Accession Number:

ADA094077

Title:

Analysis of Dynamic Visual Processing

Descriptive Note:

Technical rept.

Corporate Author:

MIAMI UNIV OXFORD OH DEPT OF PSYCHOLOGY

Personal Author(s):

Report Date:

1980-12-01

Pagination or Media Count:

128.0

Abstract:

These empirical studies were designed to elucidate the visual mechanisms or channels responsible for the spatiotemporal processing of dynamic imagery. The studies are conveniently placed into four different categories according to the type of display employed. A sustained-transient channels model of visual function was used as the framework for the conduct and interpretation of the experiments. 1 In the first series of studies it was shown that the pattern of masking effects produced by a background of particular spatial frequency content upon a set of test targets cannot be predicted without knowing the temporal characteristics of both the background and target. 2 Studies of the effects of sine-wave adaptation on perceptual organization. Selective adaptation to sine-wave gratings was found to bias the perceptual organization of a bistable spatiotemporal display. 3 Studies with alternating, Julesz-type random-element patterns. In experiments in which the perception of a global subjective figure depended upon local correlations of individual elements in successive time frames, it was found that the clarity of the subjective figure decreased gradually as the orientation difference between elements in the successive frames increased. 4 Studies of dynamic texture processing. The perception of a subjective figure based upon texture cues in a dynamic display was found to depend upon a process which consisted of at least two adaptable components one component involving a representation or coding of the spatial details of the individual texture elements themselves, and another component involving a representation or coding of the figure as a whole.

Subject Categories:

  • Psychology
  • Anatomy and Physiology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE