A two-stage multimodal speaker location-aware approach in pervasive computing
by Ruo-gui Xiao, Tong-qiang Guo
International Journal of Computer Applications in Technology (IJCAT), Vol. 38, No. 1/2/3, 2010

Abstract: Location-aware computing is important in pervasive computing and intelligent video surveillance. We propose a two-stage multimodal approach to locate the active speaker in intelligent environments. Firstly, human voice is captured as audio cue to find the approximate orientation of current speaker. Secondly, the colour feature of mouth region is extracted as visual cue to detect continuous mouth motion that identifies the active speaker. The speaking recognition is conducted by a well-trained Hidden Markov Model based on colour feature of mouth region during continuous motion. Experiments show that the proposed multimodal approach is effective for speaker localisation in intelligent indoor environments.

Online publication date: Fri, 16-Jul-2010

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