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Ultrafast optical imaging has enabled direct observation of femtosecond-nanosecond dynamics, yet three-dimensional (3D) dynamic measurements at high numerical aperture (NA) remain hindered by the intrinsically shallow depth of field (DoF)…

Intracranial hemorrhage (ICH) is a critical medical emergency caused by the rupture of cerebral blood vessels, leading to internal bleeding within the skull. Accurate and timely classification of hemorrhage subtypes is essential for…

Image and Video Processing · Electrical Eng. & Systems 2026-02-10 Mehdi Hosseini Chagahi , Md. Jalil Piran , Niloufar Delfan , Behzad Moshiri , Jaber Hatam Parikhan

Coronary artery calcification (CAC) is a strong and independent predictor of cardiovascular disease (CVD). However, manual assessment of CAC often requires radiological expertise, time, and invasive imaging techniques. The purpose of this…

Computer Vision and Pattern Recognition · Computer Science 2024-02-16 Andrew M. Nguyen , Jianfei Liu , Tejas Sudharshan Mathai , Peter C. Grayson , Ronald M. Summers

We propose a fully automated algorithm based on a deep learning framework enabling screening of a coronary computed tomography angiography (CCTA) examination for confident detection of the presence or absence of coronary artery…

Image and Video Processing · Electrical Eng. & Systems 2020-06-09 Sema Candemir , Richard D. White , Mutlu Demirer , Vikash Gupta , Matthew T. Bigelow , Luciano M. Prevedello , Barbaros S. Erdal

One of the methods for stratifying different molecular classes of breast cancer is the Nottingham Prognostic Index Plus (NPI+) which uses breast cancer relevant biomarkers to stain tumour tissues prepared on tissue microarray (TMA). To…

Computer Vision and Pattern Recognition · Computer Science 2019-01-15 Jingxin Liu , Bolei Xu , Chi Zheng , Yuanhao Gong , Jon Garibaldi , Daniele Soria , Andew Green , Ian O. Ellis , Wenbin Zou , Guoping Qiu

Heart failure hospitalization is a severe burden on healthcare. How to predict and therefore prevent readmission has been a significant challenge in outcomes research. To address this, we propose a deep learning approach to predict…

Computation and Language · Computer Science 2019-12-24 Xiong Liu , Yu Chen , Jay Bae , Hu Li , Joseph Johnston , Todd Sanger

Background: We aimed to quantify hepatic vessel volumes across chronic liver disease stages and healthy controls using deep learning-based magnetic resonance imaging (MRI) analysis, and assess correlations with biomarkers for liver…

3D time-of-flight (ToF) imaging is used in a variety of applications such as augmented reality (AR), computer interfaces, robotics and autonomous systems. Single-photon avalanche diodes (SPADs) are one of the enabling technologies providing…

Image and Video Processing · Electrical Eng. & Systems 2021-10-13 Germán Mora-Martín , Alex Turpin , Alice Ruget , Abderrahim Halimi , Robert Henderson , Jonathan Leach , Istvan Gyongy

The accurate classification of gastrointestinal diseases from endoscopic and histopathological imagery remains a significant challenge in medical diagnostics, mainly due to the vast data volume and subtle variation in inter-class visuals.…

Image and Video Processing · Electrical Eng. & Systems 2026-04-28 Md Assaduzzaman , Nushrat Jahan Oyshi , Eram Mahamud

. In this paper, an effective computer-aided diagnosis (CAD) system is presented to detect MI signals using the convolution neural network (CNN) for urban healthcare in smart cities. Two types of transfer learning techniques are employed to…

The vast majority of cardiovascular diseases may be preventable if early signs and risk factors are detected. Cardiovascular monitoring with body-worn sensor devices like sensor patches allows for the detection of such signs while…

Out-of-focus microscopy lens in digital pathology is a critical bottleneck in high-throughput Whole Slide Image (WSI) scanning platforms, for which pixel-level automated Focus Quality Assessment (FQA) methods are highly desirable to help…

Image and Video Processing · Electrical Eng. & Systems 2020-10-02 Zhongling Wang , Mahdi S. Hosseini , Adyn Miles , Konstantinos N. Plataniotis , Zhou Wang

From a perspective of feature matching, optical flow estimation for event cameras involves identifying event correspondences by comparing feature similarity across accompanying event frames. In this work, we introduces an effective and…

Computer Vision and Pattern Recognition · Computer Science 2025-01-23 Hongzhi You , Yijun Cao , Wei Yuan , Fanjun Wang , Ning Qiao , Yongjie Li

Non-invasive imaging of deep blood vessels for mapping hemodynamics remains an open quest in biomedical optical imaging. Although pure optical imaging techniques offer rich optical contrast of blood and have been reported to measure blood…

Medical Physics · Physics 2022-09-20 Yang Zhang , Joshua Olick-Gibson , Anjul Khadria , Lihong V. Wang

Photoplethysmography (PPG) is a non-invasive technology that measures changes in blood volume in the microvascular bed of tissue. It is commonly used in medical devices such as pulse oximeters and wrist worn heart rate monitors to monitor…

A comprehensive assessment of retinal health demands reliable and precise methods to measure localized blood perfusion. Despite considerable advancements in imaging techniques, such as indocyanine green and fluorescein angiography, along…

Medical Physics · Physics 2024-03-15 Michael Atlan

Photoplethysmography (PPG) sensors allow for non-invasive and comfortable heart-rate (HR) monitoring, suitable for compact wrist-worn devices. Unfortunately, Motion Artifacts (MAs) severely impact the monitoring accuracy, causing high…

Terahertz (THz) waves are a highly sensitive probe of free carrier concentrations in semiconducting materials. However, most experiments operate in the far-field, which precludes the observation of nanoscale features that affect the…

While the pathophysiology underlying the COVID-19 infection remains incompletely understood, there is growing evidence to indicate that it is closely correlated to hypercoagulation among severely ill patients. Doctors may choose for use…

Microfluidic systems with integrated sensors are ideal platforms to study and emulate processes such as complex multiphase flow and reactive transport in porous media, numerical modeling of bulk systems in medicine, and in engineering.…