基本信息:
- 专利标题： 编码方法、解码方法、编码装置及解码装置
- 专利标题（英）：Encoding method, decoding method, encoding device and decoding device
- 申请号：CN201080034298.8 申请日：2010-08-06
- 公开(公告)号：CN102474271A 公开(公告)日：2012-05-23
- 发明人： 柴原阳司 , 西孝启 , 笹井寿郎 , 谷川京子 , M·纳罗施克 , V·德吕容 , S·维特曼
- 申请人： 松下电器产业株式会社
- 申请人地址： 日本大阪府
- 专利权人： 松下电器产业株式会社
- 当前专利权人： 松下电器产业株式会社
- 当前专利权人地址： 日本大阪府
- 代理机构： 永新专利商标代理有限公司
- 代理人： 徐殿军
- 优先权： 2009-183791 2009.08.06 JP; 2009-192627 2009.08.21 JP; 2009-192618 2009.08.21 JP; 61/309,090 2010.03.01 US; 61/329,406 2010.04.29 US; 61/345,703 2010.05.18 US; 61/364,580 2010.07.15 US
- 国际申请： PCT/JP2010/004953 2010.08.06
- 国际公布： WO2011/016249 JA 2011.02.10
- 进入国家日期： 2012-02-02
- 主分类号： H03M7/30
- IPC分类号： H03M7/30 ; H04N7/30 ; H04N7/32
Disclosed is an encoding method including a transform step (S110a) for transforming an input signal; a quantization step (S120) for scanning coefficient values configuring the transform output signal, and quantizing thereof; and an entropy encoding step (S130) for entropy encoding the quantized coefficients. The transform step (S110a) includes a first transform step (S112) for generating the first transform output signal by way of performing a first transform on the input signal using a first transform coefficient; and a second transform step (S116a) for generating a second transform output signal by way of performing a second transform using a second transform coefficient on a first partial signal which is a portion of the first transform output signal, and outputting a transform output signal which includes the generated second transform output signal and a second partial signal which is the portion of the first transform output signal excluding the first partial signal. In at least one of scanning, quantization, or entropy encoding, different processing is performed on signals corresponding to each of the second transform output signal and the second partial signal.
IPC结构图谱:
| H | 电学 |
| --H03 | 基本电子电路 |
| ----H03M | 一般编码、译码或代码转换 |
| ------H03M7/00 | 把用给定序列的数字或给定数目的数字来表示信息的码，转换到用不同序列的数字或不同数目的数字来表示相同信息的码 |
| --------H03M7/30 | .压缩；扩展；消除不需要的数据，例如减少冗余 |