Multi-stream HMM for EMG-based speech recognition

H. Manabe, Z. Zhang

研究成果: Conference article査読

20 被引用数 (Scopus)


A technique for improving the recognition accuracy of EMG-based speech recognition by applying existing speech recognition technologies is proposed. The authors have proposed an EMG-based speech recognition system that requires only mouth movements, voice need not be generated. A multi-stream HMM (Hidden Markov Model) and feature extraction technique are applied to EMG-based speech recognition. 3 channel facial EMG signals are collected from ten subjects when uttering 10 Japanese isolated digits. One channel corresponds to one stream. By examining various features, we found that the delta component of the static parameter leads to higher accuracy. Compared to equal stream weighting, the individual optimization of stream weights increased recognition accuracy by 4. 0% which corresponds to a 12.8% reduction in error rate. This result shows that multi-stream HMM is effective for the classification of EMG.

ジャーナルAnnual International Conference of the IEEE Engineering in Medicine and Biology - Proceedings
26 VI
出版ステータスPublished - 2004 12月 1
イベントConference Proceedings - 26th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBC 2004 - San Francisco, CA, United States
継続期間: 2004 9月 12004 9月 5

ASJC Scopus subject areas

  • 信号処理
  • 生体医工学
  • コンピュータ ビジョンおよびパターン認識
  • 健康情報学


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