A Human–Computer Interface Replacing Mouse and Keyboard for Individuals with Limited Upper Limb Mobility

People with physical disabilities in their upper extremities face serious issues in using classical input devices due to lacking movement possibilities and precision. This article suggests an alternative input concept and presents corresponding input devices. The proposed interface combines an inert...

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Main Authors: Diyar Gür, Niklas Schäfer, Mario Kupnik, Philipp Beckerle
Format: Article
Language:English
Published: MDPI AG 2020-11-01
Series:Multimodal Technologies and Interaction
Subjects:
Online Access:https://www.mdpi.com/2414-4088/4/4/84
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author Diyar Gür
Niklas Schäfer
Mario Kupnik
Philipp Beckerle
author_facet Diyar Gür
Niklas Schäfer
Mario Kupnik
Philipp Beckerle
author_sort Diyar Gür
collection DOAJ
description People with physical disabilities in their upper extremities face serious issues in using classical input devices due to lacking movement possibilities and precision. This article suggests an alternative input concept and presents corresponding input devices. The proposed interface combines an inertial measurement unit and force sensing resistors, which can replace mouse and keyboard. Head motions are mapped to mouse pointer positions, while mouse button actions are triggered by contracting mastication muscles. The contact pressures of each fingertip are acquired to replace the conventional keyboard. To allow for complex text entry, the sensory concept is complemented by an ambiguous keyboard layout with ten keys. The related word prediction function provides disambiguation at word level. Haptic feedback is provided to users corresponding to their virtual keystrokes for enhanced closed-loop interactions. This alternative input system enables text input as well as the emulation of a two-button mouse.
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spelling doaj.art-4f59c7bdd68a4680b9e3acaf00a2eb392023-11-20T22:33:03ZengMDPI AGMultimodal Technologies and Interaction2414-40882020-11-01448410.3390/mti4040084A Human–Computer Interface Replacing Mouse and Keyboard for Individuals with Limited Upper Limb MobilityDiyar Gür0Niklas Schäfer1Mario Kupnik2Philipp Beckerle3Department of Electrical Engineering and Information Technology, Technical University of Darmstadt, 64283 Darmstadt, GermanyMeasurement and Sensor Technology, Department of Electrical Engineering and Information Technology, Technical University of Darmstadt, 64283 Darmstadt, GermanyMeasurement and Sensor Technology, Department of Electrical Engineering and Information Technology, Technical University of Darmstadt, 64283 Darmstadt, GermanyElastic Lightweight Robotics Group, Robotics Research Institute, Department of Electrical Engineering and Information Technology, Technische Universität Dortmund, 44227 Dortmund, GermanyPeople with physical disabilities in their upper extremities face serious issues in using classical input devices due to lacking movement possibilities and precision. This article suggests an alternative input concept and presents corresponding input devices. The proposed interface combines an inertial measurement unit and force sensing resistors, which can replace mouse and keyboard. Head motions are mapped to mouse pointer positions, while mouse button actions are triggered by contracting mastication muscles. The contact pressures of each fingertip are acquired to replace the conventional keyboard. To allow for complex text entry, the sensory concept is complemented by an ambiguous keyboard layout with ten keys. The related word prediction function provides disambiguation at word level. Haptic feedback is provided to users corresponding to their virtual keystrokes for enhanced closed-loop interactions. This alternative input system enables text input as well as the emulation of a two-button mouse.https://www.mdpi.com/2414-4088/4/4/84assistive technologyalternative input devicekeyboard replacementhands-free mousevibrotactile feedback
spellingShingle Diyar Gür
Niklas Schäfer
Mario Kupnik
Philipp Beckerle
A Human–Computer Interface Replacing Mouse and Keyboard for Individuals with Limited Upper Limb Mobility
Multimodal Technologies and Interaction
assistive technology
alternative input device
keyboard replacement
hands-free mouse
vibrotactile feedback
title A Human–Computer Interface Replacing Mouse and Keyboard for Individuals with Limited Upper Limb Mobility
title_full A Human–Computer Interface Replacing Mouse and Keyboard for Individuals with Limited Upper Limb Mobility
title_fullStr A Human–Computer Interface Replacing Mouse and Keyboard for Individuals with Limited Upper Limb Mobility
title_full_unstemmed A Human–Computer Interface Replacing Mouse and Keyboard for Individuals with Limited Upper Limb Mobility
title_short A Human–Computer Interface Replacing Mouse and Keyboard for Individuals with Limited Upper Limb Mobility
title_sort human computer interface replacing mouse and keyboard for individuals with limited upper limb mobility
topic assistive technology
alternative input device
keyboard replacement
hands-free mouse
vibrotactile feedback
url https://www.mdpi.com/2414-4088/4/4/84
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