Image stability in telecines
US5619258A · kind A · utility
13Cited by
5References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 26, 1993 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Feb 26, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/11
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A telecine uses a flying-spot scanner to derive video images from a film. A scan control circuit is used to control the scan of the flying-spot to introduce special effects. Pairs of successive images may be misaligned and a motion vector estimator is used to detect the amount of misalignment. This produces a shift vector for an image stabilizer to shift one of the images of a pair. The motion vector estimator also receives data from the scan control circuit relating to any special effect in the images and corrects the shift vector in dependence on this.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.