System and method for correcting projector non-uniformity
US6817721B1 · kind B1 · utility
9Cited by
3References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 2, 2003 |
| Grant date | Nov 16, 2004 |
| Priority date | — |
| Expiry date | Jul 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/86
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method corrects the luminance non-uniformity of an image generating by a projector by generating a correction look-up table (LUT) for the projector. The projector receives input data and projects images based on the input data. The LUT attenuates the displayed image such that the whole image has the same luminance as the dimmest point. Input data received by the projector is modified by the correction information contained LUT, and the “corrected” data is used to run the projector, thereby correcting the non-uniformity in luminance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.