T.V. Special effects generator
US4334245A · kind A · utility
47Cited by
1References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1980 |
| Grant date | Jun 8, 1982 |
| Priority date | — |
| Expiry date | Aug 26, 2000 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/275
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A T.V. special effects generator which includes a store for a video image and a coefficient processor connected to the store which synthesises picture points from the stored video image to provide a processed image which has a shape dependent on mask data controlling this picture point synthesis which results in an image distorted into the desired shape to give a fish-eye effect for example. The mask data may be generated in a computer or by using a T.V. camera and the processed mask information may be used as the key input in a studio mixer. Additional control of the size of the image can be effected to provide picture zoom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.