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Method and apparatus for detecting a point of change in a moving image

  • US 6,157,744 A
  • Filed: 02/21/1996
  • Issued: 12/05/2000
  • Est. Priority Date: 02/21/1995
  • Status: Expired due to Term
First Claim
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1. A method of detecting a change between video shots from a video including a plurality of succeeding frame images, said method comprising the steps of:

  • inputting said video into a processing device;

    obtaining a feature quantity of each frame of the inputted video;

    determining a first correlation coefficient which is a difference between a feature quantity of a current frame image and a feature quantity of a first preceding frame image immediately preceding said current frame image;

    determining a second correlation coefficient which is a difference between the feature quantity of said current frame image and a feature quantity of a second preceding frame at least two frame image preceding said current frame image; and

    indicating a change between video shots a time when the first correlation coefficient and the second correlation coefficient are out of predetermined allowable ranges;

    wherein the number of frame images preceding said current frame image for said second preceding frame image is successively increased so as to distinguish a disturbance lasting an arbitrary number of frame images from a change between video shots.

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