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This paper presents a novel multimodal system to track the participants and identify the active speaker in the smart meeting room. Indoor localization system, Cicada, is used to obtain the location and identity information of the participants. Cicada, developed by our research group, can provide much higher localization precision than most visual tracking systems available. Four eight-element microphone...
The wireless sensor network based localization system - Cicada is designed to support the location- awareness in indoor environment. The system is based on TDOA (time difference of arrival) between radio frequency and ultrasonic to measure the distances, uses the SWF(slide window filter) and least square fitting for the rough distance correction, adopts the UKF (unscented Kalman filter) to ultimately...
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