Method and apparatus for line based vertical motion estimation and compensation

  • US 8,526,502 B2
  • Filed: 08/05/2008
  • Issued: 09/03/2013
  • Est. Priority Date: 09/10/2007
  • Status: Expired due to Fees
First Claim
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1. A method for providing line based vertical motion estimation and vertical motion compensation in consecutive frames of a motion picture, wherein the picture is divided in at least one region, the method comprising:

  • a first summing of luminance values for each horizontal line of the at least one region of a previous frame, wherein said first summing of luminance values results in a previous accumulation profile;

    a second summing of luminance values for each horizontal line of the at least one region of a current frame, wherein said second summing of luminance values results in a current accumulation profile; and

    deriving a vertical motion vector by use of the previous accumulation profile and of the current accumulation profile, wherein the deriving a vertical motion vector comprises;

    selecting summed luminance values of a number of horizontal lines of the a least one region of said current frame around a central line of the at least one region of said current frame in the current accumulation profile as a subprofile of the current accumulation profile, andmatching the subprofile of the current accumulation profile in the previous accumulation profile.

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