On the "unreasonable" effectiveness of transport of intensity imaging and optical deconvolution
On the "unreasonable" effectiveness of transport of intensity imaging and optical deconvolution
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DOI：
10.1364/josaa.34.002251
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发表时间：
2017-12-01
影响因子：
1.9
通讯作者：
Quiney, Harry M.
中科院分区：
文献类型：
--
作者：
Gureyev, Timur E.;Nesterets, Yakov I.;Quiney, Harry M.
使用强度方程的均匀传输的重建成像的有效性可以被认为是“不合理的”，因为与相同光子注量下的等效的传统的基于吸收的成像技术相比，它已经被示出在保持空间分辨率的同时显著增加信噪比。我们调和这种令人惊讶的行为，通过分析在典型的同轴全息实验中的噪声传播。该分析表明，可以设计新的成像技术，在不牺牲空间分辨率的情况下，在低辐射剂量下产生高信噪比图像。(C)2017美国光学学会
The effectiveness of reconstructive imaging using the homogeneous transport of intensity equation may be regarded as "unreasonable," because it has been shown to significantly increase signal-to-noise ratio while preserving spatial resolution, compared to equivalent conventional absorption-based imaging techniques at the same photon fluence. We reconcile this surprising behavior by analyzing the propagation of noise in typical in-line holography experiments. This analysis indicates that novel imaging techniques may be designed that produce high signal-to-noise images at low radiation doses without sacrificing spatial resolution. (C) 2017 Optical Society of America