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OB3D, a new set of 3D objects available for research: a web-based study.

Stéphane Buffat1, Véronique Chastres2, Alain Bichot2

  • 1Département Action et Cognition en Situation Opérationnelle, Institut de Recherche Biomédicale des Armées Brétigny, France ; Cognition and Action Group, Cognac G, Service de Santé des Armées, Centre National de la Recherche Scientifique, Université Paris Descartes, Unités Mixtes de Recherche-MD 4 - 8257 Paris, France.

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|October 24, 2014
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Summary

Researchers developed OB3D, a new set of 3D object scans. This resource aids cognitive function studies by providing adaptable stimuli for object recognition research.

Keywords:
categorydata-setnormalizationobject denominationweb-based experiment

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Area of Science:

  • Cognitive Neuroscience
  • Computer Vision
  • Psychology

Background:

  • Object recognition is crucial for cognitive research but limited by static stimulus sets.
  • Existing datasets lack adaptability for diverse research needs.

Purpose of the Study:

  • Introduce OB3D, a novel, adaptable 3D object stimulus set.
  • Establish a reference threshold for object perception using minimal data points.
  • Analyze object complexity and its relation to recognition.

Main Methods:

  • Developed OB3D: a collection of 3D object scans as adaptable ASCII files.
  • Conducted a web-based experiment to determine the minimum dots for object denomination and categorization.
  • Analyzed correlations between stimulus complexity and recognition performance.

Main Results:

  • Identified a reference threshold for object recognition using the OB3D dataset.
  • Demonstrated the versatility of OB3D for cognitive function research.
  • OB3D stimuli activate the Lower Occipital Complex (LOC).

Conclusions:

  • OB3D offers a flexible and valuable resource for studying object recognition.
  • The dataset supports research in healthy individuals and those with cognitive impairments.
  • Findings contribute to understanding visual perception, language, and memory.