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Story segmentation and detection of commercials in broadcast news video

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2 Author(s)
Hauptmann, A.G. ; Dept. of Comput. Sci., Carnegie Mellon Univ., Pittsburgh, PA, USA ; Witbrock, M.J.

The Informedia Digital Library Project allows full content indexing and retrieval of text, audio and video material. Segmentation is an integral process in the Informedia digital video library. The success of the Informedia project hinges on two critical assumptions: that we can extract sufficiently accurate speech recognition transcripts from the broadcast audio and that we can segment the broadcast into video paragraphs, or stories, that are useful for information retrieval. In previous papers we have shown that speech recognition is sufficient for information retrieval of pre-segmented video news stories. We now address the issue of segmentation and demonstrate that a fully automatic system can extract story boundaries using available audio, video and closed-captioning cues. The story segmentation step for the Informedia Digital Video Library splits full-length news broadcasts into individual news stories. During this phase the system also labels commercials as separate “stories”. We explain how the Informedia system takes advantage of the closed captioning frequently broadcast with the news, how it extracts timing information by aligning the closed-captions with the result of the speech recognition, and how the system integrates closed-caption cues with the results of image and audio processing

Published in:

Research and Technology Advances in Digital Libraries, 1998. ADL 98. Proceedings. IEEE International Forum on

Date of Conference:

22-24 Apr 1998