Three-dimensional electromagnetic articulograph based ona nonparametric representation of the magnetic field

Tokihiko Kaburagi, Kohei Wakamiya, Masaaki Honda

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

A measurement method of the three-dimensional electromagnetic articulograph system is presented to investigate the dynamic behavior of articulatory organs which can include lateral or rotational movements. To accurately represent the spatial pattern of the magnetic field, we use a multivariate B-spline function, which smoothly interpolates a given set of calibration data samples. The strength of the received signal is predicted based on the spline field function while considering the tilting effect of the receiver coil relative to the direction of the magnetic field. The position and orientation of the receiver coil are then estimated using an iterative procedure so that the difference between the measured and predicted signal strengths is minimized. Preliminary experiments showed that the mean estimation error of the receiver position is about 0.5 mm when the axis of the receiver coil is parallel with one of the axes of the coordinate system.

本文言語English
ホスト出版物のタイトル7th International Conference on Spoken Language Processing, ICSLP 2002
出版社International Speech Communication Association
ページ2297-2300
ページ数4
出版ステータスPublished - 2002
外部発表はい
イベント7th International Conference on Spoken Language Processing, ICSLP 2002 - Denver, United States
継続期間: 2002 9 162002 9 20

Other

Other7th International Conference on Spoken Language Processing, ICSLP 2002
国/地域United States
CityDenver
Period02/9/1602/9/20

ASJC Scopus subject areas

  • 言語および言語学
  • 言語学および言語

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