发明名称 |
METHOD AND APPARATUS FOR ENTROPY CODING VIDEO AND METHOD AND APPARATUS FOR ENTROPY DECODING VIDEO |
摘要 |
Provided are entropy decoding and encoding methods of a video. The entropy decoding method includes obtaining a transformation unit significant coefficient flag indicating whether a non-zero transformation coefficient exists in the transformation unit, from a bitstream, determining a context model for arithmetically 5 decoding the transformation unit significant coefficient flag, based on the transformation depth of the transformation unit and arithmetically decoding the transformation unit significant coefficient flag based on the determined context model. |
申请公布号 |
US2015195583(A1) |
申请公布日期 |
2015.07.09 |
申请号 |
US201514645951 |
申请日期 |
2015.03.12 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
KIM Il-koo |
分类号 |
H04N19/91;H04N19/60 |
主分类号 |
H04N19/91 |
代理机构 |
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代理人 |
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主权项 |
1. A decoding method of a video, the method comprising:
obtaining a split transformation flag used to determine a transformation unit for an inverse transformation process, from a bitstream; obtaining at least one transformation unit from a coding unit based on the split transformation flag; determining a context model for arithmetic decoding a transformation unit significant coefficient flag indicating whether a non-zero transformation coefficient exists in the transformation unit, based on a transformation depth of the transformation unit; and arithmetic decoding the transformation unit significant coefficient flag based on the determined context model, wherein, when the split transformation flag indicates a split for a current transformation depth, the transformation unit of the current transformation depth is split into four transformation units of a lower transformation depth. |
地址 |
Suwon-si KR |