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Method and apparatus for extracting indexing information from digital video data

  • US 5,828,809 A
  • Filed: 10/01/1996
  • Issued: 10/27/1998
  • Est. Priority Date: 10/01/1996
  • Status: Expired due to Fees
First Claim
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1. A computer-implemented speech and video analysis system for creating an index to indicate locations of a first event occurring within audio-video data, said audio-video data containing audio data synchronized with video data to represent a plurality of events, said first event having at least one audio-feature and at least one video-feature indicative of said first event, comprising the steps of:

  • (a) providing a model speech database for storing speech models representative of said audio-feature;

    (b) providing a model video database for storing video models representative of said video-feature;

    (c) performing wordspotting to determine candidates by comparing said audio data with said stored speech models, said candidates indicating positions of said audio-feature within said audio data;

    (d) establishing predetermined ranges around each of said candidates;

    (e) segmenting into shots those portions of said video data which are located within said ranges;

    (f) analyzing said segmented video data to determine video-locations based on a comparison between said segmented video data and said stored video models, said video-locations indicating positions of said video-feature within said segmented video data; and

    (g) generating an index to indicate locations of said first event based on said video-locations.

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