IEEE Consumer Electronics Magazine - March 2018 - 73
©iStockphoto.com/Jiraro praditcharoenkul
Advanced Interaction and VR/AR
Detecting Hand
Gestures with
Wi-Fi Technology
By Ricky Lap-Hou Lao and
Angus Kin-Yeung Wong
Applications for received-signal-strength indicators
in interactive interface design.
I
n this article, extensive
experiments were conducted to
investigate how received-signalstrength indicator (RSSI) values
in Wi-Fi packets change when
different hand gestures are performed. Furthermore, we were able
to positively recognize some hand
gestures by detecting the changes in
RSSI values. In our experiments, a
broadband router and wireless
adaptor were used as the transmitter
and receiver for generating and
receiving data packets, respectively. The evaluated hand gestures
included horizontal and vertical hand positions, moving the hand
away from and toward the receiver, swiping the hand in different
directions, a turnkey gesture, a clap, a "come here" gesture, and
opening and closing gestures. The results show that there are
three hand gestures (clap, vertical hand, and hand toward) that
can be recognized with high accuracy. Finally, we implemented
©iStockphoto.com/GeorGe peterS
an application (a video player) to demonstrate how the change in
RSSI values can be used in interactive designs. When a user
claps his/her hands, the video player starts the playback. If the
user lays his/her hand in front of the receiver, the playback is
paused. Moreover, if the user moves his/her hand toward the
receiver, then the video player application closes.
HAND-GESTURE DETECTION USING RSSI
Digital Object Identifier 10.1109/MCE.2017.2718358
Date of publication: 8 February 2018
2162-2248/18©2018IEEE
There are a number of techniques for detecting the movement
of human bodies and hand gestures, e.g., using accelerometers,
MARCH 2018
^
IEEE Consumer Electronics Magazine
73
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