| 发明名称 | Sub-bitstream extraction | ||
| 摘要 | A sub-bitstream extraction process is applicable to a bitstream of multiple access units comprising a respective encoded picture of a video sequence. An access unit among the bitstream is identified and discarded. In addition, all access units in the bitstream that can depend on this access unit are discarded to form a sub-bitstream. The sub-bitstream will not have any access unit that can depend on the identified access units and will be a specification-conforming bitstream. | ||
| 申请公布号 | US9414085(B2) | 申请公布日期 | 2016.08.09 |
| 申请号 | US201214372981 | 申请日期 | 2012.11.29 |
| 申请人 | Telefonaktiebolaget LM Ericsson (publ) | 发明人 | Samuelsson Jonatan;Sjöberg Rickard |
| 分类号 | H04N19/00;H04N19/46;H04N21/2343;H04N21/4402;H04N21/647;H04N21/845;H04N19/70;H04N19/31;H04N19/40;H04N19/169;H04N19/30;H04N19/132 | 主分类号 | H04N19/00 |
| 代理机构 | Myers Bigel & Sibley, P.A. | 代理人 | Myers Bigel & Sibley, P.A. |
| 主权项 | 1. A sub-bitstream extraction method applicable to a bitstream of multiple access units comprising a respective encoded picture of a video sequence, said method comprising: identifying an access unit among said bitstream comprising said multiple access units; and discarding said access unit and all access units in said bitstream that can depend on said access unit to form a sub-bitstream having no access unit that can depend on said access unit, wherein each picture of said video sequence has a respective layer identifier identifying a respective layer, discarding said access unit comprises discarding said access unit and all access units in said bitstream having layer identifier higher than or equal to said layer identifier of said access unit and following said access unit according to a decoding order of said bitstream but preceding, according to a defined order of said bitstream, any next layer switching point having a layer identifier lower than or equal to said layer identifier of said access unit. | ||
| 地址 | Stockholm SE | ||