Features of intra block copy prediction mode for video and image coding and decoding
US11317113B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Feb 6, 2020 |
| Grant date | Apr 26, 2022 |
| Priority date | — |
| Expiry date | Sep 24, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/70
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Innovations in intra block copy (“BC”) prediction mode facilitate intra BC prediction that is more effective in terms of rate-distortion performance and/or computational efficiency of encoding and decoding. For example, some of the innovations provide ways to select block vector (“BV”) values more effectively. Other innovations provide ways to encode/decode BV values more efficiently. Still other innovations address how to perform in-loop deblock filtering when a block has intra BC prediction mode, or address how to perform intra BC prediction when constrained intra prediction is enabled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.