Methods for camera calibration via bundle adjustment
US12333762B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2023 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Jan 10, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0138
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods for performing a camera calibration process for outward-facing cameras on devices such as head-mounted display devices are disclosed. Using cameras with overlapping fields of view, relative rotational parameters of the cameras with respect to one another may be determined using an optimization technique such as a two-view bundle adjustment algorithm. A statistical analysis of the relative rotational parameters of the cameras, determined for a plurality of moments in time, may then be made to provide updated relative rotational parameters for recalibration of the cameras. A camera calibration process, such as those disclosed, may not depend on tracking points of interest over multiple moments in time, but rather on a convergence of the relative rotational parameters determined for respective moments in time.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.