Shape Recognition Inputs To Figure-Ground Organization in Three-Dimensional Displays

Mary A Peterson, B. S. Gibson

Research output: Contribution to journalArticle

101 Citations (Scopus)

Abstract

It is generally agreed that figure and ground relationships must be determined, at least provisionally, before shape representations can be assessed. We have proposed that some shape recognition processes can operate in parallel with processes assessing other variables relevant to figure-ground organization. The influence of these shape recognition processes should be observed only when shape edges can be detected early enough in visual processing so that the critical shape recognition operations can be finished before figure-ground computations are completed. In three experiments, we tested this prediction using stereograms portraying two regions equal in area, but unequal in denotivity (roughly, meaningfulness): One region was high in denotivity, the other region was low in denotivity. Binocular disparity specified that either the high denotative region or the low denotative region was in front (i.e., was figure). For some stereograms (random dot stereograms), no edge was visible between the two regions until after stereo fusion; for other stereograms (black-and-white stereograms), a luminance edge was visible before fusion. In black-and-white stereograms, but not in random-dot stereograms, high denotative regions could appear to be in front (i.e., to be figure) and the shapes they depicted could be recognized, even when this organization was inconsistent with the disparity. These results are consistent with the hypothesis that shape recognition processes can contribute to figure-ground computations, at least when the figure-ground border is a luminance contrast edge. Implications for shape recognition and perceptual organization are discussed.

Original languageEnglish (US)
Pages (from-to)383-429
Number of pages47
JournalCognitive Psychology
Volume25
Issue number3
DOIs
StatePublished - Jul 1993

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Display devices
organization
Luminance
Fusion reactions
Binoculars
Vision Disparity
Processing
Recognition (Psychology)
Experiments
experiment
hydroquinone

ASJC Scopus subject areas

  • Linguistics and Language
  • Experimental and Cognitive Psychology

Cite this

Shape Recognition Inputs To Figure-Ground Organization in Three-Dimensional Displays. / Peterson, Mary A; Gibson, B. S.

In: Cognitive Psychology, Vol. 25, No. 3, 07.1993, p. 383-429.

Research output: Contribution to journalArticle

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