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

Tokihiko Kaburagi, Kohei Wakamiya, Masaaki Honda

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Title of host publication7th International Conference on Spoken Language Processing, ICSLP 2002
PublisherInternational Speech Communication Association
Pages2297-2300
Number of pages4
Publication statusPublished - 2002
Externally publishedYes
Event7th International Conference on Spoken Language Processing, ICSLP 2002 - Denver, United States
Duration: 2002 Sep 162002 Sep 20

Other

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

ASJC Scopus subject areas

  • Language and Linguistics
  • Linguistics and Language

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    Kaburagi, T., Wakamiya, K., & Honda, M. (2002). Three-dimensional electromagnetic articulograph based ona nonparametric representation of the magnetic field. In 7th International Conference on Spoken Language Processing, ICSLP 2002 (pp. 2297-2300). International Speech Communication Association.