Gao, H.Lim, M.Lin, E.Green, R.2008-08-112008-08-112007Gao, H., Lim, M., Lin, E., Green, R. (2007) Marker based Facial Tracking Application in Communication Disorder Research. University of Waikato, Hamilton, New Zealand: Image and Vision Computing New Zealand 2007 (IVCNZ 2007), 5-7 Dec 2007. Proceedings of Image and Vision Computing New Zealand (IVCNZ 2007), 244-247.http://hdl.handle.net/10092/754An infrared reflective marker tracking system is introduced in this paper. This system is designed to measure facial muscle movement for communication disorder research. The extent and timing of jaw opening and lip spreading are monitored while subjects are performing a variety of speech production tasks with different speech or voice facilitating strategies. This facial tracking device is used in combination with acoustic and electroglottographic recordings to allow for an investigation of the oral-laryngeal coordination. A calibrator with known geometry properties is used to compensate for errors resulted from a subject’s head movement and convert pixel distance to real distance in millimeters.encommunication disorderinfrared reflective markermarker based trackingConference Contributions - PublishedFields of Research::280000 Information, Computing and Communication Sciences::280100 Information Systems::280104 Computer-human interactionFields of Research::280000 Information, Computing and Communication Sciences::280300 Computer Software::280302 Software engineeringFields of Research::380000 Behavioural and Cognitive Sciences::380200 Linguistics::380204 Laboratory phonetics and speech science