Single-shot phase retrieval using automatic differentiation and bilateral total variation

Chunyuan Chen; Zexin Feng

doi:10.1117/12.3037196

4 December 2024 Single-shot phase retrieval using automatic differentiation and bilateral total variation

Chunyuan Chen, Zexin Feng

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Proceedings Volume 13283, Conference on Spectral Technology and Applications (CSTA 2024); 1328341 (2024) https://doi.org/10.1117/12.3037196
Event: Conference on Spectral Technology and Applications (CSTA 2024), 2024, Dalian, China

Abstract

The non-interferometric phase retrieval technique is a versatile tool with a wide range of applications including quantitative phase imaging, astronomical imaging, and beam shaping. The single-shot phase retrieval technique, requiring a single measurement, simplifies optical setups but presents implementation challenges. We propose a single-shot phase retrieval method based on automatic differentiation, along with physical constraints and bilateral total variation regularization. The non-convex optimization problem of phase retrieval can be efficiently solved using a gradient descent algorithm, and the model incorporating prior knowledge effectively characterizes the phase features. Simulation results demonstrate that our method achieves high-quality phase reconstruction with noise robustness. The proposed framework is flexible, easy to extend, and has great potential for addressing various phase retrieval challenges.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Chunyuan Chen and Zexin Feng "Single-shot phase retrieval using automatic differentiation and bilateral total variation", Proc. SPIE 13283, Conference on Spectral Technology and Applications (CSTA 2024), 1328341 (4 December 2024); https://doi.org/10.1117/12.3037196

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KEYWORDS

Phase retrieval

Diffraction

Image restoration

Phase reconstruction

Reconstruction algorithms

Signal to noise ratio

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