Projection system, projector, program, information storage medium and image processing method
US7034852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2003 |
| Grant date | Apr 25, 2006 |
| Priority date | — |
| Expiry date | Apr 21, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N17/02
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to provide a projection system, projector, program, information storage medium and image processing method which can reduce an unpleasantness to an observer in an image calibration when it is executed in consideration of the ambient light, a calibration information output section selects and outputs calibration information, a color light sensor then measures XYZ values in the respective projected calibration images, and a measurement data is then stored in a sensing value holding section, when a synchronizing signal judgment section judges that no synchronizing signal has been inputted. When all the color correcting measurement data have been provided, a 3D-LUT update section updates a 3D-LUT stored in the 3D-LUT storage section, based on the measurement data. When all the brightness correction measurement data have been provided, a 1D-LUT update section updates a 1D-LUT stored in a 1D-LUT storage section to execute the calibration, based on the measurement data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.