People 

Objective

A structured representation of the videos needs to be derived for search and retrieval. At the low level, we have simple visual cues such as color and texture. At the object level, we may have more annotations (such as the instructor's name). New description schemes are necessary to describe the audio-visual content. Research issues include a tighter integration of audio (especially speech recognition) and visual information (especially face recognition, tracking). For course material, it will be of interest to create ``concept spaces'' tailored to the individual course content, to which the audio-visual data is cross linked so that the students can browse through and randomly access the content based on such concepts.

Publications

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Ching-Wei  Chen's master thesis: ClassAid: An Automated Lecture Capture and Archival System, 2001