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Multimodal MR images can provide complementary information for accurate brain tumor segmentation. However, it's common to have missing imaging modalities in clinical practice. Since there exists a strong correlation between multi…

图像与视频处理 · 电气工程与系统科学 2021-04-21 Tongxue Zhou , Stéphane Canu , Pierre Vera , Su Ruan

Multimodal Magnetic Resonance Imaging (MRI) provides essential complementary information for analyzing brain tumor subregions. While methods using four common MRI modalities for automatic segmentation have shown success, they often face…

图像与视频处理 · 电气工程与系统科学 2024-11-14 Runze Cheng , Zhongao Sun , Ye Zhang , Chun Li

Temporal causal representation learning is a powerful tool for uncovering complex patterns in observational studies, which are often represented as low-dimensional time series. However, in many real-world applications, data are…

机器学习 · 计算机科学 2025-07-21 Jianhong Chen , Meng Zhao , Mostafa Reisi Gahrooei , Xubo Yue

Accurate segmentation of brain tumors from magnetic resonance imaging (MRI) is clinically relevant in diagnoses, prognoses and surgery treatment, which requires multiple modalities to provide complementary morphological and physiopathologic…

图像与视频处理 · 电气工程与系统科学 2021-06-30 Yixin Wang , Yang Zhang , Yang Liu , Zihao Lin , Jiang Tian , Cheng Zhong , Zhongchao Shi , Jianping Fan , Zhiqiang He

Disentangled representation is a powerful technique to tackle domain shift problem in medical image analysis in unsupervised domain adaptation setting.However, previous methods only focus on exacting domain-invariant feature and ignore…

图像与视频处理 · 电气工程与系统科学 2023-03-07 Shuai Wang , Rui Li

Recently in the field of unsupervised representation learning, strong identifiability results for disentanglement of causally-related latent variables have been established by exploiting certain side information, such as class labels, in…

机器学习 · 计算机科学 2022-10-26 Weiran Yao , Guangyi Chen , Kun Zhang

Synthesizing longitudinal medical images at controllable disease stages while preserving patient-specific anatomy is hindered by the entanglement of pathological textures and structural features. We address this challenge for ulcerative…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Umut Dundar , Alptekin Temizel

Learning meaningful representations from medical time series (MedTS) such as ECG or EEG signals is a critical challenge. These signals are often high-dimensional, variable-length and rife with noise. Existing self-supervised approaches,…

机器学习 · 计算机科学 2026-05-04 Huayu Li , ZhengXiao He , Xiwen Chen , Jingjing Wang , Siyuan Tian , Jinghao Wen , Ao Li

Deep learning-based brain tumor segmentation (BTS) models for multi-modal MRI images have seen significant advancements in recent years. However, a common problem in practice is the unavailability of some modalities due to varying scanning…

计算机视觉与模式识别 · 计算机科学 2024-06-17 Weide Liu , Jingwen Hou , Xiaoyang Zhong , Huijing Zhan , Jun Cheng , Yuming Fang , Guanghui Yue

Analyzing temporal developments is crucial for the accurate prognosis of many medical conditions. Temporal changes that occur over short time scales are key to assessing the health of physiological functions, such as the cardiac cycle.…

Time-series representation learning is a fundamental task for time-series analysis. While significant progress has been made to achieve accurate representations for downstream applications, the learned representations often lack…

机器学习 · 计算机科学 2021-05-24 Yuening Li , Zhengzhang Chen , Daochen Zha , Mengnan Du , Denghui Zhang , Haifeng Chen , Xia Hu

Learning compressed representations of multivariate time series (MTS) facilitates data analysis in the presence of noise and redundant information, and for a large number of variates and time steps. However, classical dimensionality…

神经与进化计算 · 计算机科学 2019-07-17 Filippo Maria Bianchi , Lorenzo Livi , Karl Øyvind Mikalsen , Michael Kampffmeyer , Robert Jenssen

Brain Tumor Segmentation from magnetic resonance imaging (MRI) is a critical technique for early diagnosis. However, rather than having complete four modalities as in BraTS dataset, it is common to have missing modalities in clinical…

计算机视觉与模式识别 · 计算机科学 2019-04-17 Yan Shen , Mingchen Gao

Brain tumor segmentation based on multi-modal magnetic resonance imaging (MRI) plays a pivotal role in assisting brain cancer diagnosis, treatment, and postoperative evaluations. Despite the achieved inspiring performance by existing…

图像与视频处理 · 电气工程与系统科学 2022-11-16 Haoran Li , Cheng Li , Weijian Huang , Xiawu Zheng , Yan Xi , Shanshan Wang

Contrastive pretraining provides robust representations by ensuring their invariance to different image transformations while simultaneously preventing representational collapse. Equivariant contrastive learning, on the other hand, provides…

计算机视觉与模式识别 · 计算机科学 2024-12-23 Taha Emre , Arunava Chakravarty , Dmitrii Lachinov , Antoine Rivail , Ursula Schmidt-Erfurth , Hrvoje Bogunović

Typically, a medical image offers spatial information on the anatomy (and pathology) modulated by imaging specific characteristics. Many imaging modalities including Magnetic Resonance Imaging (MRI) and Computed Tomography (CT) can be…

计算机视觉与模式识别 · 计算机科学 2020-04-21 Agisilaos Chartsias , Thomas Joyce , Giorgos Papanastasiou , Michelle Williams , David Newby , Rohan Dharmakumar , Sotirios A. Tsaftaris

Accuracy and consistency are two key factors in computer-assisted magnetic resonance (MR) image analysis. However, contrast variation from site to site caused by lack of standardization in MR acquisition impedes consistent measurements. In…

图像与视频处理 · 电气工程与系统科学 2021-03-25 Lianrui Zuo , Blake E. Dewey , Aaron Carass , Yihao Liu , Yufan He , Peter A. Calabresi , Jerry L. Prince

Multi-modal Magnetic Resonance Imaging (MRI) is imperative for accurate brain tumor segmentation, offering indispensable complementary information. Nonetheless, the absence of modalities poses significant challenges in achieving precise…

图像与视频处理 · 电气工程与系统科学 2024-08-27 Zheyu Zhang , Xinzhao Liu , Zheng Chen , Yueyi Zhang , Huanjing Yue , Yunwei Ou , Xiaoyan Sun

Multi-modal MRIs are widely used in neuroimaging applications since different MR sequences provide complementary information about brain structures. Recent works have suggested that multi-modal deep learning analysis can benefit from…

计算机视觉与模式识别 · 计算机科学 2021-06-14 Jiahong Ouyang , Ehsan Adeli , Kilian M. Pohl , Qingyu Zhao , Greg Zaharchuk

Features learned from single radiologic images are unable to provide information about whether and how much a lesion may be changing over time. Time-dependent features computed from repeated images can capture those changes and help…

图像与视频处理 · 电气工程与系统科学 2022-09-07 Thomas Z. Li , Kaiwen Xu , Riqiang Gao , Yucheng Tang , Thomas A. Lasko , Fabien Maldonado , Kim Sandler , Bennett A. Landman