NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Synthetic perspective optical flow: Influence on pilot control tasksOne approach used to better understand the impact of visual flow on control tasks has been to use synthetic perspective flow patterns. Such patterns are the result of apparent motion across a grid or random dot display. Unfortunately, the optical flow so generated is based on a subset of the flow information that exists in the real world. The danger is that the resulting optical motions may not generate the visual flow patterns useful for actual flight control. Researchers conducted a series of studies directed at understanding the characteristics of synthetic perspective flow that support various pilot tasks. In the first of these, they examined the control of altitude over various perspective grid textures (Johnson et al., 1987). Another set of studies was directed at studying the head tracking of targets moving in a 3-D coordinate system. These studies, parametric in nature, utilized both impoverished and complex virtual worlds represented by simple perspective grids at one extreme, and computer-generated terrain at the other. These studies are part of an applied visual research program directed at understanding the design principles required for the development of instruments displaying spatial orientation information. The experiments also highlight the need for modeling the impact of spatial displays on pilot control tasks.
Document ID
19900013640
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Bennett, C. Thomas (NASA Ames Research Center Moffett Field, CA., United States)
Johnson, Walter W. (NASA Ames Research Center Moffett Field, CA., United States)
Perrone, John A. (NASA Ames Research Center Moffett Field, CA., United States)
Phatak, Anil V. (Analytical Mechanics Associates, Inc., Palo Alto CA., United States)
Date Acquired
September 6, 2013
Publication Date
July 1, 1989
Publication Information
Publication: Spatial Displays and Spatial Instruments
Subject Category
Man/System Technology And Life Support
Accession Number
90N22956
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available