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Open AccessArticle

Implementation of Hand Gesture Recognition Device Applicable to Smart Watch Based on Flexible Epidermal Tactile Sensor Array

1
Department of Computer Science, Graduate School, SangMyung University, 20, Hongjimun 2-gil, Jongno-gu, Seoul 03016, Korea
2
Department of Electronic Engineering, SangMyung University, 20, Hongjimun 2-gil, Jongno-gu, Seoul 03016, Korea
*
Author to whom correspondence should be addressed.
Micromachines 2019, 10(10), 692; https://doi.org/10.3390/mi10100692
Received: 17 August 2019 / Revised: 29 September 2019 / Accepted: 10 October 2019 / Published: 12 October 2019
(This article belongs to the Special Issue Tactile Sensing Technology and Systems)
Ever since the development of digital devices, the recognition of human gestures has played an important role in many Human-Computer interface applications. Various wearable devices have been developed, and inertial sensors, magnetic sensors, gyro sensors, electromyography, force-sensitive resistors, and other types of sensors have been used to identify gestures. However, there are different drawbacks for each sensor, which affect the detection of gestures. In this paper, we present a new gesture recognition method using a Flexible Epidermal Tactile Sensor based on strain gauges to sense deformation. Such deformations are transduced to electric signals. By measuring the electric signals, the sensor can estimate the degree of deformation, including compression, tension, and twist, caused by movements of the wrist. The proposed sensor array was demonstrated to be capable of analyzing the eight motions of the wrist, and showed robustness, stability, and repeatability throughout a range of experiments aimed at testing the sensor array. We compared the performance of the prototype device with those of previous studies, under the same experimental conditions. The result shows our recognition method significantly outperformed existing methods.
Keywords: gesture recognition; flexible epidermal tactile sensor array; wearable device; wearable sensors gesture recognition; flexible epidermal tactile sensor array; wearable device; wearable sensors
MDPI and ACS Style

Byun, S.-W.; Lee, S.-P. Implementation of Hand Gesture Recognition Device Applicable to Smart Watch Based on Flexible Epidermal Tactile Sensor Array. Micromachines 2019, 10, 692.

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