Information Processing Through Visual Perception as a Function of Signal-to-Noise Ratio, Bandwidth, Contrast, and Type of Noise on a Television Display,
Abstract
To determine the optimum balances between signal-to-noise ratio and bandwidth for digital encoding television systems, a methodology was developed utilizing target identification in which man was considered as a receiver and processor of information presented on a display. A closed circuit television system and a three-dimensional simulated terrain were used to measure ten observers' responses on a target identification task. Two dependent variables (frame rate and probability of target identification) were used to assess the effects of the independent variables: bandwidth (0.5, 1, 2, and 3 mHz), signal-to-noise ratio (-12, -18, -24, and -30 db), contrast (33, 60, and 80 percent), and type of noise (random and weighted). (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 06, 1971
- Accession Number
- AD0732311
Entities
People
- Dorothy Mae Johnston
Organizations
- North Carolina State University