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Imaging through a diffusive medium has a wide range of biological and medical applications. However, multiple scattering through a turbid medium distorts the spatiotemporal information of the incident light. We propose a method based on a light field tomography that allows imaging of an object through a turbid medium without requiring any prior knowledge of medium/target or inverting ill-posed diffusion equation. The approach employs ballistic photons via time gating, and maps projections of different angles onto a 1-D detector by using a cylindrical lens array. This ballistic photon measurement along with depth retrieval capacity enables 3D imaging through turbid medium.
Woong Jae Baek,Jongchan Park, andLiang Gao
"Ballistic three-dimensional imaging through scattering media based on light field diffuse optical tomography", Proc. SPIE PC12857, Computational Optical Imaging and Artificial Intelligence in Biomedical Sciences, PC1285717 (13 March 2024); https://doi.org/10.1117/12.3000588
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Woong Jae Baek, Jongchan Park, Liang Gao, "Ballistic three-dimensional imaging through scattering media based on light field diffuse optical tomography," Proc. SPIE PC12857, Computational Optical Imaging and Artificial Intelligence in Biomedical Sciences, PC1285717 (13 March 2024); https://doi.org/10.1117/12.3000588