WiGAN: A WiFi Based Gesture Recognition System with GANs

In recent years, a series of research experiments have been conducted on WiFi-based gesture recognition. However, current recognition systems are still facing the challenge of small samples and environmental dependence. To deal with the problem of performance degradation caused by these factors, we...

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Main Authors: Dehao Jiang, Mingqi Li, Chunling Xu
Format: Article
Language:English
Published: MDPI AG 2020-08-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/20/17/4757
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author Dehao Jiang
Mingqi Li
Chunling Xu
author_facet Dehao Jiang
Mingqi Li
Chunling Xu
author_sort Dehao Jiang
collection DOAJ
description In recent years, a series of research experiments have been conducted on WiFi-based gesture recognition. However, current recognition systems are still facing the challenge of small samples and environmental dependence. To deal with the problem of performance degradation caused by these factors, we propose a WiFi-based gesture recognition system, WiGAN, which uses Generative Adversarial Network (GAN) to extract and generate gesture features. With GAN, WiGAN expands the data capacity to reduce time cost and increase sample diversity. The proposed system extracts and fuses multiple convolutional layer feature maps as gesture features before gesture recognition. After fusing features, Support Vector Machine (SVM) is exploited for human activity classification because of its accuracy and convenience. The key insight of WiGAN is to generate samples and merge multi-grained feature maps in our designed GAN, which not only enhances the data but also allows the neural network to select different grained features for gesture recognition. According to the result of experiments conducted on two existing datasets, the average recognition accuracy of WiGAN reaches 98% and 95.6%, respectively, outperforming the existing system. Moreover, the recognition accuracy under different experimental environments and different users shows the robustness of WiGAN.
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spelling doaj.art-54da5840aec84d0d8e6e95b6250304992023-11-20T11:03:23ZengMDPI AGSensors1424-82202020-08-012017475710.3390/s20174757WiGAN: A WiFi Based Gesture Recognition System with GANsDehao Jiang0Mingqi Li1Chunling Xu2Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, ChinaShanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, ChinaIn recent years, a series of research experiments have been conducted on WiFi-based gesture recognition. However, current recognition systems are still facing the challenge of small samples and environmental dependence. To deal with the problem of performance degradation caused by these factors, we propose a WiFi-based gesture recognition system, WiGAN, which uses Generative Adversarial Network (GAN) to extract and generate gesture features. With GAN, WiGAN expands the data capacity to reduce time cost and increase sample diversity. The proposed system extracts and fuses multiple convolutional layer feature maps as gesture features before gesture recognition. After fusing features, Support Vector Machine (SVM) is exploited for human activity classification because of its accuracy and convenience. The key insight of WiGAN is to generate samples and merge multi-grained feature maps in our designed GAN, which not only enhances the data but also allows the neural network to select different grained features for gesture recognition. According to the result of experiments conducted on two existing datasets, the average recognition accuracy of WiGAN reaches 98% and 95.6%, respectively, outperforming the existing system. Moreover, the recognition accuracy under different experimental environments and different users shows the robustness of WiGAN.https://www.mdpi.com/1424-8220/20/17/4757wirelessgesture recognitionchannel status informationgenerate adversarial networksupport vector machine
spellingShingle Dehao Jiang
Mingqi Li
Chunling Xu
WiGAN: A WiFi Based Gesture Recognition System with GANs
Sensors
wireless
gesture recognition
channel status information
generate adversarial network
support vector machine
title WiGAN: A WiFi Based Gesture Recognition System with GANs
title_full WiGAN: A WiFi Based Gesture Recognition System with GANs
title_fullStr WiGAN: A WiFi Based Gesture Recognition System with GANs
title_full_unstemmed WiGAN: A WiFi Based Gesture Recognition System with GANs
title_short WiGAN: A WiFi Based Gesture Recognition System with GANs
title_sort wigan a wifi based gesture recognition system with gans
topic wireless
gesture recognition
channel status information
generate adversarial network
support vector machine
url https://www.mdpi.com/1424-8220/20/17/4757
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AT mingqili wiganawifibasedgesturerecognitionsystemwithgans
AT chunlingxu wiganawifibasedgesturerecognitionsystemwithgans