| Original document(52 pages) 中文版 |
The picture coding method according to the present invention is a picture coding method for coding a picture on a block-by-block basis through orthogonal transformation and quantization, and coding a quantization matrix that is used to derive quantization steps for frequencies of orthogonal transformation coefficients, the method comprising: calculating a difference value between each of frequency components included in the quantization matrix and a predetermined value corresponding to said each of the frequency components; and coding the difference value into a variable length code, wherein a code length of the variable length code is shorter as the difference value is smaller, or equal to a code length of a neighboring difference value of said difference value. |
Application Number
申请号 |
200580002801 |
Application Date
申请日 |
2005.01.19 |
| Title 名称 |
Picture coding method, picture decoding method, picture coding apparatus, picture decoding apparatus, and program thereof |
Publication Number
公开号 |
1910594 |
Publication Date
公开日 |
2007.02.07 |
| Approval Pub. Date |
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Granted Pub. Date |
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| International Classification 分类号 |
G06K9/36;G06K9/46;H04N7/12;H04N11/02;H04N11/04 |
Applicant(s) Name
申请人 |
Matsushita Electric Ind Co., Ltd. |
| Address 地址 |
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| Inventor(s) Name 发明人 |
Kadono Shinya;Kashiwagi Yoshiichiro;Lu Jiuhuai;Lim Chong Soon;Tao Chen |
| Attorney & Agent 代理人 |
wang wei |
| More information 更 多 信 息 |
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