arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1806.01067physics.optics
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利用最大空间带宽投影的光学衍射层析成像三维分辨率的广义量化

Generalized quantification of three-dimensional resolution in optical diffraction tomography using the projection of maximal spatial bandwidths

Chansuk Park, Seungwoo Shin, Yongkeun Park

摘要:

光学衍射层析成像(ODT)是一种三维(3D)定量相位成像技术,它能够重建透明样品的三维折射率(RI)分布。由于其快速,非侵入性和定量3D成像能力,ODT已成为各种应用中最强大的工具之一。然而,ODT的空间分辨率仅在有限的条件下沿横向和轴向方向进行了量化;尚未对任意倾斜方向进行研究。在本文中,我们系统地量化三维空间分辨率的ODT利用重建的散射势的空间带宽。计算了不同类型ODT系统的三维空间分辨率,包括照明扫描、样品旋转和混合扫描旋转方法。特别地,使用计算的3D空间分辨率,我们提供了空间分辨率以及任意切片角度。此外,为了验证本方法,ODT系统的点扩散函数的实验获得使用的微球的三维RI分布的反卷积,并与计算的分辨率进行比较。本方法定义的空间分辨率在ODT是直接适用于各种三维显微技术,提供了一个坚实的标准,可访问的最精细的三维结构。

英文摘要:

Optical diffraction tomography (ODT) is a three-dimensional (3D) quantitative phase imaging technique, which enables the reconstruction of the 3D refractive index (RI) distribution of a transparent sample. Due to its fast, non-invasive, and quantitative 3D imaging capability, ODT has emerged as one of the most powerful tools for various applications. However, the spatial resolution of ODT has only been quantified along the lateral and axial directions for limited conditions; it has not been investigated for arbitrary-oblique directions. In this paper, we systematically quantify the 3D spatial resolution of ODT by exploiting the spatial bandwidth of the reconstructed scattering potential. The 3D spatial resolution is calculated for various types of ODT systems, including the illumination-scanning, sample-rotation, and hybrid scanning-rotation methods. In particular, using the calculated 3D spatial resolution, we provide the spatial resolution as well as the arbitrary sliced angle. Furthermore, to validate the present method, the point spread function of an ODT system is experimentally obtained using the deconvolution of a 3D RI distribution of a microsphere and is compared with the calculated resolution. The present method for defining spatial resolution in ODT is directly applicable for various 3D microscopic techniques, providing a solid criterion for the accessible finest 3D structures.

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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