System for detecting six degrees of freedom of movement by tracking optical flow of backscattered laser speckle patterns
US11150725B2 · kind B2 · utility
1Cited by
5References
20Claims
0Family size
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Key dates
| Filing date | Apr 7, 2020 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Apr 7, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/30244
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Augmented reality headgear includes transparent displays that allow a user to simultaneously view the real world and virtual content positioned in the real world and further includes at least one source of coherent light and at least one sensor array for sensing, at a series of times, speckle patterns produced when the coherent light impinges environment surfaces. Circuitry is provided for sensing shifts in the speckle pattern and determining motion which caused the shift of the speckle pattern and adjusting the display of virtual objects displayed by the augmented reality headgear to compensate for the motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.