Co-registration of speech production datasets from electromagnetic articulography and real-time magnetic resonance imaging

J Acoust Soc Am. 2014 Feb;135(2):EL115-21. doi: 10.1121/1.4862880.

Abstract

This paper describes a spatio-temporal registration approach for speech articulation data obtained from electromagnetic articulography (EMA) and real-time Magnetic Resonance Imaging (rtMRI). This is motivated by the potential for combining the complementary advantages of both types of data. The registration method is validated on EMA and rtMRI datasets obtained at different times, but using the same stimuli. The aligned corpus offers the advantages of high temporal resolution (from EMA) and a complete mid-sagittal view (from rtMRI). The co-registration also yields optimum placement of EMA sensors as articulatory landmarks on the magnetic resonance images, thus providing richer spatio-temporal information about articulatory dynamics.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Validation Study

MeSH terms

  • Acoustics*
  • Anatomic Landmarks
  • Biomechanical Phenomena
  • Databases, Factual
  • Electromagnetic Phenomena*
  • Female
  • Humans
  • Magnetic Resonance Imaging*
  • Mouth / anatomy & histology
  • Mouth / physiology*
  • Pharynx / anatomy & histology
  • Pharynx / physiology*
  • Reproducibility of Results
  • Speech Production Measurement*
  • Speech*
  • Time Factors