Method for globally aligning multiple projected images
US6755537B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2003 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Mar 21, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method forms a cluster from a set of projectors. Each projector in the set includes a projector sub-system in a fixed physical relationship to a camera sub-system, and a communication sub-system for sending and receiving messages. A calibrate message is received in the projectors via the communications sub-system. A ready message is broadcast by the projectors using the communications sub-system. A structured pattern is projected sequentially by each of the projectors on a display surface using the projector sub-system. An input image of the structured pattern is acquired sequentially by each of the projectors using the camera sub-system. The projectors are globally aligned with each other and the display surface according to the input images.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.