Decoding of facial strains via conformable piezoelectric interfaces.
Journal
Nature biomedical engineering
ISSN: 2157-846X
Titre abrégé: Nat Biomed Eng
Pays: England
ID NLM: 101696896
Informations de publication
Date de publication:
10 2020
10 2020
Historique:
received:
10
02
2020
accepted:
19
08
2020
entrez:
23
10
2020
pubmed:
24
10
2020
medline:
31
12
2020
Statut:
ppublish
Résumé
Devices that facilitate nonverbal communication typically require high computational loads or have rigid and bulky form factors that are unsuitable for use on the face or on other curvilinear body surfaces. Here, we report the design and pilot testing of an integrated system for decoding facial strains and for predicting facial kinematics. The system consists of mass-manufacturable, conformable piezoelectric thin films for strain mapping; multiphysics modelling for analysing the nonlinear mechanical interactions between the conformable device and the epidermis; and three-dimensional digital image correlation for reconstructing soft-tissue surfaces under dynamic deformations as well as for informing device design and placement. In healthy individuals and in patients with amyotrophic lateral sclerosis, we show that the piezoelectric thin films, coupled with algorithms for the real-time detection and classification of distinct skin-deformation signatures, enable the reliable decoding of facial movements. The integrated system could be adapted for use in clinical settings as a nonverbal communication technology or for use in the monitoring of neuromuscular conditions.
Identifiants
pubmed: 33093670
doi: 10.1038/s41551-020-00612-w
pii: 10.1038/s41551-020-00612-w
doi:
Substances chimiques
Dimethylpolysiloxanes
0
baysilon
63148-62-9
Types de publication
Journal Article
Research Support, N.I.H., Extramural
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Video-Audio Media
Langues
eng
Sous-ensembles de citation
IM
Pagination
954-972Commentaires et corrections
Type : CommentIn
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