Methodological Approaches to Identifying Relevant Features for Visual Flight Simulation.
Abstract
In Task 1, a variety of optical variables relevant to rectilinear locomotion were mathematically isolated, and a paradigm was developed to determine whether optical invariants have a consistent effect on performance. Two experiments were undertaken to explore the efficacy of a paradigm designed to determine the functional utility of global optical invariants. The two tasks chosen were detection of loss in altitude and detection of loss in forward speed. The paths of simulated locomotion were constrained to rectilinear travel with no lateral movementin order to maintain a manageable level of complexity of optical flow analysis. In each case an optical variable proved to be a functional invariant by the criterion that performance was consistent even though the environment variables producing the optical invariant had radically different values. The two functional invariants were of the same type, i.e., specifying fractional or proportional change as the relevant information for displacement of the self with locomotion. The experiments, therefore, provided operations which converged on a common psychophysical explanation for the correspondence between egomotion and egomovement. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1981
- Accession Number
- ADA100199
Entities
People
- Dean H. Owen
- Richard S. Jensen
Organizations
- Ohio State University