Accession Number : ADA133597

Title :   Optical Flow and Texture Variables Useful in Simulating Self Motion (II).

Descriptive Note : Final technical rept. 1 Feb 82-31 Mar 83,


Personal Author(s) : Owen,Dean H

PDF Url : ADA133597

Report Date : Jun 1983

Pagination or Media Count : 143

Abstract : This report outlines a program of research applying ecological optics to the study of visual information useful for detecting and guiding self motion during flight. Techniques are presented for isolating optical sources of information by controlling simulated flight path and speed variables in conjunction with ground surface texture variables. Problems encountered in the design of experiments using higher-order ratios exhibiting constrained linkages are discussed, and several solutions are suggested. A case is made for the necessity of considering the entire perception-(control) action cycle in the study of self-motion sensitivity, and implications of ecological optics experiments for the understanding of 'smart' information-specifying visual system mechanisms are discussed. Three experiments are presented testing the usefulness of optical variables and invariants for detecting changes in speed and altitude. Our findings to date provide a basis for the development of tests to evaluate candidates for flight training, the simulators with which pilots are trained, and improvement in sensitivity with training. In addition, our approach provides a sound empirical foundation from which to begin interactive experiments in which pilots control, rather than simply react to, the variables and invariants of optical stimulation.

Descriptors :   *Space perception, *Motion, *Flight simulation, *Optics, Visual perception, Judgement(Psychology), Optical properties, Flow, Texture, Flight maneuvers, Performance(Human), Control, Pilots, Aircraft landings, Variables, Acceleration, Deceleration, Altitude, Degrees of freedom, Optical analysis, Mathematical analysis

Subject Categories : Psychology
      Personnel Management and Labor Relations
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE