Cross-component filtering on block-level reconstruction
US12278977B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 2022 |
| Grant date | Apr 15, 2025 |
| Priority date | — |
| Expiry date | Jan 13, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus includes processing circuitry that decodes prediction information of a current block in a current picture that is a part of a coded video sequence. The processing circuitry determines whether a cross component filtering (CCF) process is enabled for the current block based on one of a partitioning scheme, a prediction mode, a block width, a block height, transform coefficients, and quantization parameters. The processing circuitry generates filtered reconstruction samples of the current block by applying the CCF process on at least one of predicted samples, residual values, or reconstruction samples of the current block based on the CCF process being enabled. The filtered reconstruction samples of the current block are used for reconstruction of a subsequent block. The processing circuitry reconstructs the current block and the subsequent block based on the filtered reconstruction samples of the current block.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.