IMAGE DECODING APPARATUS

IMAGE DECODING APPARATUS

  • CN 104,202,608 A
  • Filed: 01/18/2013
  • Published: 12/10/2014
  • Est. Priority Date: 01/18/2012
  • Status: Active Grant
First Claim
Patent Images

1. a video decoder, comprising:

  • Prediction piece generation unit, by current block is carried out to inter prediction, produces prediction piece,Wherein, the reference picture of described prediction piece generation unit based on described current block, and for picture order count (POC) value of the reference picture of the reference block of the inter prediction of described current block, determine whether the motion vector of described reference block to carry out convergent-divergent, and in the time determining the convergent-divergent of carrying out the motion vector to described reference block, poor the first value and the second value calculated of POC based between picture, the arithmetic shift right of carrying out 1 binary digit by the absolute value to described the first value calculates deviant, and calculate the inverse proportion value of described the first value by described deviant, and based on the described first inverse proportion value being worth and described the second value, calculate zoom factor, thus the motion vector of described reference block is carried out to convergent-divergent, wherein, described the first value is the picture that comprises described reference block, and the POC between the reference picture of described reference block institute reference is poor, described the second value is current picture, and the POC between the reference picture of described current block institute reference is poor.

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