Methods of image processing for video encoder and decoder

Methods of image processing for video encoder and decoder

  • CN 1,968,420 B
  • Filed: 11/13/2006
  • Issued: 12/26/2012
  • Est. Priority Date: 11/14/2005
  • Status: Active Grant
First Claim
Patent Images

1. image treatment method that is applied to image decoding device and encoder, this method includes:

  • One first start address from one frame buffer stores a reference picture to this frame buffer;

    From second start address of this frame buffer, at least one block that stores a present picture is to override at least one subclass of this reference picture;

    When storing each block of this present picture, protect a plurality of blocks of this reference picture to lose with these a plurality of blocks of avoiding this reference picture;

    Execution is to a motion compensation procedure of a particular block of picture at present, by at least a portion with reference to protected these a plurality of blocks in this reference picture;

    AndAt least one block will this present picture overrides to this frame buffer;

    Change protected these a plurality of blocks in this reference picture;

    With at least one next block that stops to protect in this reference picture at least one expired block in protected these a plurality of blocks and begin to protect this reference picture;

    Wherein this expired block is meant block that in the subsequent displacements compensation program, no longer need use in this reference pictureWherein, Protect the step of these a plurality of blocks in this reference picture to comprise protected a plurality of blocks in this reference picture are stored in the displacement estimation flow process in the employed search area buffer, and protected all the other a plurality of blocks in this reference picture are stored in a cache buffer.

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