Image encoding apparatus and method, image decoding apparatus and method, and program
US8625909B2 · kind B2 · utility
2Cited by
4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Feb 2, 2011 |
| Grant date | Jan 7, 2014 |
| Priority date | — |
| Expiry date | Oct 19, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/647
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image encoding apparatus includes a band division unit configured to perform frequency band division for generating coefficient data of each of a plurality of frequency bands from image data of a block unit and, with regard to the frequency band division, to perform frequency band division of the coefficient data of the low-band component after rearranging a spatial position with respect to coefficient data of a low-band component obtained by frequency band division, and an encoding unit configured to perform encoding of the coefficient data of each of the plurality of frequency bands.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.