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Deep learning-based image reconstruction methods have achieved promising results across multiple MRI applications. However, most approaches require large-scale fully-sampled ground truth data for supervised training. Acquiring fully-sampled…

图像与视频处理 · 电气工程与系统科学 2020-09-01 Elizabeth K. Cole , John M. Pauly , Shreyas S. Vasanawala , Frank Ong

Every field of Science is undergoing unprecedented changes in the discovery process, and Astronomy has been a main player in this transition since the beginning. The ongoing and future large and complex multi-messenger sky surveys impose a…

天体物理仪器与方法 · 物理学 2021-05-12 Maurizio D'Addona , Giuseppe Riccio , Stefano Cavuoti , Crescenzo Tortora , Massimo Brescia

Although self-supervised learning enables us to bootstrap the training by exploiting unlabeled data, the generic self-supervised methods for natural images do not sufficiently incorporate the context. For medical images, a desirable method…

图像与视频处理 · 电气工程与系统科学 2022-07-08 Li Sun , Ke Yu , Kayhan Batmanghelich

High-resolution (HR) MRI scans obtained from research-grade medical centers provide precise information about imaged tissues. However, routine clinical MRI scans are typically in low-resolution (LR) and vary greatly in contrast and spatial…

图像与视频处理 · 电气工程与系统科学 2023-08-25 Jueqi Wang , Jacob Levman , Walter Hugo Lopez Pinaya , Petru-Daniel Tudosiu , M. Jorge Cardoso , Razvan Marinescu

Unsupervised anomaly detection using deep learning has garnered significant research attention due to its broad applicability, particularly in medical imaging where labeled anomalous data are scarce. While earlier approaches leverage…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Chunlei Li , Yilei Shi , Jingliang Hu , Xiao Xiang Zhu , Lichao Mou

Recent advances in optical coherence tomography such as the development of high speed ultrahigh resolution scanners and corresponding signal processing techniques may reveal new potential biomarkers in retinal diseases. Newly visible…

Machine learning-based medical anomaly detection is an important problem that has been extensively studied. Numerous approaches have been proposed across various medical application domains and we observe several similarities across these…

机器学习 · 计算机科学 2021-04-14 Tharindu Fernando , Harshala Gammulle , Simon Denman , Sridha Sridharan , Clinton Fookes

Deep generative modeling has emerged as a powerful tool for synthesizing realistic medical images, driving advances in medical image analysis, disease diagnosis, and treatment planning. This chapter explores various deep generative models…

图像与视频处理 · 电气工程与系统科学 2024-10-24 Paul Friedrich , Yannik Frisch , Philippe C. Cattin

Multimodal deep learning has been used to predict clinical endpoints and diagnoses from clinical routine data. However, these models suffer from scaling issues: they have to learn pairwise interactions between each piece of information in…

Pathological anomalies exhibit diverse appearances in medical imaging, making it difficult to collect and annotate a representative amount of data required to train deep learning models in a supervised setting. Therefore, in this work, we…

图像与视频处理 · 电气工程与系统科学 2023-07-18 Mariana-Iuliana Georgescu

Unsupervised anomaly detection (UAD) aims to find anomalous images by optimising a detector using a training set that contains only normal images. UAD approaches can be based on reconstruction methods, self-supervised approaches, and…

图像与视频处理 · 电气工程与系统科学 2023-08-23 Yu Tian , Guansong Pang , Yuyuan Liu , Chong Wang , Yuanhong Chen , Fengbei Liu , Rajvinder Singh , Johan W Verjans , Mengyu Wang , Gustavo Carneiro

Traditional deep learning models often lack annotated data, especially in cross-domain applications such as anomaly detection, which is critical for early disease diagnosis in medicine and defect detection in industry. To address this…

计算机视觉与模式识别 · 计算机科学 2026-02-06 Wahyu Rahmaniar , Kenji Suzuki

In this paper, we propose the Adversarial Denoising Diffusion Model (ADDM). The ADDM is based on the Denoising Diffusion Probabilistic Model (DDPM) but complementarily trained by adversarial learning. The proposed adversarial learning is…

图像与视频处理 · 电气工程与系统科学 2023-12-08 Jongmin Yu , Hyeontaek Oh , Jinhong Yang

The Segment Anything Model (SAM) has achieved a notable success in two-dimensional image segmentation in natural images. However, the substantial gap between medical and natural images hinders its direct application to medical image…

计算机视觉与模式识别 · 计算机科学 2024-04-17 Quan Quan , Fenghe Tang , Zikang Xu , Heqin Zhu , S. Kevin Zhou

Magnetic resonance imaging (MRI) is a common and life-saving medical imaging technique. However, acquiring high signal-to-noise ratio MRI scans requires long scan times, resulting in increased costs and patient discomfort, and decreased…

图像与视频处理 · 电气工程与系统科学 2023-02-07 Tiange Xiang , Mahmut Yurt , Ali B Syed , Kawin Setsompop , Akshay Chaudhari

Reconstruction-based methods play an important role in unsupervised anomaly detection in images. Ideally, we expect a perfect reconstruction for normal samples and poor reconstruction for abnormal samples. Since the generalizability of deep…

计算机视觉与模式识别 · 计算机科学 2021-07-29 Jinlei Hou , Yingying Zhang , Qiaoyong Zhong , Di Xie , Shiliang Pu , Hong Zhou

This paper presents a novel unsupervised segmentation method for 3D medical images. Convolutional neural networks (CNNs) have brought significant advances in image segmentation. However, most of the recent methods rely on supervised…

计算机视觉与模式识别 · 计算机科学 2018-04-13 Takayasu Moriya , Holger R. Roth , Shota Nakamura , Hirohisa Oda , Kai Nagara , Masahiro Oda , Kensaku Mori

Surface anomaly classification is critical for manufacturing system fault diagnosis and quality control. However, the following challenges always hinder accurate anomaly classification in practice: (i) Anomaly patterns exhibit intra-class…

机器学习 · 统计学 2025-02-18 Xuanming Cao , Chengyu Tao , Juan Du

Unsupervised Anomaly Detection (UAD) methods rely on healthy data distributions to identify anomalies as outliers. In brain MRI, a common approach is reconstruction-based UAD, where generative models reconstruct healthy brain MRIs, and…

图像与视频处理 · 电气工程与系统科学 2024-07-18 Finn Behrendt , Debayan Bhattacharya , Robin Mieling , Lennart Maack , Julia Krüger , Roland Opfer , Alexander Schlaefer

Recent advances in deep learning methods have come to define the state-of-the-art for many medical imaging applications, surpassing even human judgment in several tasks. Those models, however, when trained to reduce the empirical risk on a…

计算机视觉与模式识别 · 计算机科学 2019-01-14 Christian S. Perone , Pedro Ballester , Rodrigo C. Barros , Julien Cohen-Adad