Phase retrieval: From computational imaging to machine learning: A tutorial
Phase retrieval consists in the recovery of a complex-valued signal from intensity-only
measurements. As it pervades a broad variety of applications, many researchers have …
measurements. As it pervades a broad variety of applications, many researchers have …
Construction of optimal spectral methods in phase retrieval
We consider the\emph {phase retrieval} problem, in which the observer wishes to recover a
$ n $-dimensional real or complex signal $\bX^\star $ from the (possibly noisy) observation …
$ n $-dimensional real or complex signal $\bX^\star $ from the (possibly noisy) observation …
Flyscan terahertz multi-plane lensless imaging with suppressed coherent noise
Q Yan, W Kong, G Li, C Chen, M He, P Gao, X Zhou… - Optics …, 2025 - opg.optica.org
Coherent lensless imaging usually suffers from coherent noise and twin-image artifacts. In
the terahertz (THz) range, where wavelengths are 2 to 4 orders of magnitude longer than …
the terahertz (THz) range, where wavelengths are 2 to 4 orders of magnitude longer than …
Total least squares phase retrieval
We address the phase retrieval problem with errors in the sensing vectors. A number of
recent methods for phase retrieval are based on least squares (LS) formulations which …
recent methods for phase retrieval are based on least squares (LS) formulations which …
Ptychography-based high-throughput lensless on-chip microscopy via incremental proximal algorithms
Ptychography-based lensless on-chip microscopy enables high-throughput imaging by
retrieving the missing phase information from intensity measurements. Numerous …
retrieving the missing phase information from intensity measurements. Numerous …
Structured Random Model for Fast and Robust Phase Retrieval
Phase retrieval, a nonlinear problem prevalent in imaging applications, has been
extensively studied using random models, some of which with iid sensing matrix …
extensively studied using random models, some of which with iid sensing matrix …
Ptychographic reconstruction with object initialization
F Wittwer, D Brückner, P Modregger - Optics Express, 2022 - opg.optica.org
X-ray ptychography is a cutting edge imaging technique providing ultra-high spatial
resolutions. In ptychography, phase retrieval, ie, the recovery of a complex valued signal …
resolutions. In ptychography, phase retrieval, ie, the recovery of a complex valued signal …
Parallel Fourier ptychographic microscopy reconstruction method based on FPGA
H Zhao, W Hui, Q Ye, K Huang, Q Shi, J Tian… - Optics …, 2023 - opg.optica.org
Fourier ptychographic microscopy (FPM) can bypass the limitation of spatial bandwidth
product to get images with large field-of-view and high resolution. The complicated …
product to get images with large field-of-view and high resolution. The complicated …
Stochastic Vector Approximate Message Passing with applications to phase retrieval
H Ueda, S Katakami, M Okada - arxiv preprint arxiv:2408.17102, 2024 - arxiv.org
Phase retrieval refers to the problem of recovering a high-dimensional vector $\boldsymbol
{x}\in\mathbb {C}^ N $ from the magnitude of its linear transform $\boldsymbol {z} …
{x}\in\mathbb {C}^ N $ from the magnitude of its linear transform $\boldsymbol {z} …
High-performance heterogeneous FPGA data-flow architecture for Fourier ptychographic microscopy
H Zhao, W Hui, Q Ye, K Huang, Q Shi, J Tian… - Applied Optics, 2022 - opg.optica.org
Fourier ptychographic microscopy (FPM) is a recently developed computational imaging
technique that can achieve both high-resolution and a wide field-of-view via a sequence of …
technique that can achieve both high-resolution and a wide field-of-view via a sequence of …