DocumentCode :
1839527
Title :
Tracking tongue movements for environment control using particle swarm optimization
Author :
Wang, Jia ; Huo, Xueliang ; Ghovanloo, Maysam
Author_Institution :
Electr. & Comput. Eng. Dept., North Carolina State Univ., Raleigh, NC
fYear :
2008
fDate :
18-21 May 2008
Firstpage :
1982
Lastpage :
1985
Abstract :
We have developed a magnetic localization technique to accurately track 3-D tongue movements in the oral cavity and use this information to discern user´s intention. This method will be used in an unobtrusive, wireless magnetic tongue-computer interface, know as tongue drive, to provide people with severe disabilities with computer access and proportional control over their environments. A small permanent magnet secured on the tongue by implantation, piercing, or adhesives, is utilized as a tracer. The magnetic field variations due to tongue movements are detected by three 3-D magneto-inductive sensor modules and wirelessly transmitted to a computer to be translated into user-defined commands. The tracer is modeled as a magnetic dipole, which position and orientation are estimated using particle swarm optimization (PSO) algorithm. Simulation and experimental results show that using this method we can localize the tracer inside the mouth cavity every 0.2 s with 1 mm and 2deg resolution in position and orientation, respectively.
Keywords :
biocontrol; biological organs; biomagnetism; biomechanics; handicapped aids; man-machine systems; particle swarm optimisation; proportional control; tracking; user interfaces; 3-D magneto-inductive sensor modules; 3-D tongue movements tracking; PSO algorithm; computer access; disable people; environment control; magnetic dipole; magnetic localization technique; mouth oral cavity; particle swarm optimization; permanent magnet; proportional control; tongue drive system; user-defined commands; wireless magnetic tongue-computer interface; Communication system security; Computational modeling; Computer interfaces; Drives; Magnetic sensors; Particle swarm optimization; Particle tracking; Permanent magnets; Proportional control; Tongue;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Circuits and Systems, 2008. ISCAS 2008. IEEE International Symposium on
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-1683-7
Electronic_ISBN :
978-1-4244-1684-4
Type :
conf
DOI :
10.1109/ISCAS.2008.4541834
Filename :
4541834
Link To Document :
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