Source：Nature Communications

Authors：Xuanlun Huang、Chenyang Wu、Xiaolan Xu、Connie J. Chang-Hasnain Etc.

Published：2023-10-27

DOI：10.1038/s41467-023-41095-9

Link：https://www.nature.com/articles/s41467-023-42678-5

Core Research Progress

Traditional structured light 3D imaging is plagued by depth errors caused by highly reflective surfaces, which remain a major technical challenge. This study presents a Polarization Structured Light 3D Sensor. Leveraging the polarization characteristics of high-contrast grating vertical-cavity surface-emitting lasers (HCG-VCSELs), it fuses polarization and depth information to achieve accurate depth measurement on highly reflective surfaces. The proposed method effectively eliminates imaging errors and extends the measurement range.

Technical Application Value

This technology breaks the adaptation bottleneck of conventional imaging in highly reflective scenarios. Optimization in the polarization dimension greatly improves the accuracy and stability of 3D detection. It effectively remedies the deficiencies of 3D perception technology for reflective surfaces. Suitable for industrial precision inspection, measurement of reflective components and real-scene 3D reconstruction, it offers a new solution for the iteration of high-robustness 3D sensing devices.

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