A data-driven classification of 3D foot types by archetypal shapes based on landmarks
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comunitat-uji-handle2:10234/7037
comunitat-uji-handle3:10234/8635
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Title
A data-driven classification of 3D foot types by archetypal shapes based on landmarksAuthor (s)
Date
2020-01-30Publisher
Costin Daniel Untaroiu (Virginia Tech, USA); PLOSBibliographic citation
Alcacer A, Epifanio I, Ibáñez MV, Simó A, Ballester A (2020) A data-driven classification of 3D foot types by archetypal shapes based on landmarks. PLoS ONE 15(1): e0228016. https://doi.org/10.1371/journal.pone.0228016Type
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info:eu-repo/semantics/publishedVersionSubject
Abstract
The taxonomy of foot shapes or other parts of the body is important, especially for design purposes. We propose a methodology based on archetypoid analysis (ADA) that overcomes the weaknesses of previous methodologies ... [+]
The taxonomy of foot shapes or other parts of the body is important, especially for design purposes. We propose a methodology based on archetypoid analysis (ADA) that overcomes the weaknesses of previous methodologies used to establish typologies. ADA is an objective, data-driven methodology that seeks extreme patterns, the archetypal profiles in the data. ADA also explains the data as percentages of the archetypal patterns, which makes this technique understandable and accessible even for non-experts. Clustering techniques are usually considered for establishing taxonomies, but we will show that finding the purest or most extreme patterns is more appropriate than using the central points returned by clustering techniques. We apply the methodology to an anthropometric database of 775 3D right foot scans representing the Spanish adult female and male population for footwear design. Each foot is described by a 5626 × 3 configuration matrix of landmarks. No multivariate features are used for establishing the taxonomy, but all the information gathered from the 3D scanning is employed. We use ADA for shapes described by landmarks. Women’s and men’s feet are analyzed separately. We have analyzed 3 archetypal feet for both men and women. These archetypal feet could not have been recovered using multivariate techniques. [-]
Investigation project
Spanish Ministry of Science, Innovation and Universities (AEI/FEDER, EU) (DPI2017-87333-R) ; Universitat Jaume I (UJI-B2017-13)Rights
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Except where otherwise noted, this item's license is described as © 2020 Alcacer et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.