Hansol Yoon

Numerical-aperture transfer in holotomography with a deterministic diffusion prior

Dong-min Ryu, Jeong-hyun Roh, Woon-soo Lee, Hansol Yoon et autres

High-throughput holotomography often relies on long-working-distance, multiwell-compatible optics that reduce illumination numerical aperture (NA) and limit access to high spatial frequencies. Here we present ResShift-ODE, a deterministic diffusion-prior framework that transfers low-NA refractive-index (RI) tomograms to high-NA-equivalent volumes without modifying the acquisition …

Numerical-aperture transfer in holotomography with a deterministic diffusion prior

Dong-min Ryu, Jeong-hyun Roh, Woon-soo Lee, Hansol Yoon et autres

High-throughput holotomography often relies on long-working-distance, multiwell-compatible optics that reduce illumination numerical aperture (NA) and limit access to high spatial frequencies. Here we present ResShift-ODE, a deterministic diffusion-prior framework that transfers low-NA refractive-index (RI) tomograms to high-NA-equivalent volumes without modifying the acquisition …

kr, us (code pays fourni par la source)

Real-time Acquisition-to-display Panoramic Super-resolution Microscopy

Hansol Yoon, Kyungduck Yoon, Kidan Tadesse, Maryam Hejri et autres

us (code pays fourni par la source)

Pupil Plane Multiplexing for Vectorial Fourier Ptychography

Hyesuk Chae, K. G. Lee, Yong Guk Kang, Hansol Yoon et autres

ABSTRACT We present a flexible and cost‐effective computational imaging framework for multichannel microscopy based on pupil plane multiplexing, enabling efficient spectral and polarization‐resolved imaging without bulky optical components. Conventional multichannel systems require sequential acquisition or hardware‐level multiplexing, often requiring complex optics or …

kr, us, pr (code pays fourni par la source)

Real-time, high-throughput super-resolution microscopy via panoramic integration

Kyungduck Yoon, Hansol Yoon, Kidan Tadesse, Zhi Ling et autres

We introduce super-resolution panoramic integration (SPI), an on-the-fly microscopy technique enabling instantaneous generation of subdiffractional images concurrently with scalable, high-throughput screening. SPI leverages multifocal optical rescaling, high-content sweeping, and synchronized line-scan readout while preserving minimal post-processing and compatibility with epi-fluorescence settings. We …

us (code pays fourni par la source)

Real-time, High-throughput Super-resolution Microscopy via Panoramic Integration

Kyungduck Yoon, Hansol Yoon, Kidan Tadesse, Zhi Ling et autres

We introduce super-resolution panoramic integration (SPI), an on-the-fly microscopy technique enabling instantaneous generation of subdiffractional images concurrently with scalable, high-throughput screening. SPI leverages multifocal optical rescaling, high-content sweeping, and synchronized line-scan readout while preserving minimal post-processing and compatibility with epi-fluorescence settings. We …

us (code pays fourni par la source)

Multiscale and recursive unmixing of spatiotemporal rhythms for live-cell and intravital cardiac microscopy

Zhi Ling, Wenhao Liu, Kyungduck Yoon, Jessica Hou et autres

us, es (code pays fourni par la source)

Single-shot Fourier ptychography using polarization-encoded illumination

Hansol Yoon, Hyesuk Chae, Kyung Chul Lee, Kyungwon Lee et autres

Fourier ptychography (FP) is widely adopted for label-free, high-resolution quantitative phase imaging (QPI) of biological samples. However, its imaging speed is limited by the need for multiple acquisitions. In this work, we propose a single-shot FP technique that uses linear polarizers to …

kr (code pays fourni par la source)

Real-Time, High-Throughput Super-Resolution Microscopy with Panoramic Integration

Hansol Yoon, Kyungduck Yoon, Shu Jia

We present super-resolution panoramic integration for real-time, high-throughput imaging by combining multifocal reassignment, synchronized line-scan, and unsupervised deep learning, achieving scalable imaging with two-fold resolution enhancement.

us (code pays fourni par la source)

Polarization-sensitive Fourier ptychography via pupil plane multiplexing

Hyesuk Chae, Kyungwon Lee, Hansol Yoon, Kyung Chul Lee et autres

We present a novel polarization-sensitive Fourier Ptychographic Microscopy (FPM) method that leverages multiplexing techniques in the Fourier plane, eliminating the need for costly polarization cameras or mechanical polarizer rotations. By simply introducing semicircular 0° and 90° linear polarizers in the Fourier plane …

kr (code pays fourni par la source)

An Adaptive Harmonic Separation Technique for Ultrasound Harmonic Imaging

Hansol Yoon, Tai‐Kyong Song

OBJECTIVE: An adaptive harmonic separation (HS) technique is proposed to overcome the limitations in conventional filtering techniques for ultrasound (US) tissue harmonic imaging (THI). METHODS: Based on expectation-maximization source separation, the proposed HS technique adaptively models the depth-varying fundamental and harmonic components …

kr (code pays fourni par la source)

Polarized LED array microscope for single-shot quantitative phase imaging

Hansol Yoon, Hyesuk Chae, Kyung Chul Lee, Kyungwon Lee et autres

Typical LED array microscopes require multiple image acquisitions for phase retrieval. Here, we propose a polarized LED array microscope for single-shot quantitative phase imaging with aberration correction. We implemented polarization-encoded illumination multiplexing by placing a custom-made polarization filter on top of the …

kr (code pays fourni par la source)