Automatic Scratching Time Estimation System for Piezo-Electric Ceramic Sensor Utilizing Hidden Markov Model

Kazuaki Shiba1, Hikaru Iwasaki2, Moriyasu Muto2, Takashi Kaburagi2, Yosuke Kurihara2

  • 1AoyamaGakuin University
  • 2Aoyama Gakuin University

Details

09:05 - 09:55 | Fri 17 Feb | Ballroom D | FrRAF.19

Session: Rapid Fire Session 03: Sensor Informatics II

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Abstract

Itching is a symptom of various diseases and patients scratch their skin for relief. One of the measures used to objectively evaluate the pruritus is called the total scratch time (TST). In this paper, we present a system utilizing the Hidden Markov model (HMM) to estimate the scratching time considering a time series signal of a piezo-electric ceramic placed under the leg of a bed. The preliminary experiment resulted in an accuracy of 95.1%.