Process and apparatus for adding titles, subtitles, and computer-generated images to pre-existing photographic images
US5031122A · kind A · utility
18Cited by
8References
10Claims
0Family size
Inventor
Key dates
| Filing date | Nov 28, 1990 |
| Grant date | Jul 9, 1991 |
| Priority date | — |
| Expiry date | Nov 28, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2217/248
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method and apparatus for adding titles, subtitles, and computer-generated images to pre-existing film images as part of the process of rephotography or photographic printing, in which a light valve is used first to create a high-contrast mask to prevent double exposure, and the same light valve is subsequently used to expose the image of the titles, subtitles, or computer-generated graphics onto the film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.