Directional intra-prediction coding
US10992939B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Oct 23, 2017 |
| Grant date | Apr 27, 2021 |
| Priority date | — |
| Expiry date | Jun 5, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/176
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Coding a current block using a directional intra-prediction mode is described. A filter to apply to reference pixels peripheral to the current block is determined using a prediction angle of the intra-prediction mode and a size of the current block. The reference pixels are filtered using the filter to generate modified reference pixels, and a prediction block is generated for the current block using the intra-prediction mode and the modified reference pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.