Cross-plane filtering for chroma signal enhancement in video coding
US10397616B2 · kind B2 · utility
4Cited by
5References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2013 |
| Grant date | Aug 27, 2019 |
| Priority date | — |
| Expiry date | Jul 24, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/30
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Cross-plane filtering may be used to restore blurred edges and/or textures in one or both chroma planes using information from a corresponding luma plane. Adaptive cross-plane filters may be implemented. Cross-plane filter coefficients may be quantized and/or signaled such that overhead in a bitstream minimizes performance degradation. Cross-plane filtering may be applied to select regions of a video image (e.g., to edge areas). Cross-plane filters may be implemented in single-layer video coding systems and/or multi-layer video coding systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.