Projection system that adjusts for keystoning
US7175285B2 · kind B2 · utility
19Cited by
16References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2003 |
| Grant date | Feb 13, 2007 |
| Priority date | — |
| Expiry date | Jul 29, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B21/53
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system for adjusting keystoning in a projector may include sensing using an imaging device at least two boundaries defining a projection screen and determining a transformation to adjust the keystoning of an image projected from the projector. The image may be modified from the projector in accordance with the transformation and projecting the modified image from the projector, wherein the imaging device and the projector are maintained in a fixed relationship with respect to each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.