Spatial Orientation from High-Velocity Blur Patterns: Perception of Divergence.
Abstract
Under conditions of high-velocity motion the textures in an observer's field of view are transformed into blur patterns, patterns of blur lines formed by elements in the terrain appearing to streak as a result of the visual system's persistence. Under these conditions most of the usual visual correlates of depth perception fail to operate but new motion-related information becomes available in the form of blur-line divergence and curvature. The experiments reported here determine human ability to process this rapidly moving divergence information. Using simulated blur patterns, divergence thresholds were determined for nine segments of the visual field at three velocities; observers were also required to use the divergence information for orientation of a surface in correspondence with their own perceptions of the inclination of the plane of motion.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1977
- Accession Number
- ADA035408
Entities
People
- Marcia Harrington
- Thomas L. Harrington
Organizations
- University of Nevada, Reno