| 发明名称 |
LOW COMPLEXITY LARGE TRANSFORM |
| 摘要 |
Methods of encoding a video stream in a video encoder and decoding an encoded video stream in a video decoder using a low complexity large transform are provided. An encoding method includes receiving an n×n residual block in a transform component of the video encoder, and transforming the n×n residual block using an n×n transform to generate an n×n transform coefficient block, wherein the n×n transform is based on (n/m*n/m) m×m Hadamard transforms and (m*m) (n/m)×(n/m) discrete cosign transforms, wherein m<n. A decoding method includes receiving an n×n transform coefficient block in an inverse transform component of the video decoder, and applying an n×n inverse transform to the n×n transform coefficient block to reconstruct an n×n residual block, wherein the n×n inverse transform is based on (n/m*n/m) m×m Hadamard transforms and (m*m) (n/m)×(n/m) inverse discrete cosign transforms, wherein m<n. |
| 申请公布号 |
US2015172718(A1) |
申请公布日期 |
2015.06.18 |
| 申请号 |
US201514630100 |
申请日期 |
2015.02.24 |
| 申请人 |
Texas Instruments Incorporated |
发明人 |
Budagavi Madhukar;Gupte Ajit |
| 分类号 |
H04N19/60;H04N19/176 |
主分类号 |
H04N19/60 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of encoding a video stream in a video encoder, the method comprising:
receiving an n×n residual block in a transform component of the video encoder; and transforming the n×n residual block using an n×n transform to generate an n×n transform coefficient block, wherein the n×n transform is based on (n/m*n/m) m×m Hadamard transforms and (m*m) (n/m)×(n/m) discrete cosign transforms (DCT), wherein m<n. |
| 地址 |
Dallas TX US |
