

APPROVED FOR PUBLIC RELEASE