Multimodal Integration for Meeting Group Action Segmentation and Recognition

author: Marc Al Hames, TU Munich
published: Feb. 25, 2007,   recorded: June 2005,   views: 2998


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We address the problem of segmentation and recognition of sequences of multimodal human interactions in meetings. These interactions can be seen asa rough structure of a meeting, and can be used either as input for a meeting browser or as a first step towards a higher semantic analysis of the meeting. A common lexicon of multimodal group meeting actions, a shared meeting data set, and a common evaluation procedure enable us to compare the different approaches. We compare three different multimodal feature sets and four modelling infrastructures: a higher semantic feature approach, multi-layer HMMs, a multistream DBN, as well as a multi-stream mixed-state DBN for disturbed data.

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