发明名称 |
Moving picture coding method and moving picture decoding method |
摘要 |
A moving picture coding apparatus includes a co-located block information determination unit which determines which one of a forward reference block and a backward reference block will be a co-located block and further determines whether only the unidirectional motion vector of the motion vectors of the co-located block is to be stored in a colPic memory, a temporal motion vector predictor calculation unit which derives a candidate motion vector predictor in temporal motion vector predictor mode using the colPic information stored in the colPic memory; and an inter prediction control unit which determines to code a motion vector using a candidate motion vector predictor having least error from the motion vector derived by motion estimation among candidate motion vector predictors. |
申请公布号 |
US9532050(B2) |
申请公布日期 |
2016.12.27 |
申请号 |
US201213980450 |
申请日期 |
2012.01.24 |
申请人 |
SUN PATENT TRUST |
发明人 |
Sugio Toshiyasu;Nishi Takahiro;Shibahara Youji;Sasai Hisao |
分类号 |
H04N19/00;H04N19/583;H04N19/52;H04N19/51;H04N19/43 |
主分类号 |
H04N19/00 |
代理机构 |
Wenderoth, Lind & Ponack, L.L.P. |
代理人 |
Wenderoth, Lind & Ponack, L.L.P. |
主权项 |
1. A moving picture coding method of coding a current block included in a current picture using a reference motion vector of a reference block included in a reference picture different from the current picture, the reference block being co-located, in the reference picture, with the current block in the current picture, the moving picture coding method comprising:
determining a value of a predetermined flag which indicates whether or not reference block information is to be read from a memory, the reference block information including, among reference motion vectors of the reference block in a first prediction direction and a second prediction direction, the reference motion vector in the first prediction direction; reading, from the memory, the reference block information including the reference motion vector according to the value of the predetermined flag; coding a motion vector of the current block using the read reference block information; writing, to the memory, the reference block information including the motion vector of the current block according to the value of the predetermined flag; and adding the predetermined flag to a bitstream. |
地址 |
New York NY US |