Projection system and positioning method applied to projection system
US11381792B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2021 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Mar 17, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3194
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection system and a positioning method capable of positioning a projected image are provided. The projection system includes a projection device, an image capturing device, and a determination module. The projection device projects a plurality of display grid points. The image capturing device captures images of the plurality of display grid points to obtain a plurality of display results corresponding to the plurality of display grid points. The determination module receives the plurality of display results. The determination module controls the projection device not to project at least one unrecognizable display grid point corresponding to the at least one unrecognizable display result when determining that the plurality of display results include the at least one unrecognizable display result. The invention is provided to improve the accuracy of matching or stitching of a projected image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.