Edge directed de-interlacing method, device and system

Edge directed de-interlacing method, device and system

  • CN 101,005,599 B
  • Filed: 11/07/2006
  • Issued: 07/23/2014
  • Est. Priority Date: 11/08/2005
  • Status: Active Grant
First Claim
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1. for a method for edge directed de-interlacing, comprising:

  • Identify optimum interpolation direction by the mark of determining at least in part multiple candidate direction, the mark of wherein determining candidate direction comprises;

    for each candidate direction, and the pixel value being relatively associated with the first data window at least in part and the pixel value being associated with the second data window;

    AndAlong optimum interpolation direction interpolation with obtain interpolated pixel values,Wherein, in the time that the inputting video data to staggered carries out deinterleave, the mark of 2W+1 candidate direction is by producing according to the fractional value S of each definite candidate direction of the relation of absolute difference sum sad value below;

    S=SAD(w1,

    w2)+SAD(w3,

    w4)+2[SAD(w5,

    w6)],

    Wherein, W is horizontal range value, w1 representative is at first data window in front court of working as of the staggered inputting video data centered by the terminal edge pixel of estimative candidate direction, w2 representative is at the second data window in front court of working as centered by other terminal edge pixel of candidate direction, the 3rd relevant data window of terminal edge pixel of the estimative candidate direction in the present frame of w3 representative and the video data of part deinterleave, w4 represents the 4th data window centered by current just processed pixel, w5 representative the 5th data window centered by the terminal edge pixel of the estimative candidate direction in the present frame of the video data of part deinterleave and in the lastrow of being expert at described terminal edge pixel, w6 represents the 6th data window in the lastrow of being expert at centered by the pixel to want interpolation and at the pixel of wanted interpolation,Wherein, in w1 and w2, w3 and w4, w5 and w6, every pair of window has identical direction in space and comprises identical pixel quantity.

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