Motion image coding apparatus for performing hierarchical coding
US6546142B2 · kind B2 · utility
4Cited by
5References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 31, 2001 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Jul 31, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image coding apparatus inputs pixel data of a part image of high resolution. An upper layer coding portion (101), a second shape data generating portion (102), and a second shape data coding portion (103) perform coding of shape data and pixel data in the upper layer. A down sampling portion (104) generates pixel data of low resolution. A lower layer coding portion (105), a first shape data generating portion (106), and a first shape data coding portion (107) code shape data and pixel data in the lower layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.