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Integrating deep learning with clinical expertise holds great potential for addressing healthcare challenges and empowering medical professionals with improved diagnostic tools. However, the need for annotated medical images is often an…

计算机视觉与模式识别 · 计算机科学 2023-11-16 Romain Hardy , Joe Klepich , Ryan Mitchell , Steve Hall , Jericho Villareal , Cornelia Ilin

We introduce ACES, a method for scalable noise metrology of quantum circuits that stands for Averaged Circuit Eigenvalue Sampling. It simultaneously estimates the individual error rates of all the gates in collections of quantum circuits,…

量子物理 · 物理学 2024-03-26 Steven T. Flammia

Purpose: Spectral imaging is a method in medical x-ray imaging to extract information about the object constituents by the material-specific energy dependence of x-ray attenuation. The authors have investigated a photon-counting spectral…

When using an electron microscope for imaging of particles embedded in vitreous ice, the objective lens will inevitably corrupt the projection images. This corruption manifests as a band-pass filter on the micrograph. In addition, it causes…

图像与视频处理 · 电气工程与系统科学 2020-01-29 Ayelet Heimowitz , Joakim Andén , Amit Singer

3D reconstruction of the liver for volumetry is important for qualitative analysis and disease diagnosis. Liver volumetry using ultrasound (US) scans, although advantageous due to less acquisition time and safety, is challenging due to the…

Background and objective: In this paper, a modified U-Net based framework is presented, which leverages techniques from Squeeze-and-Excitation (SE) block, Atrous Spatial Pyramid Pooling (ASPP) and residual learning for accurate and robust…

图像与视频处理 · 电气工程与系统科学 2021-07-20 Jinke Wang , Peiqing Lv , Haiying Wang , Changfa Shi

In this paper, we propose a novel algorithm to optimize the energy-efficiency (EE) of orthogonal frequency division multiplexing-based cognitive radio systems under channel uncertainties. We formulate an optimization problem that guarantees…

信号处理 · 电气工程与系统科学 2019-02-11 Ebrahim Bedeer , Osama Amin , Octavia A. Dobre , Mohamed H. Ahmed , Kareem E. Baddour

Magnetic resonance imaging (MRI) is commonly used for brain tumor segmentation, which is critical for patient evaluation and treatment planning. To reduce the labor and expertise required for labeling, weakly-supervised semantic…

计算机视觉与模式识别 · 计算机科学 2023-12-04 Yu-Jen Chen , Xinrong Hu , Yiyu Shi , Tsung-Yi Ho

Simultaneous multi-index quantification, segmentation, and uncertainty estimation of liver tumors on multi-modality non-contrast magnetic resonance imaging (NCMRI) are crucial for accurate diagnosis. However, existing methods lack an…

图像与视频处理 · 电气工程与系统科学 2023-07-06 Xiaojiao Xiao , Qinmin Hu , Guanghui Wang

Counterfactual explanations (CEs) aim to enhance the interpretability of machine learning models by illustrating how alterations in input features would affect the resulting predictions. Common CE approaches require an additional model and…

计算机视觉与模式识别 · 计算机科学 2024-10-02 Matan Atad , David Schinz , Hendrik Moeller , Robert Graf , Benedikt Wiestler , Daniel Rueckert , Nassir Navab , Jan S. Kirschke , Matthias Keicher

It has always been a big challenge to identify subtle changes in Electroencephalogram (EEG) signals. Minor differences often lead to vital decisions, for example, which grade a certain tumour belong to or whether a haemorrhage can result in…

系统与控制 · 电气工程与系统科学 2022-06-01 Debojyoti Seth

Structural and mechanical differences between cancerous and healthy tissue give rise to variations in macroscopic properties such as visual appearance and elastic modulus that show promise as signatures for early cancer detection. Atomic…

PET requires accurate, precise, and efficient scatter correction techniques. Conventional scatter estimation typically relies on tail-fitted single-scatter simulation (SSS) strategy. However, the accuracy of tail-fitted SSS is limited, for…

In compressed sensing, measurements are typically contaminated by additive noise, and therefore, information about the noise variance is often needed to design algorithms. In this paper, we propose a method for estimating the unknown noise…

信号处理 · 电气工程与系统科学 2025-03-24 Ryo Hayakawa

The area under the curve (AUC) of the mean cumulative function (MCF) has recently been introduced as a novel estimand for evaluating treatment effects in recurrent event settings, offering an alternative to the commonly used…

统计方法学 · 统计学 2025-07-22 Jiren Sun , Tuo Wang , Yanyao Yi , Ting Ye , Jun Shao , Yu Du

Complex weights factors (CWFs) that fully define the incident beam independent of the presence of a scatterer, may be represented mathematically by either a partial-wave series expansion (PWSE) of multipoles, or the method of angular…

经典物理 · 物理学 2014-10-02 F. G. Mitri

Objectives: To develop and evaluate a radiomics machine learning model for detecting liver fibrosis on CT of the liver. Methods: For this retrospective, single-centre study, radiomic features were extracted from Regions of Interest (ROIs)…

计算机视觉与模式识别 · 计算机科学 2024-02-27 Jay J. Yoo , Khashayar Namdar , Sean Carey , Sandra E. Fischer , Chris McIntosh , Farzad Khalvati , Patrik Rogalla

Spectral imaging is a method in medical x-ray imaging to extract information about the object constituents by the material-specific energy dependence of x-ray attenuation. Contrast-enhanced spectral imaging has been thoroughly investigated,…

医学物理 · 物理学 2021-01-26 Erik Fredenberg , Magnus Aslund , Bjorn Cederstrom , Mats Lundqvist , Mats Danielsson

Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a minimally invasive imaging technique which can be used for characterizing tumor biology and tumor response to radiotherapy. Pharmacokinetic (PK) estimation is widely used…

图像与视频处理 · 电气工程与系统科学 2018-03-06 Xia Zhu , Dipanjan Sengupta , Andrew Beers , Kalpathy-Cramer Jayashree , Theodore L. Willke

Ambient backscatter communication (AmBC) leverages the existing ambient radio frequency (RF) environment to implement communication with battery-free devices. One critical challenge of AmBC systems is signal recovery because the transmitted…

信号处理 · 电气工程与系统科学 2022-10-19 Wenjing Liu , Shanpu Shen , Danny H. K. Tsang , Ranjan K. Mallik , Ross Murch