Method for coding and an apparatus based on a DC prediction value
US9280835B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2012 |
| Grant date | Mar 8, 2016 |
| Priority date | — |
| Expiry date | Apr 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disclosure relates to encoding and decoding image information. The encoding comprises receiving a block of pixels; determining a set of potential reference samples for the block of pixels; selecting a subset of the set of potential reference samples to be used as reference samples for the block of pixels; and using the selected reference samples to determine a DC prediction value for the block of pixels. A prediction error is determined for a pixel in the block of pixels on the basis of the DC prediction value. The decoding comprises receiving an encoded block of pixels; determining reference samples for the encoded block of pixels; and using the determined reference samples to define a DC prediction value for the block of pixels. A prediction error is received for a pixel of the encoded block of pixels. The pixel value is reconstructed on the basis of the DC prediction value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.