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Electrocardiography (ECG) signals are frequently degraded by noise, limiting their clinical reliability in both conventional and wearable settings. Existing methods for addressing ECG noise, relying on artifact classification or denoising,…

Signal Processing · Electrical Eng. & Systems 2025-07-23 Tae-Seong Han , Jae-Wook Heo , Hakseung Kim , Cheol-Hui Lee , Hyub Huh , Eue-Keun Choi , Hye Jin Kim , Dong-Joo Kim

Known for their impressive performance in generative modeling, diffusion models are attractive candidates for density-based anomaly detection. This paper investigates different variations of diffusion modeling for unsupervised and…

Machine Learning · Computer Science 2026-05-11 Victor Livernoche , Vineet Jain , Yashar Hezaveh , Siamak Ravanbakhsh

Although existing Sparsely Annotated Object Detection (SAOD) approches have made progress in handling sparsely annotated environments in multispectral domain, where only some pedestrians are annotated, they still have the following…

Computer Vision and Pattern Recognition · Computer Science 2025-01-16 Chan Lee , Seungho Shin , Gyeong-Moon Park , Jung Uk Kim

Event detection improves when events are captured by two different modalities rather than just one. But to train detection systems on multiple modalities is challenging, in particular when there is abundance of unlabelled data but limited…

Sound · Computer Science 2022-11-18 Sumit Kumar , B. Anshuman , Linus Ruettimann , Richard H. R. Hahnloser , Vipul Arora

Magnetic resonance (MR) imaging, including cardiac MR, is prone to domain shift due to variations in imaging devices and acquisition protocols. This challenge limits the deployment of trained AI models in real-world scenarios, where…

Computer Vision and Pattern Recognition · Computer Science 2025-08-11 Xin Ci Wong , Duygu Sarikaya , Kieran Zucker , Marc De Kamps , Nishant Ravikumar

Many unsupervised domain adaptive (UDA) person re-identification (ReID) approaches combine clustering-based pseudo-label prediction with feature fine-tuning. However, because of domain gap, the pseudo-labels are not always reliable and…

Computer Vision and Pattern Recognition · Computer Science 2020-12-18 Kecheng Zheng , Cuiling Lan , Wenjun Zeng , Zhizheng Zhang , Zheng-Jun Zha

While deep learning holds great promise for disease diagnosis and prognosis in cardiac magnetic resonance imaging, its progress is often constrained by highly imbalanced and biased training datasets. To address this issue, we propose a…

Image and Video Processing · Electrical Eng. & Systems 2025-09-09 Grzegorz Skorupko , Richard Osuala , Zuzanna Szafranowska , Kaisar Kushibar , Vien Ngoc Dang , Nay Aung , Steffen E Petersen , Karim Lekadir , Polyxeni Gkontra

Applying machine learning to real-world medical data, e.g. from hospital archives, has the potential to revolutionize disease detection in brain images. However, detecting pathology in such heterogeneous cohorts is a difficult challenge.…

Image and Video Processing · Electrical Eng. & Systems 2025-08-06 Ana Lawry Aguila , Ayodeji Ijishakin , Juan Eugenio Iglesias , Tomomi Takenaga , Yukihiro Nomura , Takeharu Yoshikawa , Osamu Abe , Shouhei Hanaoka

Accurate Computer-Assisted Diagnosis, relying on large-scale annotated pathological images, can alleviate the risk of overlooking the diagnosis. Unfortunately, in medical imaging, most available datasets are small/fragmented. To tackle…

Computer Vision and Pattern Recognition · Computer Science 2019-08-14 Changhee Han , Yoshiro Kitamura , Akira Kudo , Akimichi Ichinose , Leonardo Rundo , Yujiro Furukawa , Kazuki Umemoto , Yuanzhong Li , Hideki Nakayama

Supervised learning-based segmentation methods typically require a large number of annotated training data to generalize well at test time. In medical applications, curating such datasets is not a favourable option because acquiring a large…

Image and Video Processing · Electrical Eng. & Systems 2020-11-20 Krishna Chaitanya , Neerav Karani , Christian F. Baumgartner , Ertunc Erdil , Anton Becker , Olivio Donati , Ender Konukoglu

Cell detection is an important task in biomedical research. Recently, deep learning methods have made it possible to improve the performance of cell detection. However, a detection network trained with training data under a specific…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Hyeonwoo Cho , Kazuya Nishimura , Kazuhide Watanabe , Ryoma Bise

Data augmentation, by the introduction of auxiliary variables, has become an ubiquitous technique to improve convergence properties, simplify the implementation or reduce the computational time of inference methods such as Markov chain…

Methodology · Statistics 2020-09-30 Maxime Vono , Nicolas Dobigeon , Pierre Chainais

Data Augmentation (DA) -- enriching training data by adding synthetic samples -- is a technique widely adopted in Computer Vision (CV) and Natural Language Processing (NLP) tasks to improve models performance. Yet, DA has struggled to gain…

Machine Learning · Computer Science 2024-01-24 Chao Wang , Alessandro Finamore , Pietro Michiardi , Massimo Gallo , Dario Rossi

Current long-tailed semi-supervised learning methods assume that labeled data exhibit a long-tailed distribution, and unlabeled data adhere to a typical predefined distribution (i.e., long-tailed, uniform, or inverse long-tailed). However,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-12 Yaxin Hou , Bo Han , Yuheng Jia , Hui Liu , Junhui Hou

Recently, diabetic retinopathy (DR) screening utilizing ultra-wide optical coherence tomography angiography (UW-OCTA) has been used in clinical practices to detect signs of early DR. However, developing a deep learning-based DR analysis…

Image and Video Processing · Electrical Eng. & Systems 2022-10-19 Gitaek Kwon , Eunjin Kim , Sunho Kim , Seongwon Bak , Minsung Kim , Jaeyoung Kim

Unsupervised domain adaptation (UDA) methods intend to reduce the gap between source and target domains by using unlabeled target domain and labeled source domain data, however, in the medical domain, target domain data may not always be…

Image and Video Processing · Electrical Eng. & Systems 2022-02-01 Mingxuan Gu , Sulaiman Vesal , Ronak Kosti , Andreas Maier

We propose a unified diffusion model-based correction and super-resolution method to enhance the fidelity and resolution of diverse low-quality data through a two-step pipeline. First, the correction step employs a novel enhanced stochastic…

Numerical Analysis · Mathematics 2025-05-15 Wuzhe Xu , Yulong Lu , Sifan Wang , Tong-Rui Liu

Data Augmentation is a common technique used to enhance the performance of deep learning models by expanding the training dataset. Automatic Data Augmentation (ADA) methods are getting popular because of their capacity to generate policies…

Machine Learning · Computer Science 2024-04-02 Tien-Yu Chang , Hao Dai , Vincent S. Tseng

Continuous efforts are being made to advance anomaly detection in various manufacturing processes to increase the productivity and safety of industrial sites. Deep learning replaced rule-based methods and recently emerged as a promising…

Machine Learning · Computer Science 2024-06-28 Kukjin Choi , Jihun Yi , Jisoo Mok , Sungroh Yoon

Data augmentation (DA) can significantly strengthen the electroencephalogram (EEG)-based seizure prediction methods. However, existing DA approaches are just the linear transformations of original data and cannot explore the feature space…

Signal Processing · Electrical Eng. & Systems 2024-12-10 Kai Shu , Le Wu , Yuchang Zhao , Aiping Liu , Ruobing Qian , Xun Chen
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