Search Results for author: Iksung Kang

Found 6 papers, 3 papers with code

Coordinate-based neural representations for computational adaptive optics in widefield microscopy

1 code implementation7 Jul 2023 Iksung Kang, Qinrong Zhang, Stella X. Yu, Na Ji

We implemented CoCoA for widefield imaging of mouse brain tissues and validated its performance with direct-wavefront-sensing-based adaptive optics.

Accelerated deep self-supervised ptycho-laminography for three-dimensional nanoscale imaging of integrated circuits

1 code implementation10 Apr 2023 Iksung Kang, Yi Jiang, Mirko Holler, Manuel Guizar-Sicairos, A. F. J. Levi, Jeffrey Klug, Stefan Vogt, George Barbastathis

Two scanning operations are required: ptychographic to recover the complex transmissivity of the specimen; and rotation of the specimen to acquire multiple projections covering the 3D spatial frequency domain.

Self-Supervised Learning

Attentional Ptycho-Tomography (APT) for three-dimensional nanoscale X-ray imaging with minimal data acquisition and computation time

1 code implementation29 Nov 2022 Iksung Kang, Ziling Wu, Yi Jiang, YuDong Yao, Junjing Deng, Jeffrey Klug, Stefan Vogt, George Barbastathis

Noninvasive X-ray imaging of nanoscale three-dimensional objects, e. g. integrated circuits (ICs), generally requires two types of scanning: ptychographic, which is translational and returns estimates of complex electromagnetic field through ICs; and tomographic scanning, which collects complex field projections from multiple angles.

Limited-angle tomographic reconstruction of dense layered objects by dynamical machine learning

no code implementations21 Jul 2020 Iksung Kang, Alexandre Goy, George Barbastathis

Limited-angle tomography of strongly scattering quasi-transparent objects is a challenging, highly ill-posed problem with practical implications in medical and biological imaging, manufacturing, automation, and environmental and food security.

BIG-bench Machine Learning Transparent objects

Learning to Synthesize: Robust Phase Retrieval at Low Photon counts

no code implementations26 Jul 2019 Mo Deng, Shuai Li, Alexandre Goy, Iksung Kang, George Barbastathis

The quality of inverse problem solutions obtained through deep learning [Barbastathis et al, 2019] is limited by the nature of the priors learned from examples presented during the training phase.

Retrieval

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