Approximating the ideal observer for joint signal detection and localization tasks by use of supervised learning methods

W Zhou, H Li, MA Anastasio - IEEE transactions on medical …, 2020 - ieeexplore.ieee.org
Medical imaging systems are commonly assessed and optimized by use of objective
measures of image quality (IQ). The Ideal Observer (IO) performance has been advocated to …

Ideal observer computation by use of Markov-chain Monte Carlo with generative adversarial networks

W Zhou, U Villa, MA Anastasio - IEEE transactions on medical …, 2023 - ieeexplore.ieee.org
Medical imaging systems are often evaluated and optimized via objective, or task-specific,
measures of image quality (IQ) that quantify the performance of an observer on a specific …

Markov-chain monte carlo approximation of the ideal observer using generative adversarial networks

W Zhou, MA Anastasio - Medical Imaging 2020: Image …, 2020 - spiedigitallibrary.org
The Ideal Observer (IO) performance has been advocated when optimizing medical imaging
systems for signal detection tasks. However, analytical computation of the IO test statistic is …

Task-based performance evaluation of deep neural network-based image denoising

K Li, W Zhou, H Li… - Medical Imaging 2021 …, 2021 - spiedigitallibrary.org
Deep neural network (DNN)-based image denoising methods have been proposed for use
with medical images. These methods are commonly optimized and evaluated by use of …

Supervised learning-based ideal observer approximation for joint detection and estimation tasks

K Li, W Zhou, H Li… - Medical Imaging 2021 …, 2021 - spiedigitallibrary.org
The ideal observer (IO) sets an upper performance limit among all observers and has been
advocated for use in assessing and optimizing imaging systems. For joint detection …

Convolutional Neural Network Model Observers Discount Signal-like Anatomical Structures During Search in Virtual Digital Breast Tomosynthesis Phantoms

A Jonnalagadda, BB Barufaldi, ADA Maidment… - arXiv preprint arXiv …, 2024 - arxiv.org
Model observers are computational tools to evaluate and optimize task-based medical
image quality. Linear model observers, such as the Channelized Hotelling Observer (CHO) …

Learning numerical observers using unsupervised domain adaptation

S He, W Zhou, H Li… - Medical Imaging 2020 …, 2020 - spiedigitallibrary.org
Medical imaging systems are commonly assessed by use of objective image quality
measures. Supervised deep learning methods have been investigated to implement …

A deep Q-learning method for optimizing visual search strategies in backgrounds of dynamic noise

W Zhou, MP Eckstein - Medical Imaging 2022: Image …, 2022 - spiedigitallibrary.org
Humans process visual information with varying resolution (foveated visual system) and
explore images by orienting through eye movements the high-resolution fovea to points of …

Progressively-growing ambientgans for learning stochastic object models from imaging measurements

W Zhou, S Bhadra, FJ Brooks, H Li… - … Imaging 2020: Image …, 2020 - spiedigitallibrary.org
The objective optimization of medical imaging systems requires full characterization of all
sources of randomness in the measured data, which includes the variability within the …

[HTML][HTML] Evaluation of convolutional neural networks for search in 1/f 2.8 filtered noise and digital breast tomosynthesis phantoms

A Jonnalagadda, MA Lago, B Barufaldi… - Proceedings of SPIE …, 2020 - ncbi.nlm.nih.gov
With the advent of powerful convolutional neural networks (CNNs), recent studies have
extended early applications of neural networks to imaging tasks thus making CNNs a …