Effects of Area-of-Interest Display Characteristics of Visual Search Performance and Head Movements in Simulated Low-Level Flight
Abstract
An investigation was conducted to evaluate the influence of area-of- interest (AOI) display characteristics on target detection performance and head movements. Two AOI display conditions were compared: a small (26.44 by 21.51 deg horizontal and vertical), higher resolution AOI and a large (40.00 by 30.00 deg horizontal and vertical), lower resolution AOI. The observers viewed a computer- generated visual scene consisting of three-dimensional cylinder-shaped objects placed upright on a desert like terrain surface. Black bands were modeled on some of the cylinders, and the bands constituted the targets. Cylinders height and diameter were varied alon with the position of the banded cylinders relative to the flight path of the simulated aircraft. Both pilots and nonpilots were used as observers. Results indicate that target detection distance varied as a function of AOI condition and the height and diameter of the cylinders on which the bands were placed, but not type of observer. Both horizontal and vertical head movements were sensitive to the differences between the AOI conditions, and the vertical movements were also influenced by type of observer. We recommend that the small, higher resolution AOI be used in situations where greater target detection distance and higher image detail are required.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1993
- Accession Number
- ADA264661
Entities
People
- David C. Hubbard
- Gary L. Serfoss
- Harold D. Warner
Organizations
- University of Dayton