发明名称 |
Image coding and decoding methods, image coding and decoding apparatuses, and recording media for image coding and decoding programs |
摘要 |
In an image coding method of the present invention, after a process such as DCT is performed to digital image data, quantization process is performed, and then, to resultant quantized transform coefficients, variable length coding process is performed with reference to a variable length code table showing how variable length codes are allocated, and in a comparison process between an event derived from the quantized transform coefficients and a reference event included in the variable length code table, transformation process is performed to increase a possibility of performing variable length coding with satisfactory coding efficiency.
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申请公布号 |
US2001046328(A1) |
申请公布日期 |
2001.11.29 |
申请号 |
US20010906832 |
申请日期 |
2001.07.18 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
BOON CHOONG SENG |
分类号 |
H04N7/26;G06T9/00;H03M7/30;H03M7/40;H03M7/42;H03M7/46;H03M7/48;H04N1/41;H04N1/419;H04N7/24;H04N7/30;H04N7/50;(IPC1-7):G06K9/36;G06K9/46 |
主分类号 |
H04N7/26 |
代理机构 |
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地址 |
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