Encoding device and method, decoding device and method, and transmission system
US8320693B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2006 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Apr 1, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An encoding device includes a filter unit that performs a filtering processing as to image data, for a line block including image data of a number of lines for generating coefficient data of one line of a sub-band of at least a lowest band component. The filter unit generates a plurality of sub-bands made up of coefficient data broken down by frequency band. The encoding device also includes a storage unit that stores coefficient data generated by the filter unit, for the line block. The encoding device further includes a coefficient rearranging unit that rearranges the coefficient data, for each line block, in an order in which a synthesizing processing, for generating image data by synthesizing the coefficient data of a plurality of sub-bands which have been divided into frequency bands, is to be executed. An encoding unit encodes the coefficient data rearranged by the coefficient rearranging unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.