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Moving object detection apparatus

  • US 5,721,692 A
  • Filed: 02/15/1996
  • Issued: 02/24/1998
  • Est. Priority Date: 02/17/1995
  • Status: Expired due to Term
First Claim
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1. A moving object detection apparatus comprising:

  • means for inputting a movie;

    means for detecting a moving object from the inputted movie; and

    means for outputting the detected result,wherein said moving object detection means comprises background judgment means including;

    means for setting a window area of interest for the background with respect to the inputted movie;

    means for calculating the correlation between the data of the window area of interest in a predetermined frame and the data of the window area of interest in each frame;

    means for judging the interval which is predicted to belong to the background because of absence of the moving object from the pattern of at least one of the calculated correlated value; and

    means for deciding the interval for which a moving object is present from the interval which is predicted to belong to the judged background;

    wherein said means for judging the interval to be predicted to belong to the background judges whether the background change is caused by the illuminance change or the structure change, from the pattern of at least one of the correlated values.

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