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Motion detecting apparatus, motion detecting method, and storage medium storing motion detecting program for avoiding incorrect detection

  • US 6,512,537 B1
  • Filed: 06/01/1999
  • Issued: 01/28/2003
  • Est. Priority Date: 06/03/1998
  • Status: Expired due to Term
First Claim
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1. A motion detecting apparatus for processing coded images with motion vectors of a target area to determine movement of an object in the target area comprising:

  • a first judging unit for (a) computing, for each of a plurality of blocks, a scale of complexity of a pattern of the block, and (b) judging the block as a possible motion block if the scale of complexity is larger than a first threshold value and a magnitude of a motion vector representing the block is larger than a second threshold value; and

    a second judging unit for further judging the blocks that meet or exceed the threshold values of the first judging unit as a motion block when a direction and magnitude of the block approximates the direction and magnitude of a predetermined number of surrounding blocks wherein the determination of a motion block is indicative of a moving object.

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