Systems and methods for providing 3D look-up table coding for color gamut scalability
US9955174B2 · kind B2 · utility
14Cited by
12References
27Claims
0Family size
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Key dates
| Filing date | Sep 19, 2014 |
| Grant date | Apr 24, 2018 |
| Priority date | — |
| Expiry date | Sep 19, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/96
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for improving efficiency in three-dimensional (3D) look-up table (LUT) coding and/or reducing table size of a 3D LUT may be provided. For example, octants associated with the 3D LUT may be provided for color space segmentation and coding may be performed on an octree associated with the octants where coding may include encoding nodes of the octree associated with the octants and corresponding vertices of the 3D LUT belonging to the nodes. Conversion parameters represented by the nodes are lossy coded with reduced precision. The 3D LUT may also be signaled (e.g., based on a sequence and/or picture level).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.