Accession Number : ADA294027

Title :   Virtual Reality Psychophysics: Forward and Lateral Distance, Height, and Speed Perceptions with a Wide-Angle Helmet Display.

Descriptive Note : Final technical rept. Jul 92-Apr 94,

Corporate Author : ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ALEXANDRIA VA

Personal Author(s) : Wright, Robert H.

PDF Url : ADA294027

Report Date : APR 1995

Pagination or Media Count : 42

Abstract : Psychophysics of a color, high resolution, very wide angle, virtual reality type of helmet-mounted display were investigated. Subjects used a joystick to set their viewpoint within a computer-generated image database to requested target values in forward and lateral distance, height, and speed. Test factors for each type of perception included helicopter flying experience, replications, 3-D with familiar objects or 2-D texture visual databases, relative or absolute perceptions, viewpoint motion rail row and column offsets, increasing or decreasing change in target values, and six target values. Median forward distance and speed perceptions were 41% of simulated physical stimuli, 50% for lateral distance, and 72% for, height. These accuracies contrast with typical real-world accuracies for similar ranges of about 90% for distance, height, and speed. Main effort differences between most of the test factor levels were highly significant for all four types of perceptions. (AN)

Descriptors :   *VISUAL PERCEPTION, *VIRTUAL REALITY, *PSYCHOPHYSICS, TEST AND EVALUATION, VELOCITY, DATA BASES, COMPUTERIZED SIMULATION, IMAGE PROCESSING, CONTRAST, FORWARD AREAS, ACCURACY, HIGH RESOLUTION, REGRESSION ANALYSIS, THREE DIMENSIONAL, CORRELATION, HELICOPTERS, ERROR ANALYSIS, COLOR DISPLAYS, COMPUTER GRAPHICS, COMPUTER VISION, STIMULI, FLIGHT SIMULATORS, RANGE(DISTANCE), HEIGHT, PERCEPTION(PSYCHOLOGY), WIDE ANGLES, VISUAL TARGETS, HELMET MOUNTED DISPLAYS.

Subject Categories : Psychology
      Bionics
      Cybernetics

Distribution Statement : APPROVED FOR PUBLIC RELEASE