Method for triggering projection fusion calibration and projection system
US11381794B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 13, 2021 |
| Grant date | Jul 5, 2022 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3188
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for triggering projection fusion calibration and a projection system is provided, including the following. First and second display contents are projected respectively onto a projection surface by a first projection device and a second projection device and fused into a complete display content including an overlapping area and a first non-overlapping area corresponding to a part of the first display content. A first image on the projection surface is captured, a first sharpness value corresponding to the first non-overlapping area and a specific sharpness value corresponding to the overlapping area based on the first image are obtained, and a first sharpness value difference between the first sharpness value and the specific sharpness value is obtained. In response to determining the first sharpness value difference being greater than a first threshold a fusion calibration operation is triggered, or a fusion calibration prompt is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.