Method and apparatus for video coding on pixel-wise prediction
US8208545B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 27, 2006 |
| Grant date | Jun 26, 2012 |
| Priority date | — |
| Expiry date | Feb 4, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A pixel-based video encoding apparatus includes a block prediction unit, a residual image generation unit, a pixel prediction unit, and an entropy-coding unit. The block prediction unit performs temporal or spatial prediction between a reference image and a current image in order to generate a prediction block corresponding to a current block to be encoded. The residual image generation unit generates a residual image block composed of a residual signal corresponding to a difference between pixels of the prediction block and pixels of the current block. The pixel prediction unit determines whether to apply differential pulse coded modulation to each of pixels of the residual image block based on a rate distortion optimization value. The entropy-coding unit performs entropy-coding on the residual image block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.