发明名称 |
Variable length coding method and variable length decoding method |
摘要 |
A variable length coding method is provided for coding coefficients in each block which are obtained by performing frequency transformation on picture data of a moving picture per block having a predetermined size, and includes: a coefficient scanning step of scanning the coefficients in the block in a predetermined order; and a coding step of coding the coefficients scanned in the coefficient scanning step into variable length codes in a predetermined order by switching a plurality of tables to be used for coding. Here, a direction of switching between the tables may be one-directional. Also, the coding may be non-arithmetic coding.
|
申请公布号 |
US2008063083(A1) |
申请公布日期 |
2008.03.13 |
申请号 |
US20070907777 |
申请日期 |
2007.10.17 |
申请人 |
KONDO SATOSHI;KADONO SHINYA;HAGAI MAKOTO;ABE KIYOFUMI |
发明人 |
KONDO SATOSHI;KADONO SHINYA;HAGAI MAKOTO;ABE KIYOFUMI |
分类号 |
H04B1/66;H03M7/40;H03M7/42;H04N7/26;H04N7/30;H04N7/50 |
主分类号 |
H04B1/66 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|