Image processing system, projector, portable device, and image processing method
US7036940B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2003 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Dec 17, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3185
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In order to provide an image processing system, a projector, a portable device, and an image processing method that enable the correction of keystone distortion in the horizontal direction automatically and also appropriately, a remote controller operated by the viewer is provided with a projection area imaging function and a direction determination function; a receiver section is used to receive imaging information and direction information; a horizontal keystone distortion correction section is used to select a keystone distortion correction value from a 3D-LUT containing keystone distortion correction values, based on the imaging information and direction information; and a resizing section is used to correct the keystone distortion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.