Target Acquisition Studies: (1) Two Dimensional Compared with Three Dimensional Targets. (2) Changes in Gamma for TV Displayed Targets.
Abstract
The study had two major objectives: the first was to determine whether the detection and recognition of 2 D targets are significantly different from the detection and recognition of 3D targets when target acquisition is performed using direct unaided vision and when utilizing a TV display. The second objective was to determine how differences in TV system transfer characteristics (gamma or dynamic gray scale) affect target detection and recognition capability. Trained pilots detected and recognized targets under simulated flight conditions utilizing both 2D and 3D targets with both the unaided eye and with the aid of a closed circuit TV system. Slant ranges and visual angle requirements were determined for the conditions tested. A second series of tests was run to determine the effect of changes in gamma (the gray scale transfer characteristic), on target detection and recognition capability with a TV sensor. Six trained pilots performed simulated targets detection and recognition tasks under three gamma levels. Slant ranges and visual angle requirements were determined for the conditions. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1971
- Accession Number
- AD0718382
Entities
People
- Barry King
- Daniel B. Jones
- Frank D. Fowler
- Melvin Freitag
Organizations
- Martin Marietta