Illumination compensation flag in frame rate up-conversion with template matching
US12212771B2 · kind B2 · utility
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4References
20Claims
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Key dates
| Filing date | Jan 23, 2023 |
| Grant date | Jan 28, 2025 |
| Priority date | — |
| Expiry date | Jan 23, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/577
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Inferring an illumination compensation flag during encoding or decoding of a video image signal using frame rate up conversion can save one bit and eliminate complexity. The illumination compensation flag can be derived from the corresponding flags of at least one bi-predictive or bi-directional prediction candidates. The flag can also be derived from some function of the flags from those candidates. Alternatively, several flags can be used for respective coding or decoding of blocks if there are more than one prediction candidate using illumination compensation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.