Super-imposing maxillary and palatal locations for electroarticulometry: A SIMPLE method

J Acoust Soc Am. 2015 Aug;138(2):EL161-6. doi: 10.1121/1.4927634.

Abstract

This study proposes a method of superimposing a physical palatal profile, extracted from a speaker's maxillary impression, onto real-time mid-sagittal articulatory data. A palatal/dental profile is first obtained by three-dimensional-scanning the maxillary impression of the speaker. Then a high resolution mid-sagittal palatal line, extracted from the profile, is sub-divided into articulatory zones and superimposed, by Iterative Closest Point algorithm, onto reconstructed palatal traces in electromagnetic articulometric (EMA) data. Evaluations were carried out by comparing consonant targets elicited by EMA with the proposed method and by static palatography. The proposed method yields accurate results, as supported by palatography.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Alginates
  • Algorithms
  • Analog-Digital Conversion
  • Calcium Sulfate
  • Computer Systems
  • Dental Impression Materials
  • Dental Impression Technique
  • Female
  • Fiducial Markers
  • Glucuronic Acid
  • Hexuronic Acids
  • Humans
  • Image Processing, Computer-Assisted / methods*
  • Imaging, Three-Dimensional*
  • Male
  • Maxilla / anatomy & histology*
  • Maxilla / diagnostic imaging
  • Models, Dental*
  • Palate / anatomy & histology*
  • Palate / diagnostic imaging
  • Phonetics*
  • Radiography
  • Speech Articulation Tests / instrumentation
  • Speech Articulation Tests / methods*

Substances

  • Alginates
  • Dental Impression Materials
  • Hexuronic Acids
  • Glucuronic Acid
  • Calcium Sulfate