Adjusting quantization/scaling and inverse quantization/scaling when switching color spaces
US10567769B2 · kind B2 · utility
19Cited by
2References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2018 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Sep 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/186
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Innovations in adaptive encoding and decoding for units of a video sequence can improve coding efficiency when switching between color spaces during encoding and decoding. For example, some of the innovations relate to adjustment of quantization or scaling when an encoder switches color spaces between units within a video sequence during encoding. Other innovations relate to adjustment of inverse quantization or scaling when a decoder switches color spaces between units within a video sequence during decoding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.