Direct estimation of articulatory kinematics from real-time magnetic resonance image sequences

Michael Proctor*, Adam Lammert, Athanasios Katsamanis, Louis Goldstein, Christina Hagedorn, Shrikanth Narayanan

*Corresponding author for this work

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

26 Citations (Scopus)

Abstract

A method of rapid, automatic extraction of consonantal articulatory trajectories from real-time magnetic resonance image sequences is described. Constriction location targets are estimated by identifying regions of maximally-dynamic correlated pixel activity along the palate, the alveolar ridge, and at the lips. Tissue movement into and out of the constriction location is estimated by calculating the change in mean pixel intensity in a circle located at the center of the region of interest. Closure and release gesture timings are estimated from landmarks in the velocity profile derived from the smoothed intensity function. We demonstrate the utility of the technique in the analysis of Italian intervocalic consonant production.

Original languageEnglish
Title of host publicationInterspeech 2011
Subtitle of host publicationSpeech science and technology for real life
Place of PublicationBaixas, France
PublisherInternational Speech Communication Association (ISCA)
Pages281-284
Number of pages4
Publication statusPublished - 2011
Externally publishedYes
Event12th Annual Conference of the International-Speech-Communication-Association 2011 (INTERSPEECH 2011) - Florence, Italy
Duration: 27 Aug 201131 Aug 2011

Conference

Conference12th Annual Conference of the International-Speech-Communication-Association 2011 (INTERSPEECH 2011)
CountryItaly
CityFlorence
Period27/08/1131/08/11

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    Proctor, M., Lammert, A., Katsamanis, A., Goldstein, L., Hagedorn, C., & Narayanan, S. (2011). Direct estimation of articulatory kinematics from real-time magnetic resonance image sequences. In Interspeech 2011: Speech science and technology for real life (pp. 281-284). Baixas, France: International Speech Communication Association (ISCA). Proceedings of the Annual Conference of the International Speech Communication Association, INTERSPEECH