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Method and apparatus for detecting image movement

  • US 7,796,120 B2
  • Filed: 08/04/2005
  • Issued: 09/14/2010
  • Est. Priority Date: 12/27/2004
  • Status: Active Grant
First Claim
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1. A method of detecting image movement, comprising the following steps:

  • (A) accessing a reference frame, and capturing a reference window from the reference frame;

    (B) accessing a sampling frame, and searching a sampling window matching the reference window from the sampling frame;

    (C) when the reference window moves and has not reached a margin of the reference frame, and the sampling window stops moving in the sample frame and has not reached a margin of the sampling frame, capturing a new window from the reference frame to replace the reference window;

    (D) calculating a moving vector based on relative locations of the reference window and the sampling window;

    (E) when the sampling window has reached the margin of the sampling frame, replacing the reference frame with the sampling frame, and capturing the reference window from the reference frame; and

    (F) repeating the step (B).

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