Process and apparatus for creating traveling mattes
US4537481A · kind A · utility
5Cited by
8References
9Claims
0Family size
Inventor
Key dates
| Filing date | Nov 1, 1982 |
| Grant date | Aug 27, 1985 |
| Priority date | — |
| Expiry date | Nov 1, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B15/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for creating traveling mattes in which a first image is photographed and then sensed. The first image is then electronically processed followed by the steps of photographing on the same film a successive image and simultaneously transmitting to a light valve an electronic signal to produce a high-contrast negative image corresponding to the first image so that the successive image is combined with the first image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.