Ego noise reduction for hose-shaped rescue robot combining independent low-rank matrix analysis and noise cancellation

Narumi Mae, Daichi Kitamura, Masaru Ishimura, Takeshi Yamada, Shoji Makino

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

In this paper, we present an ego noise reduction method for a hose-shaped rescue robot developed for search and rescue operations in large-scale disasters such as a massive earthquake. It can enter narrow and dark places covered with rubble in a disaster site and is used to search for disaster victims by capturing their voices with its microphone array. However, ego noises, such as vibration or fricative sounds, are mixed with the voices, and it is difficult to differentiate them from a call for help from a disaster victim. To solve this problem, we here propose a two-step noise reduction method as follows: (1) the estimation of both speech and ego noise signals from an observed multichannel signal by multichannel nonnegative matrix factorization (NMF) with the rank-1 spatial constraint, which was proposed by Kitamura et al., and (2) the application of noise cancellation to the estimated speech signal using the noise reference. Our evaluations show that this approach is effective for suppressing ego noise.

本文言語English
ホスト出版物のタイトル2016 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2016
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9789881476821
DOI
出版ステータスPublished - 2017 1 17
外部発表はい
イベント2016 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2016 - Jeju, Korea, Republic of
継続期間: 2016 12 132016 12 16

出版物シリーズ

名前2016 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2016

Other

Other2016 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2016
国/地域Korea, Republic of
CityJeju
Period16/12/1316/12/16

ASJC Scopus subject areas

  • 人工知能
  • コンピュータ サイエンスの応用
  • 情報システム
  • 信号処理

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