Baseline-free structured light 3D imaging using a metasurface double-helix dot projector

Nanophotonics, Journal Year: 2025, Volume and Issue: 14(8), P. 1265 - 1272

Published: Feb. 6, 2025

Abstract Structured light is a widely used 3D imaging method with drawback that it typically requires long baseline length between the laser projector and camera sensor, which hinders its utilization in space-constrained scenarios. On other hand, application of passive methods, such as depth from depth-dependent point spread functions (PSFs), impeded by challenge measuring textureless scenes. Here, we combine advantages both structured PSFs propose baseline-free system. A metasurface designed to project dot array encode information double-helix pattern each simultaneously. Combined straightforward fast algorithm, demonstrate accurate cloud acquisition for various real-world scenarios including multiple cardboard boxes living human face. Such technique may find broad range areas consumer electronics precision metrology.

Language: Английский

Dynamic scene 360° three-dimensional reconstruction with large field-of-view based on metasurface-enabled structured light

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 188, P. 112901 - 112901

Published: April 4, 2025

Language: Английский

Multi-Channel Tunable Metasurface with Color Image Encryption

Optics Communications, Journal Year: 2025, Volume and Issue: unknown, P. 131929 - 131929

Published: April 1, 2025

Language: Английский