Document Detail


Recovery of 3-D shape from deforming contours.
MedLine Citation:
PMID:  2030928     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Three experiments were conducted to examine the accuracy of 3-D shape recovery from deforming-contour displays. The displays simulated silhouettes of ellipsoids rotating about a vertical axis. Subjects judged the horizontal cross-section of the ellipsoids. The shape of the ellipsoid, the position of the axis of rotation, and the type of projection were manipulated in Experiment 1. The results indicated relatively accurate shape recovery when the major axis of the ellipsoid was small. In Experiment 2, the shape of the ellipsoid and the velocity and curvature of the contour were manipulated. When the rate of deformation of curvature was decreased, more eccentric shapes were reported. In Experiment 3, the shape of the object and the amount of simulated rotation were manipulated. Subjects made both shape and extent of rotation judgments. The results showed that eccentricity of shape responses could be accurately predicted from rotation responses, suggesting that the recovery of 3-D shape from smooth, deforming contours is dependent on the perceived extent of rotation.
Authors:
J M Cortese; G J Andersen
Related Documents :
12868638 - Three-dimensional symmetric shapes are discriminated more efficiently than asymmetric o...
19653948 - Preferences of minipigs for environmental enrichment objects.
16319198 - Responses of a looming-sensitive neuron to compound and paired object approaches.
24921578 - White light wavefront control with a spatial light modulator.
10202058 - Mucosal exposure to light during routine endoscopy.
14500998 - Melanopsin in the circadian timing system.
Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Perception & psychophysics     Volume:  49     ISSN:  0031-5117     ISO Abbreviation:  Percept Psychophys     Publication Date:  1991 Apr 
Date Detail:
Created Date:  1991-06-19     Completed Date:  1991-06-19     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0200445     Medline TA:  Percept Psychophys     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  315-27     Citation Subset:  C    
Affiliation:
University of Illinois, Urbana-Champaign.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Depth Perception*
Form Perception*
Humans
Judgment*
Mathematics
Motion Perception*
Optics and Photonics

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Occupancy model of perceived numerosity.
Next Document:  Adaptation to form distortion of a familiar shape.