Temporally dissolved dithering
US6147671A · kind A · utility
23Cited by
26References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 13, 1994 |
| Grant date | Nov 14, 2000 |
| Priority date | — |
| Expiry date | Sep 13, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G5/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A set different dither matrices is employed in a repetitive manner to accomplish elimination of contouring while at the same time not adding typical "dither graininess" to a digital video image. The matrices are specially chosen to result in a time-averaged zero dithering bias when applied frame-by-frame in a long sequence of frames.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.