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Exploring the content of a video is typically inefficient due to the linear streamed nature of its media and the lack of interactivity. Video may be seen as a combination of a set of features, the visual track, the audio track and transcription of the spoken words, etc. These features may be viewed as a set of temporally bounded parallel modalities. It is our contention that together these modalities...
Real-time detection of a speaker and speaker's location is a challenging task, which is usually addressed by processing acoustic/visual information. However, it is a well-known fact that when a person speaks, the lip and head movements can also be used to detect the speaker and location. This paper proposes a speaker detection system using visual prosody information (e.g. head and lip movements) in...
This study focuses on prosodic and gestural features that contribute to the positive judgement of public oral presentations. The general hypothesis is that certain prosodic characteristics, such as high pitch variation and perceived loudness, together with the production of natural hand gestures, influence the audience's perception of the speaker as a good presenter. Being able to identify features...
As more and more audio-visual content such as talks, lectures and presentations is made available online, it becomes increasingly difficult for prospective viewers of such content to assess which videos they might find interesting or engaging. Automatic classification of content as engaging versus non-engaging might help viewers cope with this situation, and presenters gauge their presentation skills...
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