Hybrid system for multi-projector geometry calibration
US8358873B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2011 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Nov 14, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B37/04
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of calibrating a multi-projector image display system is provided. According to the method, non-parametric calibration data for the display system is recovered and used to generate a non-parametric model of the display system. Local parametric models relating to the display surface of the projection screen are generated and are compared with data points defined by the non-parametric calibration data to identify one or more local errors in the non-parametric calibration data. The local errors in the non-parametric calibration data are converted to data points defined at least in part by the local parametric models and the projectors are operated to project an image on the image projection screen by utilizing a hybrid calibration model comprising data points taken from the non-parametric model and data points taken from one or more local parametric models. Additional embodiments are disclosed and claimed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.