Image processing system, projector, program, information storage medium, and image processing method
US7270422B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2005 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Mar 18, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector includes an image projection section, a sensor that senses a projected first calibration image at a low resolution and generates first sensing information, senses the first calibration image at a high resolution and generates third sensing information, and senses a second calibration image at a high resolution and generates second sensing information, a projection area detection section that generates projection area information, based on the first and second sensing information, a projection-target area detection section that generates projection-target area information, based on the first, second, and third sensing information, and an image distortion correction section that corrects distortion of an image projected by the image projection section, based on the projection area information and the projection-target area information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.