On the “unreasonable” effectiveness of transport of intensity imaging and optical deconvolution

Timur E. Gureyev, Yakov I. Nesterets, Alexander Kozlov, David M. Paganin, Harry M. Quiney

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53 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)2251-2260
Number of pages10
JournalJournal of the Optical Society of America A: Optics and Image Science, and Vision
Issue number12
Publication statusPublished - 1 Dec 2017

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