title: Co-registration of speech production datasets from electromagnetic articulography and real-time magnetic resonance imaging.
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.
authors.affiliation: Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089 jangwon@usc.edu.
authors.forename: Jangwon
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Computer Science, University of Southern California, Los Angeles, California 90089 lammert@usc.edu.
authors.forename: Adam C
authors.initials: AC
authors.lastname: Lammert
authors.affiliation: Department of Electrical Engineering, Indian Institute of Science, Bangalore, Karnataka, India prasantg@ee.iisc.ernet.in.
authors.forename: Prasanta Kumar
authors.initials: PK
authors.lastname: Ghosh
authors.affiliation: Department of Electrical Engineering, University of Southern California, Los Angeles, California 90089 shri@sipi.usc.edu.
authors.forename: Shrikanth S
authors.initials: SS
authors.lastname: Narayanan
mesh_terms: D000162:Acoustics; D059925:Anatomic Landmarks; D001696:Biomechanical Phenomena; D016208:Databases, Factual; D055590:Electromagnetic Phenomena; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D009055:Mouth / Q000033:anatomy & histology / Q000502:physiology*; D010614:Pharynx / Q000033:anatomy & histology / Q000502:physiology*; D015203:Reproducibility of Results; D013060:Speech; D013068:Speech Production Measurement; D013997:Time Factors