Image display system, projector, program, information storage medium, and image processing method
US6927784B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 26, 2002 |
| Grant date | Aug 9, 2005 |
| Priority date | — |
| Expiry date | Dec 26, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/144
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to provide an image display system, a projector, a program, an information storage medium, and an image processing method that make it possible to perform calibration without interrupting the display of an image for a presentation or the like, an image processing section of a projector is provided with an area identification section that identifies a display area and a non-display area, based on environmental information measured by a CCD sensor; a brightness change derivation section that derives any change in the brightness of the non-display area; a grayscale correction parameter derivation section that derives a grayscale correction parameter corresponding to the change in brightness; and a 1D-LUT generation section that generates a 1D-LUT used in the correction of brightness in accordance with the grayscale correction parameter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.