ArticleNature communications2026
Large-array sub-millimeter precision coherent flash three-dimensional imaging.
Article in Nature communications, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Authors and funding
10 authors.
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Abstract
High-precision three-dimensional (3D) imaging is essential for accurately perceiving environments, providing critical depth and spatial awareness. Among various approaches, solid-state LiDAR systems have garnered significant attention. However, depth precision, detection range and pixel scalability remain key challenges for their widespread adoption. Here, we report a large-array coherent flash 3D imaging system that achieves a sub-millimeter range precision through stepped-frequency modulation and coherent detection with CCD sensors. A coherent image sensor is developed, and a prototype system is demonstrated, providing 3D imaging with a depth precision as high as 0.47 mm over a range of 30.50 m at an optical power of 15.86 mW and a maximum frame rate of 10 Hz. Our system features high range precision, exceptional sensitivity across long distances, and robust pixel scalability by directly leveraging well-established CCD sensors. This advancement introduces a scalable approach to long-range high-precision 3D imaging, with substantial implications for deformation monitoring, virtual reality, and cultural heritage preservation.
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