Generating picture effects in video signals
US4746985A · kind A · utility
10Cited by
4References
57Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1986 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Dec 11, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Several effects are described which are programmable in telecines. Variable aperture correction is described which allows appropriate correction to be applied to different types of film stock. Soft focus and distortion effects are also described. The effects can be selected for whole scenes or for frames or frame portions, to give a range of effects which can be used to improve picture quality or for artistic effect.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.