5 citations · 5 across the 4 of their papers we have counts for
5 papers
A 2D autocorrelation-based frequency estimator reflecting spatial tissue distribution to improve Ultrasound H-scan tissue characterization
Jihye Baek, Thurston Brevett, Dongwoon Hyun +4
H-scan is a promising quantitative ultrasound technique that estimates the frequency content of backscattered signals and maps the estimated frequencies onto a red/blue color scale…
The Contrast Order: An Order-Based Image Quality Criterion for Nonlinear Beamformers
Dongwoon Hyun
Many modern ultrasound beamformers report improved image quality when evaluated using classical criteria like the contrast ratio and contrast-to-noise ratio, which are based on sum…
A Wavefield Correlation Approach to Improve Sound Speed Estimation in Ultrasound Autofocusing
Louise Zhuang, Samuel Beuret, Ben Frey +4
In pulse-echo ultrasound, aberration often degrades image quality when beamforming does not account for wavefront distortions. To address this issue, local sound speed estimators h…
Enhancing Ultrasound Molecular Imaging: Toward Real-Time RPCA-Based Filtering to Differentiate Bound and Free Microbubbles
Hoda S. Hashemi, Dongwoon Hyun, Nathan Nguyen +6
Ultrasound molecular imaging (UMI) is an advanced imaging modality that shows promise in detecting cancer at early stages. It uses microbubbles as contrast agents, which are functi…
Ultrasound Autofocusing: Common Midpoint Phase Error Optimization via Differentiable Beamforming
Walter Simson, Louise Zhuang, Benjamin N. Frey +3
In ultrasound imaging, propagation of an acoustic wavefront through heterogeneous media causes phase aberrations that degrade the coherence of the reflected wavefront, leading to r…