Image processing system, projector, information storage medium, and image processing method
US7167645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 20, 2004 |
| Grant date | Jan 23, 2007 |
| Priority date | — |
| Expiry date | Mar 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0693
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projector includes an image projection section which projects a white image and a black image, a sensor which has an exposure adjustment function, generates first sensing information by sensing the white image, and generates second sensing information by sensing the black image, a sensing condition setting section which controls exposure of the sensor so that the sensor senses the white image at an automatic exposure setting and senses the black image at the exposure setting determined when sensing the white image, a difference information generation section which generates difference information based on the first sensing information and the second sensing information, and an endpoint detection section which detects an endpoint of a projection region in a sensing region based on the difference information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.