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- W2141775900 abstract "Gesture plays an important role for recognizing lecture activities in video content analysis. In this paper, we propose a real-time gesture detection algorithm by integrating cues from visual, speech and electronic slides. In contrast to the conventional ldquocomplete gesturerdquo recognition, we emphasize detection by the prediction from ldquoincomplete gesturerdquo. Specifically, intentional gestures are predicted by the modified hidden Markov model (HMM) which can recognize incomplete gestures before the whole gesture paths are observed. The multimodal correspondence between speech and gesture is exploited to increase the accuracy and responsiveness of gesture detection. In lecture presentation, this algorithm enables the on-the-fly editing of lecture slides by simulating appropriate camera motion to highlight the intention and flow of lecturing. We develop a real-time application, namely simulated smartboard, and demonstrate the feasibility of our prediction algorithm using hand gesture and laser pen with simple setup without involving expensive hardware." @default.
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- W2141775900 date "2008-08-01" @default.
- W2141775900 modified "2023-10-03" @default.
- W2141775900 title "Simulating a Smartboard by Real-Time Gesture Detection in Lecture Videos" @default.
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- W2141775900 doi "https://doi.org/10.1109/tmm.2008.922871" @default.
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