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The high prevalence of cardiovascular diseases (CVDs) calls for accessible and cost-effective continuous cardiac monitoring tools. Despite Electrocardiography (ECG) being the gold standard, continuous monitoring remains a challenge, leading…

信号处理 · 电气工程与系统科学 2023-12-29 Debaditya Shome , Pritam Sarkar , Ali Etemad

Learning spatiotemporal features is an important task for efficient video understanding especially in medical images such as echocardiograms. Convolutional neural networks (CNNs) and more recent vision transformers (ViTs) are the most…

计算机视觉与模式识别 · 计算机科学 2022-09-12 Rand Muhtaseb , Mohammad Yaqub

Recent advancements in AI have significantly transformed medical imaging, particularly in angiography, by enhancing diagnostic precision and patient care. However existing works are limited in analyzing the aorta and iliac arteries, above…

计算机视觉与模式识别 · 计算机科学 2024-04-29 Vazgen Zohranyan , Vagner Navasardyan , Hayk Navasardyan , Jan Borggrefe , Shant Navasardyan

Mesh reconstruction of the cardiac anatomy from medical images is useful for shape and motion measurements and biophysics simulations to facilitate the assessment of cardiac function and health. However, 3D medical images are often acquired…

图像与视频处理 · 电气工程与系统科学 2024-10-22 Yihao Luo , Dario Sesia , Fanwen Wang , Yinzhe Wu , Wenhao Ding , Jiahao Huang , Fadong Shi , Anoop Shah , Amit Kaural , Jamil Mayet , Guang Yang , ChoonHwai Yap

As PET imaging is accompanied by substantial radiation exposure and cancer risk, reducing radiation dose in PET scans is an important topic. Recently, diffusion models have emerged as the new state-of-the-art generative model to generate…

图像与视频处理 · 电气工程与系统科学 2023-11-30 Huidong Xie , Weijie Gan , Bo Zhou , Xiongchao Chen , Qiong Liu , Xueqi Guo , Liang Guo , Hongyu An , Ulugbek S. Kamilov , Ge Wang , Chi Liu

Generative artificial intelligence (AI) has been playing an important role in various domains. Leveraging its high capability to generate high-fidelity and diverse synthetic data, generative AI is widely applied in diagnostic tasks, such as…

计算机视觉与模式识别 · 计算机科学 2025-11-24 Yifan Jiang , Ahmad Shariftabrizi , Venkata SK. Manem

Phonocardiogram (PCG) analysis is vital for cardiovascular disease diagnosis, yet the scarcity of labeled pathological data hinders the capability of AI systems. To bridge this, we introduce H-LDM, a Hierarchical Latent Diffusion Model for…

机器学习 · 计算机科学 2026-02-13 Chenyang Xu , Siming Li , Hao Wang

Medical image segmentation is a challenging task, made more difficult by many datasets' limited size and annotations. Denoising diffusion probabilistic models (DDPM) have recently shown promise in modelling the distribution of natural…

计算机视觉与模式识别 · 计算机科学 2023-11-14 Margherita Rosnati , Melanie Roschewitz , Ben Glocker

Out-of-distribution (OOD) detection is essential to improve the reliability of machine learning models by detecting samples that do not belong to the training distribution. Detecting OOD samples effectively in certain tasks can pose a…

计算机视觉与模式识别 · 计算机科学 2023-11-02 Divyanshu Mishra , He Zhao , Pramit Saha , Aris T. Papageorghiou , J. Alison Noble

We present a method for unsupervised segmentation of echocardiograms (echo). The method uses an iterative Dijkstra's algorithm, a strategic node selection, and a novel cost matrix formulation based on intensity peak prominence and is thus…

图像与视频处理 · 电气工程与系统科学 2020-10-23 Melissa C. Brindise , Brett A. Meyers , Shelby Kutty , Pavlos P. Vlachos

Chest radiography is an effective screening tool for diagnosing pulmonary diseases. In computer-aided diagnosis, extracting the relevant region of interest, i.e., isolating the lung region of each radiography image, can be an essential step…

图像与视频处理 · 电气工程与系统科学 2022-02-23 Hilda Azimi , Jianxing Zhang , Pengcheng Xi , Hala Asad , Ashkan Ebadi , Stephane Tremblay , Alexander Wong

While deep neural networks (NN) significantly advance image compressed sensing (CS) by improving reconstruction quality, the necessity of training current CS NNs from scratch constrains their effectiveness and hampers rapid deployment.…

计算机视觉与模式识别 · 计算机科学 2025-02-04 Bin Chen , Zhenyu Zhang , Weiqi Li , Chen Zhao , Jiwen Yu , Shijie Zhao , Jie Chen , Jian Zhang

An accurate segmentation of lung nodules in computed tomography (CT) images is critical to lung cancer analysis and diagnosis. However, due to the variety of lung nodules and the similarity of visual characteristics between nodules and…

计算机视觉与模式识别 · 计算机科学 2019-05-22 Haichao Cao , Hong Liu , Enmin Song , Chih-Cheng Hung , Guangzhi Ma , Xiangyang Xu , Renchao Jin , Jianguo Lu

A promising approach for multi-microphone speech separation involves two deep neural networks (DNN), where the predicted target speech from the first DNN is used to compute signal statistics for time-invariant minimum variance…

声音 · 计算机科学 2021-10-04 Zhong-Qiu Wang , Gordon Wichern , Jonathan Le Roux

Accurate segmentation of cardiac chambers in echocardiography sequences is crucial for the quantitative analysis of cardiac function, aiding in clinical diagnosis and treatment. The imaging noise, artifacts, and the deformation and motion…

计算机视觉与模式识别 · 计算机科学 2025-12-12 Rui Wang , Yimu Sun , Jingxing Guo , Huisi Wu , Jing Qin

Echocardiography (echo) is the first imaging modality used when assessing cardiac function. The measurement of functional biomarkers from echo relies upon the segmentation of cardiac structures and deep learning models have been proposed to…

计算机视觉与模式识别 · 计算机科学 2026-04-15 Iman Islam , Esther Puyol-Antón , Bram Ruijsink , Andrew J. Reader , Andrew P. King

Assessing the location and extent of lesions caused by chronic stroke is critical for medical diagnosis, surgical planning, and prognosis. In recent years, with the rapid development of 2D and 3D convolutional neural networks (CNN), the…

图像与视频处理 · 电气工程与系统科学 2021-02-17 Yongjin Zhou , Weijian Huang , Pei Dong , Yong Xia , Shanshan Wang

Background. Functional assessment of right ventricle (RV) using gated myocardial perfusion single-photon emission computed tomography (MPS) heavily relies on the precise extraction of right ventricular contours. In this paper, we present a…

图像与视频处理 · 电气工程与系统科学 2023-12-22 Chen Zhao , Shi Shi , Zhuo He , Cheng Wang , Zhongqiang Zhao , Xinli Li , Yanli Zhou , Weihua Zhou

Medical image segmentation often involves inherent uncertainty due to variations in expert annotations. Capturing this uncertainty is an important goal and previous works have used various generative image models for the purpose of…

计算机视觉与模式识别 · 计算机科学 2025-08-19 Jakob Lønborg Christensen , Morten Rieger Hannemose , Anders Bjorholm Dahl , Vedrana Andersen Dahl

Auscultation for neonates is a simple and non-invasive method of providing diagnosis for cardiovascular and respiratory disease. Such diagnosis often requires high-quality heart and lung sounds to be captured during auscultation. However,…

音频与语音处理 · 电气工程与系统科学 2023-10-27 Yang Yi Poh , Ethan Grooby , Kenneth Tan , Lindsay Zhou , Arrabella King , Ashwin Ramanathan , Atul Malhotra , Mehrtash Harandi , Faezeh Marzbanrad