QP derivation and offset for adaptive color transform in video coding
US9883184B2 · kind B2 · utility
15Cited by
7References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2015 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Mar 11, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/60
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for decoding video data is configured to determine for one or more blocks of the video data that adaptive color transform is enabled; determine a quantization parameter for the one or more blocks; in response to a value of the quantization parameter being below a threshold, modify the quantization parameter to determine a modified quantization parameter; and dequantize transform coefficients based on the modified quantization parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.