Title :
Improvement in tracking of articulatory movements with the X-ray microbeam system
Author :
Xue, Qiuzhen ; Nadler, Robert ; Abbs, James ; Tompkins, Willis
Author_Institution :
Dept. of Electr. & Comput. Eng., Wisconsin Univ., Madison, WI, USA
Abstract :
The X-ray microbeam system at the University of Wisconsin is an advanced national facility for speech physiology research. The system allows for the simultaneous observation of lip, tongue, jaw and soft palate movements by tracking the position of small gold spheres attached to these structures. Currently, tracking consists of processing small raster scan images of the individual pellets and has been divided into two modules: pellet recognition and prediction. More robust pattern recognition methods are described here, and an adaptive filter model is used for the prediction problem.<>
Keywords :
biological techniques and instruments; biomechanics; speech; X-ray microbeam system; adaptive filter model; articulatory movements tracking; jaw; lip; prediction problem; small Au spheres; small raster scan images; soft palate movements; speech physiology research; tongue;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.94673
