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Ultra-fast 3D imaging by a big codewords space division multiplexing binary coding
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DOI：10.1364/OL.488980.png)
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Patternless binary coding strategies have been a challenge for ultra-fast 3D imaging with structured light. This Let-ter proposes a big codewords space division multiplexing binary coding method. From the third to the multiple order, a special spatial binary coding instead of the Gray code is created for the first time, to the best of our knowledge, to achieve an ultra-wide unambiguous range with only one auxiliary pattern. Advantageously, a connection domain seg-mentation technique with anomaly detection is proposed to achieve decoding of the fringe order, which cleverly avoids the misalignment problem. Additionally, a center of grav-ity method is applied to compensate for the codewords of the residual connected domain. The robustness and effec-tiveness of the proposed method for complex, isolated, and non-uniform reflectivity objects, as well as the ultra-fast 3D imaging of dynamic measurements, are experimentally ver-ified. & COPY; 2023 Optica Publishing Group
期刊
IF:
3.3
论文数:
4.0W
被引数:
7.6W
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