249 citations · 486 across the 8 of their papers we have counts for
9 papers
Binary Phase Retrieval of Cosine Transforms via Local Curvature Minimization
Ronald Ogden, Shwetadwip Chowdhury, Takashi Tanaka +1
Cosine transforms see frequent use in image and video compression due to their ease of computation and high energy compaction. This has sparked interest within the optics community…
Space-time inverse-scattering of translation-based motion
Jeongsoo Kim, Shwetadwip Chowdhury
In optical diffraction tomography (ODT), a sample's 3D refractive-index (RI) is often reconstructed after illuminating it from multiple angles, with the assumption that the sample…
3D scattering microphantom sample to assess quantitative accuracy in tomographic phase microscopy techniques
Wojciech Krauze, Arkadiusz Kuś, Michał Ziemczonok +3
In this paper we present a method to robustly evaluate the quantitative accuracy of various tomographic phase microscopy (TPM) methods with a multiple scattering 3D-printed microph…
High-resolution 3D refractive index microscopy of multiple-scattering samples from intensity images
Shwetadwip Chowdhury, Michael Chen, Regina Eckert +4
Optical diffraction tomography (ODT) reconstructs a samples volumetric refractive index (RI) to create high-contrast, quantitative 3D visualizations of biological samples. However,…
Computational structured illumination for high-content fluorescent and phase microscopy
Li-Hao Yeh, Shwetadwip Chowdhury, Laura Waller
High-content biological microscopy targets high-resolution imaging across large fields-of-view (FOVs). Recent works have demonstrated that computational imaging can provide efficie…
Structured illumination fluorescence microscopy using Talbot self-imaging effect for high-throughput visualization
Shwetadwip Chowdhury, Jeffrey Chen, Joseph A. Izatt
We report a novel extension to structured illumination (SI) microscopy that utilizes the Talbot self-imaging effect to generate a SI pattern on a sample with field-of-view (FOV) an…
Structured illumination microscopy for dual-modality 3D sub-diffraction resolution fluorescence and refractive-index reconstruction
Shwetadwip Chowdhury, Will J. Eldridge, Adam Wax +1
Though structured illumination (SI) microscopy is a popular imaging technique conventionally associated with fluorescent super-resolution, recent works have suggested its applicabi…
Refractive index tomography with structured illumination
Shwetadwip Chowdhury, Will J. Eldridge, Adam Wax +1
This work introduces a novel reinterpretation of structured illumination (SI) microscopy for coherent imaging that allows three-dimensional imaging of complex refractive index (RI)…
Structured illumination multimodal 3D-resolved quantitative phase and fluorescence sub-diffraction microscopy
Shwetadwip Chowdhury, Will J. Eldridge, Adam Wax +1
Sub-diffraction resolution imaging has played a pivotal role in biological research by visualizing key, but previously unresolvable, sub-cellular structures. Unfortunately, applica…