Multi-projector intensity blending system
US7866832B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2007 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Oct 10, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to projection systems where multiple projectors are utilized to create respective complementary portions of a projected image. The present invention also relates to methods of calibrating and operating individual image projectors. According to one embodiment of the present invention, an attenuation map is generated for the projectors and pixel intensity values are established for the projectors by applying one or more intensity transfer functions to the attenuation maps. The intensity transfer functions are configured to at least partially account for the non-linear response of the output intensity of the projectors, as a function of an input intensity control signal applied to the projectors. Additional embodiments are disclosed and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.