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Similarity Judgments of Hand-Based Actions: From Human Perception to a Computational Model
University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre. (Interaction Lab (ILAB))ORCID iD: 0000-0002-1227-6843
University of Skövde, School of Informatics. University of Skövde, The Informatics Research Centre. (Interaction Lab (ILAB))
DIBRIS, University of Genoa, Italy.
RBCS Department, Instituto Italiano Di Technologica, Genoa, Italy.
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2019 (English)In: 42nd European Conference on Visual Perception (ECVP) 2019 Leuven, Sage Publications, 2019, Vol. 48, p. 79-79Conference paper, Oral presentation with published abstract (Refereed)
Abstract [en]

How do humans perceive actions in relation to other similar actions? How can we develop artificial systems that can mirror this ability? This research uses human similarity judgments of point-light actions to evaluate the output from different visual computing algorithms for motion understanding, based on movement, spatial features, motion velocity, and curvature. The aim of the research is twofold: (a) to devise algorithms for motion segmentation into action primitives, which can then be used to build hierarchical representations for estimating action similarity and (b) to develop a better understanding of human actioncategorization in relation to judging action similarity. The long-term goal of the work is to allow an artificial system to recognize similar classes of actions, also across different viewpoints. To this purpose, computational methods for visual action classification are used and then compared with human classification via similarity judgments. Confusion matrices for similarity judgments from these comparisons are assessed for all possible pairs of actions. The preliminary results show some overlap between the outcomes of the two analyses. We discuss the extent of the consistency of the different algorithms with human action categorization as a way to model action perception.

Place, publisher, year, edition, pages
Sage Publications, 2019. Vol. 48, p. 79-79
Series
Perception, ISSN 0301-0066, E-ISSN 1468-4233 ; 48
Keywords [en]
biological motion, action primitives, artificial systems
National Category
Applied Psychology
Research subject
Interaction Lab (ILAB)
Identifiers
URN: urn:nbn:se:his:diva-17831DOI: 10.1177/0301006619863862OAI: oai:DiVA.org:his-17831DiVA, id: diva2:1366476
Conference
42nd European Conference on Visual Perception (ECVP) Leuven, Belgium, August 25-29, 2019
Available from: 2019-10-29 Created: 2019-10-29 Last updated: 2019-11-06Bibliographically approved

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Hemeren, PaulNair, Vipul

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Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
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More styles
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  • de-DE
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  • Other locale
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Output format
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