Film grain simulation technique for use in media playback devices
US8023567B2 · kind B2 · utility
5Cited by
19References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2005 |
| Grant date | Sep 20, 2011 |
| Priority date | — |
| Expiry date | May 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/20204
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Simulation of a block of film grain for addition to a block of an image occurs by first establishing at least one parameter at least in part in accordance with an attribute of the image block. At least one at least one block of film grain is simulated from at least one film grain pattern generated in accordance with the at least one parameter. In particular, the film grain pattern is generated using a bit accurate technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.