Flexible piezoelectric sensor-based gait recognition

Title
Flexible piezoelectric sensor-based gait recognition
Authors
김도익차영수Hojoon Kim
Keywords
flexible sensor; gait recognition; piezoelectric material; wearable
Issue Date
2018-02
Publisher
Sensors
Citation
VOL 18, NO 2-468-10
Abstract
Most motion recognition research has required tight-fitting suits for precise sensing. However, tight-suit systems have difficulty adapting to real applications, because people normally wear loose clothes. In this paper, we propose a gait recognition system with flexible piezoelectric sensors in loose clothing. The gait recognition system does not directly sense lower-body angles. It does, however, detect the transition between standing and walking. Specifically, we use the signals from the flexible sensors attached to the knee and hip parts on loose pants. We detect the periodic motion component using the discrete time Fourier series from the signal during walking. We adapt the gait detection method to a real-time patient motion and posture monitoring system. In the monitoring system, the gait recognition operates well. Finally, we test the gait recognition system with 10 subjects, for which the proposed system successfully detects walking with a success rate over 93%.
URI
http://pubs.kist.re.kr/handle/201004/67302
ISSN
1424-8220
Appears in Collections:
KIST Publication > Article
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