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Method for detecting a moving object in motion video and apparatus therefor

  • US 6,876,701 B1
  • Filed: 09/01/2000
  • Issued: 04/05/2005
  • Est. Priority Date: 09/02/1999
  • Status: Expired due to Fees
First Claim
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1. A video moving object detecting method comprising the steps of:

  • a. determining whether a video signal in a predetermined unit area represents a background area or a non-background area from a reconstructed video signal acquired by decoding encoded data obtained by compression-encoding a motion video signal, including determining whether an interest macro block used as a unit area is a background macro block corresponding to the background area or a non-background macro block corresponding to the non-background area every frame; and

    b. detecting adjacent unit areas representing the non-background area using a determination result of the step a to determine the adjacent unit areas as an area of a moving object, including detecting adjacent interest macro blocks representing the non-background macro block as the area of the moving object;

    wherein the step a includes determining a background or a non-background every macro block in the frame on the basis of decoded mode information, a first cross correlation value between a local decoded picture signal and a reference picture signal of a frame preceding by one frame, and a second cross correlation value between the local decoded picture signal and a background picture signal preceding by one frame.

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