Camera calibration for augmented reality
US10839557B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 2018 |
| Grant date | Nov 17, 2020 |
| Priority date | — |
| Expiry date | Dec 3, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Approaches herein provide for multi-camera calibration and subsequent application in augmented reality applications. The approach obtains image data of a three-dimensional (3D) calibration object from different directions using the at least one camera. A determination is made for extrinsic parameters associated with a relative position of the 3D calibration object to the at least one camera. A further determination is made for intrinsic parameters associated with the at least one camera relative to the 3D calibration object facing in the different positions. Revised intrinsic parameters are generated from the intrinsic parameters. The revised intrinsic parameters provide a calibration output that may be applied to generate views of an item in an augmented reality application.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.