Image processing device and method
US9648316B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2013 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Sep 28, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image processing device and method that enable suppression of a reduction in coding efficiency. The image processing device encodes an image to generate encoded data, and set, as syntax of the generated encoded data, syntax whose semantics is set so that a default quantization matrix having the same size as a block size that is a unit of processing in which quantization is performed is referred to when in a copy mode in which a quantization matrix is copied, quantization matrix reference data identifying a reference destination of the quantization matrix matches quantization matrix identification data identifying the quantization matrix. The device and method can be applied to an image processing device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.