Depth camera assembly using multiplexed sensor phase measurements to determine depth using fringe interferometry
US10491877B1 · kind B1 · utility
7Cited by
2References
19Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 21, 2017 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Dec 21, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B2027/0138
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A depth camera assembly (DCA) determines distances between the DCA and objects in a local area within a field of view of the DCA. The DCA projects a series of sinusoidal patterns into the local area DCA and captures images of the sinusoidal patterns via a sensor. Each pixel of the augmented sensor includes a plurality of charge bins, and charge accumulated by a photodiode of a pixel during different time intervals (e.g., times when different sinusoidal patterns are emitted) is stored in a different charge storage bin. Charge may be retrieved from different charge storage bins to determine depth from the DCA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.