All-optical object identification and three-dimensional reconstruction based on optical computing metasurface

https://phys.org/news/2023-12-all-optical-identification-three-dimensional-reconstruction-based.html

"compact, vastly efficient, faster speed, low latency, more integrated methods, whether high- or low- contrast object... rotation and slice methods for high-contrast objects... break the orthogonal polarization state technique for low-contrast objects... objects sliced at tiny intervals, and multiple contour results of object on different projection planes captured by CCD camera... seed screening, surface topography detection, quantitative microscopic 3D reconstruction, reverse engineering, AI, medical diagnosis, industry"