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This paper presents a comparative analysis of deep learning strategies for detecting hypertensive retinopathy from fundus images, a central task in the HRDC challenge~\cite{qian2025hrdc}. We investigate three distinct approaches: a custom…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Yanqiao Zhu

Positron emission tomography (PET) is an important functional medical imaging technique often used in the evaluation of certain brain disorders, whose reconstruction problem is ill-posed. The vast majority of reconstruction methods in PET…

Image and Video Processing · Electrical Eng. & Systems 2023-06-09 Tin Vlašić , Tomislav Matulić , Damir Seršić

Computed tomography (CT) is a widely used imaging modality for medical diagnosis and treatment. In electroencephalography (EEG), CT imaging is necessary for co-registering with magnetic resonance imaging (MRI) and for creating more accurate…

Medical Physics · Physics 2019-06-12 Andreas D. Lauritzen , Xenophon Papademetris , Sergei Turovets , John A. Onofrey

The standard non-invasive imaging technique used to assess the severity and extent of Coronary Artery Disease (CAD) is Coronary Computed Tomography Angiography (CCTA). However, manual grading of each patient's CCTA according to the…

Medical image processing is one of the most important topics in the field of the Internet of Medical Things (IoMT). Recently, deep learning methods have carried out state-of-the-art performances on medical image tasks. However, conventional…

Image and Video Processing · Electrical Eng. & Systems 2020-12-14 Shuteng Niu , Meryl Liu , Yongxin Liu , Jian Wang , Houbing Song

Multiple objective assessment of image-quality-based studies have reported that several deep-learning-based denoising methods show limited performance on signal-detection tasks. Our goal was to investigate the reasons for this limited…

Medical Physics · Physics 2022-03-04 Zitong Yu , Md Ashequr Rahman , Abhinav K. Jha

Modern machine learning pipelines, in particular those based on deep learning (DL) models, require large amounts of labeled data. For classification problems, the most common learning paradigm consists of presenting labeled examples during…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Jacopo Teneggi , Paul H. Yi , Jeremias Sulam

Cochlear implants (CIs) are neural prosthetics used to treat patients with severe-to-profound hearing loss. Patient-specific modeling of CI stimulation of the auditory nerve fiber (ANFs) can help audiologists improve the CI programming.…

Image and Video Processing · Electrical Eng. & Systems 2024-02-19 Hannah G. Mason , Jack H. Noble

With the COVID-19 global pandemic, computer-assisted diagnoses of medical images have gained much attention, and robust methods of Semantic Segmentation of Computed Tomography (CT) became highly desirable. Semantic Segmentation of CT is one…

Computer Vision and Pattern Recognition · Computer Science 2022-05-20 Bruno A. Krinski , Daniel V. Ruiz , Eduardo Todt

In SPECT, list-mode (LM) format allows storing data at higher precision compared to binned data. There is significant interest in investigating whether this higher precision translates to improved performance on clinical tasks. Towards this…

Medical Physics · Physics 2021-02-12 Md Ashequr Rahman , Abhinav K. Jha

The analysis of multi-modality positron emission tomography and computed tomography (PET-CT) images for computer aided diagnosis applications requires combining the sensitivity of PET to detect abnormal regions with anatomical localization…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Ashnil Kumar , Michael Fulham , Dagan Feng , Jinman Kim

Noninvasive X-ray imaging of nanoscale three-dimensional objects, e.g. integrated circuits (ICs), generally requires two types of scanning: ptychographic, which is translational and returns estimates of complex electromagnetic field through…

Image and Video Processing · Electrical Eng. & Systems 2024-08-15 Iksung Kang , Ziling Wu , Yi Jiang , Yudong Yao , Junjing Deng , Jeffrey Klug , Stefan Vogt , George Barbastathis

Abdominal aortic aneurysm (AAA) is a vascular disease in which a section of the aorta enlarges, weakening its walls and potentially rupturing the vessel. Abdominal ultrasound has been utilized for diagnostics, but due to its limited image…

Image and Video Processing · Electrical Eng. & Systems 2022-08-12 Yordanka Velikova , Walter Simson , Mehrdad Salehi , Mohammad Farid Azampour , Philipp Paprottka , Nassir Navab

Dopamine transporter (DAT) imaging is commonly used for monitoring Parkinson's disease (PD), where striatal DAT uptake amount is computed to assess PD severity. However, DAT imaging has a high cost and the risk of radiance exposure and is…

Image and Video Processing · Electrical Eng. & Systems 2025-04-08 Walid Abdullah Al , Il Dong Yun , Yun Jung Bae

Continually learning to segment more and more types of image regions is a desired capability for many intelligent systems. However, such continual semantic segmentation suffers from the same catastrophic forgetting issue as in continual…

Computer Vision and Pattern Recognition · Computer Science 2023-02-14 Yiqiao Qiu , Yixing Shen , Zhuohao Sun , Yanchong Zheng , Xiaobin Chang , Weishi Zheng , Ruixuan Wang

Computed Tomography (CT) imposes risk on the patients due to its inherent X-ray radiation, stimulating the development of low-dose CT (LDCT) imaging methods. Lowering the radiation dose reduces the health risks but leads to noisier…

Image and Video Processing · Electrical Eng. & Systems 2022-11-03 Elvira Zainulina , Alexey Chernyavskiy , Dmitry V. Dylov

CT perfusion imaging (CTP) plays an important role in decision making for the treatment of acute ischemic stroke with large vessel occlusion. Since the CT perfusion scan time is approximately one minute, the patient is exposed to a…

Medical Physics · Physics 2021-11-04 Vojtěch Kulvait , Philip Hoelter , Arnd Doerfler , Georg Rose

Despite the indispensable role of X-ray computed tomography (CT) in diagnostic medicine field, the associated ionizing radiation is still a major concern considering that it may cause genetic and cancerous diseases. Decreasing the exposure…

Image and Video Processing · Electrical Eng. & Systems 2021-06-09 Ti Bai , Dan Nguyen , Biling Wang , Steve Jiang

Deep convolutional neural networks (DCNN) have demonstrated its capability to convert MR image to pseudo CT for PET attenuation correction in PET/MRI. Conventionally, attenuated events are corrected in sinogram space using attenuation maps…

Computer Vision and Pattern Recognition · Computer Science 2019-05-22 Jaewon Yang , Dookun Park , Jae Ho Sohn , Zhen Jane Wang , Grant T. Gullberg , Youngho Seo

Contrast-enhanced computed tomography angiograms (CTAs) are widely used in cardiovascular imaging to obtain a non-invasive view of arterial structures. However, contrast agents are associated with complications at the injection site as well…

Image and Video Processing · Electrical Eng. & Systems 2020-03-04 Anirudh Chandrashekar , Ashok Handa , Natesh Shivakumar , Pierfrancesco Lapolla , Vicente Grau , Regent Lee