Keywords
Pronunciation, external lip shape, speech sounds, tongue position
Abstract
In this research, an imaging system was built to work with a newly developed electronic device to help people produce sounds correctly. The system consists of two parts, the internal tongue contact pattern data collection and the external lip shape information analysis. The tongue position information was gathered using the palatometer, an innovative tongue contact pattern-tracking device invented by Dr. Samuel Fletcher. The lip shape information was collected by processing images taken from people articulating different sounds. We developed an efficient color image segmentation technique to extract lip contour points and form a closed curve for shape analysis. The geometry invariant turn function vs. normalized length was then calculated for the lip shape for each sound and compared against the turn function of the lips in a resting position to quantify their variations from this reference. Both internal (vocal tract) and external (visible lip shape) information was collected for each of the speech sounds. The lip shape information extracted from the images was then correlated with tongue position information. The test results showed that this imaging system can be used to quantify the lip shape information and its relations with the tongue position and is a potentially useful tool for speech pathology research.
Original Publication Citation
Lee, D.J., Bates, D., Dromey, C., Xu, X. & Antani, S. (2003). An imaging system correlating lip shapes and tongue contact patterns for speech pathology research. The 16th IEEE International Symposium on Computer-Based Medical Systems, New York, NY
BYU ScholarsArchive Citation
Dromey, Christopher; Bates, Daniel; Xu, Xiaoqian; Antani, Sameer; and Lee, D J., "An Imaging System Correlating Lip Shapes with Tongue Contact Patterns for Speech Pathology Research" (2003). Faculty Publications. 7298.
https://scholarsarchive.byu.edu/facpub/7298
Document Type
Conference Paper
Publication Date
2003
Publisher
IEEE
Language
English
College
David O. McKay School of Education
Department
Communication Disorders
Copyright Status
©2003 IEEE
Copyright Use Information
https://lib.byu.edu/about/copyright/