Camera calibration system
US9589348B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2016 |
| Grant date | Mar 7, 2017 |
| Priority date | — |
| Expiry date | May 31, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/80
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical calibration system is configured to determine camera calibration information of a virtual reality camera. The optical calibration system comprises a light source, a first and a second planar grid, and an optical calibration controller. The light source is configured to backlight the first and the second planar grids. Each planar grid includes a plurality of fiducial markers that are backlit by the light source. The optical calibration controller determines camera calibration information of a virtual reality camera selecting and analyzing a plurality of captured images that include a portion of the first or the second planar grid with fiducial markers backlit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.