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Adaptive key frame extraction from video data

  • US 20070061727A1
  • Filed: 09/15/2005
  • Published: 03/15/2007
  • Est. Priority Date: 09/15/2005
  • Status: Abandoned Application
First Claim
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1. A method comprising:

  • determining difference frames between successive frames in a video data sequence;

    determining an energy value of each difference frame;

    determining a cumulative energy mean for each difference frame and a predetermined number of previous difference frames;

    updating the energy value of each difference frame by removing the cumulative energy mean from the energy value of each difference frame; and

    identifying a temporal change in the energy value of each difference frame to extract key frames from the video data sequence.

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