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arXiv · 1708.02746

On the "unreasonable" effectiveness of Transport of Intensity imaging and optical deconvolution

T. E. Gureyev·Ya. I. Nesterets·A. Kozlov·D. M. Paganin·H. M. Quiney
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Abstract

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 behaviour by analysing the propagation of noise in typical in-line holography experiments. This analysis indicates that novel imaging techniques may be designed which produce high signal-to-noise images at low radiation doses without sacrificing spatial resolution.

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T. E. Gureyev, Ya. I. Nesterets, A. Kozlov, D. M. Paganin, H. M. Quiney. 2017-08-09. On the "unreasonable" effectiveness of Transport of Intensity imaging and optical deconvolution. https://doi.org/10.1364/josaa.34.002251

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