English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  The contribution of distinct component configurations to object recognition across changes of view

Liter, J., & Bülthoff, H. (1996). The contribution of distinct component configurations to object recognition across changes of view. Poster presented at Annual Meeting of the Association for Research in Vision and Ophthalmology (ARVO 1996), Fort Lauderdale, FL, USA.

Item is

Files

show Files

Locators

show

Creators

show
hide
 Creators:
Liter, JC1, 2, Author              
Bülthoff, HH1, 2, Author              
Affiliations:
1Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
2Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_1497794              

Content

show
hide
Free keywords: -
 Abstract: Purpose. Objects that differ by qualitative variations in the configurations of their components are more easily recognized from novel viewpoints than are objects that differ quantitatively. This could result because qualitatively different objects have distinct viewpoint-invariant structural descriptions or because images of these objects contain local diagnostic features that are stable over changes of view. Methods. Subjects studied novel, computer-generated objects composed of four long, thin components connected end-to-end. Associated with each target object was a distractor object that had the same three-dimensional structure but different component shapes in all, three, or two of the four positions. The components in the distractor were either the same as those in the target (but rearranged) or different. Subjects studied six target objects and then performed a 2AFC recognition task in which each target object had to be discriminated from its associated distractor. Both objects were rotated ±40° about the vertical axis from the studied viewpoint. Results. Contrary to predictions of structural-description models of shape representation, the percent of correct responses did not vary significantly with the number of changed positions (63.9%, 64.7%, and 64.7%, for 4, 3, and 2 changed positions) or with the addition of a new component shape (63.2% same components, 65.7% different components). Discrimination was enhanced significantly (79.3%. correct), however, if adjacent, identically shaped components in a target were not adjacent in the distractor. Conclusions. These results suggest that the advantages provided by the variations in component configuration that were studied here were not due to the formation of structural descriptions of the objects. Rather, subjects recognized these objects on the basis of salient local features that were preserved across changes of view.

Details

show
hide
Language(s):
 Dates: 1996-02
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: BibTex Citekey: 581
 Degree: -

Event

show
hide
Title: Annual Meeting of the Association for Research in Vision and Ophthalmology (ARVO 1996)
Place of Event: Fort Lauderdale, FL, USA
Start-/End Date: 1996-04-21 - 1996-04-26

Legal Case

show

Project information

show

Source 1

show
hide
Title: Investigative Ophthalmology and Visual Science
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: Hagerstown, MD, etc. : Association for Research in Vision and Ophthalmology, etc.
Pages: - Volume / Issue: 37 (3) Sequence Number: - Start / End Page: S177 Identifier: ISSN: 0146-0404
CoNE: https://pure.mpg.de/cone/journals/resource/110978984074949