Backwards-compatible delivery of digital cinema content with extended dynamic range
US8872981B1 · kind B1 · utility
3Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2012 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Dec 6, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20208
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A digital cinema signal is encoded to produce a resulting coded digital cinema bitstream. Decoding the resulting coded digital cinema bitstream allows backwards-compatible delivery of digital cinema content. A digital image or video signal is preprocessed to produce two normalized digital image or video signals of differing quality levels and forward and inverse mapping parameters, which relate the normalized digital image or video signals. The preprocessing can be used prior to the encoding of a digital cinema signal to enable backwards-compatible delivery of digital cinema content.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.