Accession Number:

AD0608789

Title:

THE RELATION OF NUMBER OF SCAN LINES PER SYMBOL HEIGHT TO RECOGNITION OF TELEVISED ALPHANUMERICS.

Descriptive Note:

Interim rept.,

Corporate Author:

ROME AIR DEVELOPMENT CENTER GRIFFISS AFB N Y

Report Date:

1964-10-01

Pagination or Media Count:

27.0

Abstract:

To determine the effect of symbol resolution on the recognition of alphanumeric symbols displayed on a television screen video tube, 10 subjects were repeatedly exposed to 36 symbols under 9 conditions of symbol resolution. Results indicated that, depending upon its unique configuration, a symbol will require a greater or fewer number of scan lines than another to be correctly identified and, for most symbols, a resolution as low as three or four scan lines is not adequate for acceptable accuracy of identification under controlled laboratory conditions. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE