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Still Block Detection in a Video Sequence

  • US 20160345021A1
  • Filed: 05/20/2015
  • Published: 11/24/2016
  • Est. Priority Date: 05/20/2015
  • Status: Active Grant
First Claim
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1. A method for operating a video display system, the method comprising:

  • receiving a sequence of image frames;

    dividing each frame into a set of blocks as it is received;

    calculating a center of mass for each block in a first frame and saving the center of mass for all blocks in the first frame;

    calculating a center of mass for each block in a second frame; and

    detecting motion between the first frame and the second frame by comparing the center of mass of each block in the second frame to the center of mass of the corresponding block in the first frame, in which a still block is detected when a corresponding block in the first frame and the second frame have a same center of mass, and in which motion in a block is detected when a corresponding block in the first frame and the second frame have a different center of mass.

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