发明名称 |
Method of deriving motion information |
摘要 |
A method is provided of decoding video data using a merge mode. A merge list is constructed using available spatial and temporal merge candidates. A merge candidate on the merge list corresponding to a merge index is determined as motion information of a current prediction unit. A predicted block of the current prediction unit is generated using the motion information. A transformed block is generated by inverse-quantizing a block of quantized coefficients using a quantization parameter. A residual block is generated by inverse-transforming the transformed block. A reconstructed block is generated using the predicted block and the residual block. |
申请公布号 |
US9521414(B2) |
申请公布日期 |
2016.12.13 |
申请号 |
US201615049965 |
申请日期 |
2016.02.22 |
申请人 |
INFOBRIDGE PTE. LTD. |
发明人 |
Oh Soo Mi;Yang Moonock |
分类号 |
H04N19/124;H04N19/52;H04N19/176;H04N19/593;H04N19/513;H04N19/119;H04N19/159;H04N19/51;H04N19/105;H04N19/503 |
主分类号 |
H04N19/124 |
代理机构 |
Birch, Stewart, Kolasch & Birch, LLP |
代理人 |
Birch, Stewart, Kolasch & Birch, LLP |
主权项 |
1. A method of decoding video data using a merge mode, the method comprising:
constructing a merge list using available spatial and temporal merge candidates; determining a merge candidate on the merge list corresponding to a merge index as motion information of a current prediction unit; generating a predicted block of the current prediction unit using the motion information; generating a transformed block by inverse-quantizing a block of quantized coefficients using a quantization parameter; generating a residual block by inverse-transforming the transformed block; and generating a reconstructed block using the predicted block and the residual block, wherein the merge list contains a predetermined number of merge candidates among the available spatial and temporal merge candidates, wherein the quantization parameter is derived per a quantization unit, wherein a minimum size of the quantization unit is adjusted per picture, wherein the quantization parameter is derived using a differential quantization parameter and a quantization parameter predictor, wherein if two or more quantization parameters are available among a left quantization parameter, an above quantization parameter and a previous quantization parameter of a current coding unit, the quantization parameter predictor is generated using two available quantization parameters determined according to a predetermined order among the left quantization parameter, the above quantization parameter and the previous quantization parameter, wherein if a left and an above quantization parameter of a current coding unit are not available, a previous quantization parameter is set as the quantization parameter predictor, wherein the differential quantization parameter is restored using a bin string indicating an absolute value of the differential quantization parameter and a bin indicating a sign of the differential quantization parameter, and wherein the bin string and the bin are derived from a picture parameter set. |
地址 |
Singapore SG |