Metasurface-based structured light 3D imaging system and method
US12113952B1 · kind B1 · utility
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8Claims
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Key dates
| Filing date | Sep 6, 2023 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Sep 6, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N13/296
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed are a metasurface-based structured light 3D imaging system and method, which use a metasurface-based control device to realize high-quality control of a laser beam, use a MEMS micromirror to scan and project the laser beam, and realize high-precision reconstruction of 3D information of the surface of an object together with related structured light design and demodulation methods. The invention realizes fine control of a structured light, improves the quality of a structured light field, reduces laser speckles and improves power, thus improving 3D imaging precision and robustness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.