arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2103.05808physics.optics
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基于光束传输模型的大尺度全息粒子三维成像

Large-scale holographic particle 3D imaging with the beam propagation model

Hao Wang, Waleed Tahir, Jiabei Zhu, Lei Tian

摘要:

提出了一种新的三维粒子场大规模全息重建算法。我们的方法是基于多散射光束传播方法(BPM)结合稀疏正则化,使高折射率对比度从一个单一的全息图恢复密集的3D粒子。我们表明,BPM计算全息图产生的强度统计密切匹配的实验测量,并提供高达9 $\times$比单散射模型更高的精度。为了解决逆问题,我们设计了一个计算效率高的算法,它减少了两个数量级的计算时间相比,国家的最先进的多重散射为基础的技术。我们表现出优越的重建精度在不同的散射强度下的模拟和实验。我们表明,BPM重建显着优于单散射方法,特别是深成像深度和高粒子密度。

英文摘要:

We develop a novel algorithm for large-scale holographic reconstruction of 3D particle fields. Our method is based on a multiple-scattering beam propagation method (BPM) combined with sparse regularization that enables recovering dense 3D particles of high refractive index contrast from a single hologram. We show that the BPM-computed hologram generates intensity statistics closely matching with the experimental measurements and provides up to 9$\times$ higher accuracy than the single-scattering model. To solve the inverse problem, we devise a computationally efficient algorithm, which reduces the computation time by two orders of magnitude as compared to the state-of-the-art multiple-scattering-based technique. We demonstrate superior reconstruction accuracy in both simulations and experiments under different scattering strengths. We show that the BPM reconstruction significantly outperforms the single-scattering method in particular for deep imaging depths and high particle densities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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