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METHOD OF DETECTING GLOBAL MOTION AND GLOBAL MOTION DETECTOR, AND DIGITAL IMAGE STABILIZATION (DIS) METHOD AND CIRCUIT INCLUDING THE SAME

  • US 20130322766A1
  • Filed: 03/14/2013
  • Published: 12/05/2013
  • Est. Priority Date: 05/30/2012
  • Status: Active Grant
First Claim
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1. A global motion detecting method comprising:

  • receiving a video sequence of input images;

    calculating local motion vectors, one for each image block of a current input image;

    grouping image blocks of the current input image into image block groups based on local motion vectors of the image block groups;

    calculating a group motion parameter of each image block group among the image block groups based on the local motion vectors of its respective image blocks; and

    determining a global motion parameter of the current input image based on a selected one of group motion parameters of the image block groups.

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