Patent · US Active

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 dateNov 22, 2005
Grant dateSep 20, 2011
Priority date
Expiry dateMay 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.