发明名称 |
Methods and apparatus for using syntax for the coded<sub>—</sub>block<sub>—</sub>flag syntax element and the coded<sub>—</sub>block<sub>—</sub>pattern syntax element for the CAVLC 4:4:4 intra, high 4:4:4 intra, and high 4:4:4 predictive profiles in MPEG-4 AVC high level coding |
摘要 |
There are provided methods and apparatus for using syntax for the coded_block_flag syntax element for the CAVLC 4:4:4 Intra, High 4:4:4 Intra, and High 4:4:4 Predictive profiles in MPEG-4 AVC high level coding. An apparatus includes an encoder (100) for encoding image data into a resultant bitstream in accordance with an encoding profile that encodes a sample of the image data such that the sample includes two chrominance arrays and a luminance array. Each of the two chrominance arrays has a same height and a same width as the luminance array. The encoder (100) indicates a presence of at least one 8×8 block in the resultant bitstream using a syntax element. |
申请公布号 |
US9215456(B2) |
申请公布日期 |
2015.12.15 |
申请号 |
US201414299668 |
申请日期 |
2014.06.09 |
申请人 |
Thomson Licensing |
发明人 |
Yu Haoping |
分类号 |
H04N19/13;H04N19/00;H04N19/105;H04N19/176;H04N19/70;H04N19/103;H04N19/136;H04N19/186;H04N19/162;H04N19/91 |
主分类号 |
H04N19/13 |
代理机构 |
|
代理人 |
Shedd Robert D.;Kiel Paul P.;Lu Xiaoan |
主权项 |
1. A method, comprising:
decoding image data from a bitstream previously encoded in accordance with an encoding profile that encodes at least one 8×8 block of the image data such that the at least one 8×8 block includes two chrominance arrays and a luminance array, each of the two chrominance arrays having a same height and a same width as the luminance array, wherein said decoding comprises determining a presence of non-zero transform coefficients for the at least one 8×8 block in the resultant bitstream using a first syntax, which permits selectively disabling an application of context adaptive binary arithmetic coding (CABAC) to the at least one 8×8 block based on whether the non-zero transform coefficient is present in the at least one 8×8 block, and determining a presence of non-zero transform coefficients for each of the two chrominance arrays and the luminance array of the at least one 8×8 block in the resultant bitstream using additional syntax different from the first syntax. |
地址 |
Issy les-Moulineaux FR |