Human Performance Evaluation of Matrix Displays.
Abstract
The purpose of this research program was to investigate the influence of matrix display design parameters on operator target recognition performance. Five quantitative matrix display variables (emitter size, on-time, refresh-rate, viewing distance and emitter luminance) and two qualitative variables (emitter shape and packing format) were examined. The five quantitative factors were administered according to a Central-Composite, Response Surface Methodology experimental design four subject groups defined by different emitter shape-packing format combinations. The shape-format combinations were: 1) square emitter packed in an orthogonal matrix, 2) square emitters packed non-orthogonally, 3) hexagonal emitters in a rhombic matrix, and 4) triangular emitters packed orthogonally. Target imagery consisted of profile photographs of tactical vehicles in uniform backgrounds. The observers' task was to recognize the moving targets, and the performance measure was target height at recognition. This measure was transformed into two dependent variables for data analysis, target subtended visual angle at recognition and the number of emitters on the target at recognition. These variables were used to fit a second-order linear polynomial equation by the method of stepwise multiple regression. This equation was designed to specify performance in terms of the five quantitative variables.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1978
- Accession Number
- ADA080120
Entities
People
- G. E. Corrick
- L. A. Scanlon
Organizations
- Hughes Aircraft Company