Depiction of images using inverse perspective transformation to provide 3-D effect
US5933544A · kind A · utility
4Cited by
6References
4Claims
0Family size
Inventors
Key dates
| Filing date | Jul 1, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Jul 1, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/20
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image, eg of an advertising or promotional nature, is depicted in an inverse perspective form on a playing field (10) for a sporting event. The playing field is imaged by means of a video camera (12) whose line of sight (14) corresponds to the line of sight used in transforming the image to its inverse perspective form, and the output of the camera then broadcast or diffused in a television broadcasting or diffusion service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.