Pseudo-three-dimensional reconstruction of ultrasonic images of the tongue.
The purpose of the present investigation was to develop a method for the three-dimensional reconstruction of the surface of the tongue using serial ultrasonic images gathered during the production of the sustained fricative /s/. Using a phased linear array ultrasonic monitoring system, transducer position, subject position, and ultrasonic scan data were recorded simultaneously on composite video for off-line analysis. Reconstruction of a series of ultrasound images was completed using a microcomputer programmed to transform the ultrasonic image contours into three-dimensional space. Additional transformations converting the three-dimensional tongue contours into two dimensions for screen plotting were also developed. Results are discussed in light of previously reported models of the tongue surface.
Watkin
K L
KL
Faculty of Medicine, McGill University, Montreal, Quebec, Canada.
Rubin
J M
JM
D000328:Adult; D000465:Algorithms; D006801:Humans; D008297:Male; D008838:Microcomputers; D010700:Phonetics; D013060:Speech / Q000502:physiology*; D014059:Tongue / Q000033:anatomy & histology*; D014463:Ultrasonography; D014741:Video Recording