Projection type image display system, projector, program, information storage medium and image projection method capable of avoiding obstacles in the projection area
US7292252B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 16, 2003 |
| Grant date | Nov 6, 2007 |
| Priority date | — |
| Expiry date | May 16, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/745
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To provide a projection type image display system, projector, program, information storage medium and image projection method which can project an image applicable to viewing environment of a changed projection position, a liquid crystal projector is provided with: a sensor for sensing a projection target area and outputting sensing information; an edge detection section for outputting detection information based on the sensing information; a projectable area determination section for determining a projectable area based on the detection information; a projection area selecting section for selecting a projection area from the projectable area; a sensing data generation section for generating sensing data applicable to viewing environment of the selected projection area, based on the sensing information of the selected projection area; an LUT data generation section for generating LUT data; a correction section for correcting image information based on the generated LUT data; and an image projection section for projecting an image onto the projection area based on the corrected image information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.