Chroma enhancement filtering for high dynamic range video coding
US10972728B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2016 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Apr 15, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Chroma enhancement filtering may be used in high dynamic range (HDR) video. A video coding device may identify a characteristic within a picture of a video signal. The characteristic may include a spatial region, a color, a luminance, or an edge direction. The video coding device may determine a sample set that includes one or more samples associated with the characteristic. The video coding device may generate a cross-plane filter based on the characteristic and the sample set. The cross-plane filter may include a high pass filter. The video coding device may apply the cross-plane filter to a luma plane component of a sample in the sample set to determine an offset. The video coding device may add the offset to a reconstructed chroma plane component of the sample that corresponds to the luma plane component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.