Method and apparatus for correlating video and film images produced from electronic data
US4730214A · kind A · utility
14Cited by
3References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1986 |
| Grant date | Mar 8, 1988 |
| Priority date | — |
| Expiry date | Sep 15, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/87
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for transferring electronic image data to film which provides correlation or matching between an image as viewed on a video monitor and an image viewed on film. Apparatus is disclosed for measuring image intensity on a video monitor and converting the measured intensity to electronic signals. The image intensity on film under controlled lighting is measured and signals representative of film density provided. The signals obtained by the two measurements are compared and any difference is used to vary a film writing system in a manner to minimize the difference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.