Video coding using hybrid intra prediction
US10694179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2016 |
| Grant date | Jun 23, 2020 |
| Priority date | — |
| Expiry date | Dec 22, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/61
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
One exemplary embodiment presents a method of decoding a group of image elements in a frame of an encoded video sequence. The method comprises determining an intra-prediction mode for the group of image elements, and providing a first prediction of the group of image elements according to the determined intra-prediction mode. The method further comprises determining a location identifier identifying a location of a decoded version of another group of image elements in a frame of the video sequence, and providing a second prediction of the group of image elements using the determined location identifier. Further, the method comprises identifying which subset of a plurality of subsets of intra-prediction modes contains the determined intra-prediction mode, wherein each subset corresponds to a first weighting and a second weighting assigned for all intra-prediction modes of that subset, and wherein different subsets are assigned different first weightings and different second weightings, and applying at least one of the first weighting assigned to the identified subset to the first prediction to generate a first weighted prediction and the second weighting assigned to the identified s…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.