論文

査読有り
2017年2月1日

Bird song scene analysis using a spatial-cue-based probabilistic model

Journal of Robotics and Mechatronics
  • Ryosuke Kojima
  • ,
  • Osamu Sugiyama
  • ,
  • Kotaro Hoshiba
  • ,
  • Kazuhiro Nakadai
  • ,
  • Reiji Suzuki
  • ,
  • Charles E. Taylor

29
1
開始ページ
236
終了ページ
246
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.20965/jrm.2017.p0236
出版者・発行元
Fuji Technology Press

This paper addresses bird song scene analysis based on semi-automatic annotation. Research in animal behavior, especially in birds, would be aided by automated or semi-automated systems that can localize sounds, measure their timing, and identify their sources. This is difficult to achieve in real environments, in which several birds at different locations may be singing at the same time. Analysis of recordings from the wild has usually required manual annotation. These annotations may be inaccurate or inconsistent, as they may vary within and between observers. Here we suggest a system that uses automated methods from robot audition, including sound source detection, localization, separation and identification. In robot audition, these technologies are assessed separately, but combining them has often led to poor performance in natural setting. We propose a new Spatial-Cue-Based Probabilistic Model (SCBPM) for their integration focusing on spatial information. A second problem has been that supervised machine learning methods usually require a pre-trained model, which may need a large training set of annotated labels. We have employed a semi-automatic annotation approach, in which a semi-supervised training method is deduced for a new model. This method requires much less pre-annotation. Preliminary experiments with recordings of bird songs from the wild revealed that our system outperformed the identification accuracy of a method based on conventional robot audition.

リンク情報
DOI
https://doi.org/10.20965/jrm.2017.p0236
URL
https://www.fujipress.jp/jrm/rb/robot002900010236/
ID情報
  • DOI : 10.20965/jrm.2017.p0236
  • ISSN : 1883-8049
  • ISSN : 0915-3942
  • SCOPUS ID : 85013956758

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