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Motion vector detecting method, record medium on which motion vector calculating program has been recorded, motion detecting apparatus, motion detecting method, picture encoding apparatus, picture encoding method, motion vector calculating method, record medium on which motion vector calculating program has been recorded

  • US 20020015513A1
  • Filed: 07/23/2001
  • Published: 02/07/2002
  • Est. Priority Date: 07/15/1998
  • Status: Abandoned Application
First Claim
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1. A motion vector calculating method, comprising the steps of:

  • (a) extracting a block from a reference picture corresponding to a block of a current picture to be processed, the size of the block of the reference picture being the same as the size of the block of the current picture, the origin of the block of the reference picture matching the origin of the block of the current picture;

    (b) while moving the block of the reference picture in a predetermined search area, obtaining a residual between the block of the current picture and the block of the reference picture;

    (c) detecting a block with the minimum residual from the reference picture so as to calculate a motion vector;

    (d) orthogonally transforming pixel data of a block of the reference picture and pixel data of a block of the current picture; and

    (e) obtaining a residual between orthogonally transformed data of the block of the reference picture and orthogonally transformed data of each block of the current picture.

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