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Lens-free facial recognition system performs as well as current smartphone tech

Facial recognition

The new system scans Michelangelo’s David and reconstructs the image using less power than existing 3D surface imaging systems. (Image: Adapted from Nano Letters, 2024, DOI: 10.1021/acs.nanolett.3c05002)

The metasurface-based facial recognition system replaces a traditional dot projector with significantly reduced size and power consumption

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