发明名称 |
VARIABLE LENGTH CODING METHOD AND VARIABLE LENGTH DECODING METHOD |
摘要 |
The present invention is a variable length coding method 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 comprises: 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. <IMAGE> |
申请公布号 |
CA2625292(A1) |
申请公布日期 |
2003.10.30 |
申请号 |
CA20032625292 |
申请日期 |
2003.04.16 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KONDO, SATOSHI;ABE, KIYOFUMI;HAGAI, MAKOTO;KADONO, SHINYA |
分类号 |
H04N19/13;G06T9/00;H03M7/40;H04H20/57;H04H60/91;H04N19/136;H04N19/176;H04N19/189;H04N19/196;H04N19/423;H04N19/60;H04N19/91;H04Q7/32 |
主分类号 |
H04N19/13 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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