Efficient coherent diffractive imaging for sparsely varying objects
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Updated: May 13, 2026

Digital Inline Holographic Microscopy (DIHM) of Weakly-scattering Subjects
Published on: February 8, 2014
Yoav Shechtman1, Yonina C Eldar, Oren Cohen
1Physics Department, Technion - Israel Institute of Technology, Haifa 32000, Israel.joe@tx.technion.ac.il
Abstract:
We demonstrate an efficient phase-retrieval method, allowing the recovery of features of dynamic objects that are sparsely varying--i.e. when the difference between two consecutive frames is small. The method uses redundancy in information between similar consecutive frames to recover the features more robustly than current phase-retrieval methods, and necessitates a considerably smaller number of measurements. Both of these features directly lead to shorter acquisition time, paving the way to coherent diffractive imaging of fast dynamic processes. Numerical simulations show a possible 100-fold improvement in temporal resolution over existing methods.
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