Dynamic range support within a multi-layer hierarchical coding scheme
US11523118B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2019 |
| Grant date | Dec 6, 2022 |
| Priority date | — |
| Expiry date | Oct 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/234327
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a method for encoding and decoding a signal. The input signal (1000) is processed by at least converting the input signal (1000) from a high-dynamic range—HDR-signal to a standard dynamic range—SDR-signal, to produce a first processed signal. The first processed signal is encoded by a first encoding module (1004) to generate a first encoded signal (1012). The first encoded signal (1012) is decoded to generate a first decoded signal. The first decoded signal is processed together with the first processed signal by a second encoding module (1006) to generate a second encoded signal (1014). The second encoded signal (1014) is decoded and the result is combined with the first decoded signal (1012) to generate a second decoded signal. The second decoded signal is processed at least by converting the second decoded signal from a SDR signal to a HDR signal, to produce a second processed signal. The second processed signal and the input signal (1000) are processed by a third encoding module (1010) to generate a third encoded signal (1020).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.