Expressive Interaction Design Using Facial Muscles as Controllers

Here we describe a proof-of-concept case study focusing on the design and development of a novel computer interface that uses facial muscles to control interactivity within a virtual environment. We have developed a system comprised of skin-mounted electrodes that detect underlying muscle activity t...

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Main Authors: Fiona French, Cassandra Terry, Saif Huq, Isaac Furieri, Mateusz Jarzembinski, Simas Pauliukenas, Neil Morrison, Karen Shepherd
Format: Article
Language:English
Published: MDPI AG 2022-09-01
Series:Multimodal Technologies and Interaction
Subjects:
Online Access:https://www.mdpi.com/2414-4088/6/9/78
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author Fiona French
Cassandra Terry
Saif Huq
Isaac Furieri
Mateusz Jarzembinski
Simas Pauliukenas
Neil Morrison
Karen Shepherd
author_facet Fiona French
Cassandra Terry
Saif Huq
Isaac Furieri
Mateusz Jarzembinski
Simas Pauliukenas
Neil Morrison
Karen Shepherd
author_sort Fiona French
collection DOAJ
description Here we describe a proof-of-concept case study focusing on the design and development of a novel computer interface that uses facial muscles to control interactivity within a virtual environment. We have developed a system comprised of skin-mounted electrodes that detect underlying muscle activity through electromyography. The signals from the electrodes are filtered and smoothed, then used as input data to an application that displays a virtual environment with a 3D animated avatar. The user’s expressions control the facial movements of the avatar, thus conveying user emotions through real-time animation of a representative face in a virtual scenario. To achieve this, we collaborated with our Public and Patient Involvement focus group to discuss concepts and design appropriate interactions, while simultaneously developing a prototype system. Programmers and 3D artists worked together to create a system whereby individual user facial muscles are connected to 3D animated models of the same muscle features represented in an avatar, providing the user with an option to receive visual and numerical feedback on the extent of their muscle control. Using the prototype system, people can communicate facial expressions virtually with each other, without the need for a camera. This research is part of an on-going project to develop a facial muscle rehabilitation system that can be optimized to help patients with conditions such as hypomimia.
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spelling doaj.art-3447fa56386a4795abcde0989bcfc77b2023-11-23T18:05:06ZengMDPI AGMultimodal Technologies and Interaction2414-40882022-09-01697810.3390/mti6090078Expressive Interaction Design Using Facial Muscles as ControllersFiona French0Cassandra Terry1Saif Huq2Isaac Furieri3Mateusz Jarzembinski4Simas Pauliukenas5Neil Morrison6Karen Shepherd7Interaction Design Research Group, School of Computing and Digital Media, London Metropolitan University, London N7 8DB, UKMolecular Systems for Health Research Group, School of Human Sciences, London Metropolitan University, London N7 8DB, UKInteraction Design Research Group, School of Computing and Digital Media, London Metropolitan University, London N7 8DB, UKSchool of Computing and Digital Media, London Metropolitan University, London N7 8DB, UKSchool of Computing and Digital Media, London Metropolitan University, London N7 8DB, UKSchool of Computing and Digital Media, London Metropolitan University, London N7 8DB, UKNo affiliationNo affiliationHere we describe a proof-of-concept case study focusing on the design and development of a novel computer interface that uses facial muscles to control interactivity within a virtual environment. We have developed a system comprised of skin-mounted electrodes that detect underlying muscle activity through electromyography. The signals from the electrodes are filtered and smoothed, then used as input data to an application that displays a virtual environment with a 3D animated avatar. The user’s expressions control the facial movements of the avatar, thus conveying user emotions through real-time animation of a representative face in a virtual scenario. To achieve this, we collaborated with our Public and Patient Involvement focus group to discuss concepts and design appropriate interactions, while simultaneously developing a prototype system. Programmers and 3D artists worked together to create a system whereby individual user facial muscles are connected to 3D animated models of the same muscle features represented in an avatar, providing the user with an option to receive visual and numerical feedback on the extent of their muscle control. Using the prototype system, people can communicate facial expressions virtually with each other, without the need for a camera. This research is part of an on-going project to develop a facial muscle rehabilitation system that can be optimized to help patients with conditions such as hypomimia.https://www.mdpi.com/2414-4088/6/9/78interaction designinclusive designbiometricsfacial expression recognitionrehabilitationassistive technology
spellingShingle Fiona French
Cassandra Terry
Saif Huq
Isaac Furieri
Mateusz Jarzembinski
Simas Pauliukenas
Neil Morrison
Karen Shepherd
Expressive Interaction Design Using Facial Muscles as Controllers
Multimodal Technologies and Interaction
interaction design
inclusive design
biometrics
facial expression recognition
rehabilitation
assistive technology
title Expressive Interaction Design Using Facial Muscles as Controllers
title_full Expressive Interaction Design Using Facial Muscles as Controllers
title_fullStr Expressive Interaction Design Using Facial Muscles as Controllers
title_full_unstemmed Expressive Interaction Design Using Facial Muscles as Controllers
title_short Expressive Interaction Design Using Facial Muscles as Controllers
title_sort expressive interaction design using facial muscles as controllers
topic interaction design
inclusive design
biometrics
facial expression recognition
rehabilitation
assistive technology
url https://www.mdpi.com/2414-4088/6/9/78
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AT isaacfurieri expressiveinteractiondesignusingfacialmusclesascontrollers
AT mateuszjarzembinski expressiveinteractiondesignusingfacialmusclesascontrollers
AT simaspauliukenas expressiveinteractiondesignusingfacialmusclesascontrollers
AT neilmorrison expressiveinteractiondesignusingfacialmusclesascontrollers
AT karenshepherd expressiveinteractiondesignusingfacialmusclesascontrollers