THE RELATION OF NUMBER OF SCAN LINES PER SYMBOL HEIGHT TO RECOGNITION OF TELEVISED ALPHANUMERICS.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1964
- Accession Number
- AD0608789
Entities
People
- Alvin M. Snadowsky
- Edward F. Rizy
- Merrill F. Elias
Organizations
- Rome Laboratory