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Magnetic resonance imaging (MRI), especially functional MRI (fMRI) and diffusion MRI (dMRI), is essential for studying neurodegenerative diseases. However, missing modalities pose a major barrier to their clinical use. Although GAN- and…

计算机视觉与模式识别 · 计算机科学 2025-11-10 Xiongri Shen , Jiaqi Wang , Yi Zhong , Zhenxi Song , Leilei Zhao , Yichen Wei , Lingyan Liang , Shuqiang Wang , Baiying Lei , Demao Deng , Zhiguo Zhang

Brain cell structure and function reflect neurodevelopment, plasticity and ageing, and changes can help flag pathological processes such as neurodegeneration and neuroinflammation. Accurate and quantitative methods to non-invasively…

Medical image segmentation has been significantly advanced with the rapid development of deep learning (DL) techniques. Existing DL-based segmentation models are typically discriminative; i.e., they aim to learn a mapping from the input…

计算机视觉与模式识别 · 计算机科学 2025-09-01 Tao Chen , Chenhui Wang , Zhihao Chen , Yiming Lei , Hongming Shan

Medical image segmentation models struggle with rare abnormalities due to scarce annotated pathological data. We propose DiffAug a novel framework that combines textguided diffusion-based generation with automatic segmentation validation to…

计算机视觉与模式识别 · 计算机科学 2025-08-26 Maham Nazir , Muhammad Aqeel , Francesco Setti

Skin diseases affect millions of people worldwide, across all ethnicities. Increasing diagnosis accessibility requires fair and accurate segmentation and classification of dermatology images. However, the scarcity of annotated medical…

计算机视觉与模式识别 · 计算机科学 2023-07-24 Héctor Carrión , Narges Norouzi

Annotation variability remains a substantial challenge in medical image segmentation, stemming from ambiguous imaging boundaries and diverse clinical expertise. Traditional deep learning methods producing single deterministic segmentation…

计算机视觉与模式识别 · 计算机科学 2025-09-09 Han Zhang , Xiangde Luo , Yong Chen , Kang Li

Unsupervised anomaly detection has gained significant attention in the field of medical imaging due to its capability of relieving the costly pixel-level annotation. To achieve this, modern approaches usually utilize generative models to…

图像与视频处理 · 电气工程与系统科学 2024-01-22 Rui Xu , Yunke Wang , Bo Du

Brain MRI scans are often found in four modalities, consisting of T1-weighted with and without contrast enhancement (T1ce and T1w), T2-weighted imaging (T2w), and Flair. Leveraging complementary information from these different modalities…

图像与视频处理 · 电气工程与系统科学 2025-09-22 Bhavesh Sandbhor , Bheeshm Sharma , Balamurugan Palaniappan

Generating realistic images to accurately predict changes in the structure of brain MRI is a crucial tool for clinicians. Such applications help assess patients' outcomes and analyze how diseases progress at the individual level. However,…

图像与视频处理 · 电气工程与系统科学 2024-06-19 Mattia Litrico , Francesco Guarnera , Valerio Giuffirda , Daniele Ravì , Sebastiano Battiato

Multi-contrast magnetic resonance imaging (MRI) is the most common management tool used to characterize neurological disorders based on brain tissue contrasts. However, acquiring high-resolution MRI scans is time-consuming and infeasible…

图像与视频处理 · 电气工程与系统科学 2023-06-08 Ye Mao , Lan Jiang , Xi Chen , Chao Li

Brain disorders are a major challenge to global health, causing millions of deaths each year. Accurate diagnosis of these diseases relies heavily on advanced medical imaging techniques such as Magnetic Resonance Imaging (MRI) and Computed…

计算机视觉与模式识别 · 计算机科学 2024-05-07 Xuran Zhu

Segmentation of brain structures from MRI is crucial for evaluating brain morphology, yet existing CNN and transformer-based methods struggle to delineate complex structures accurately. While current diffusion models have shown promise in…

图像与视频处理 · 电气工程与系统科学 2025-07-01 Qilong Xing , Zikai Song , Yuteng Ye , Yuke Chen , Youjia Zhang , Na Feng , Junqing Yu , Wei Yang

Deep Learning models are easily disturbed by variations in the input images that were not seen during training, resulting in unpredictable behaviours. Such Out-of-Distribution (OOD) images represent a significant challenge in the context of…

图像与视频处理 · 电气工程与系统科学 2024-10-28 Benjamin Lambert , Florence Forbes , Senan Doyle , Alan Tucholka , Michel Dojat

Deep unsupervised anomaly detection in brain magnetic resonance imaging offers a promising route to identify pathological deviations without requiring lesion-specific annotations. Yet, fragmented evaluations, heterogeneous datasets, and…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Alexander Frotscher , Christian F. Baumgartner , Thomas Wolfers

Diagnosing Brain Tumor with the aid of Magnetic Resonance Imaging (MRI) has gained enormous prominence over the years, primarily in the field of medical science. Detection and/or partitioning of brain tumors solely with the aid of MR…

图像与视频处理 · 电气工程与系统科学 2020-11-19 Md. Abu Bakr Siddique , Shadman Sakib , Mohammad Mahmudur Rahman Khan , Abyaz Kader Tanzeem , Madiha Chowdhury , Nowrin Yasmin

Advances in microscopy imaging enable researchers to visualize structures at the nanoscale level thereby unraveling intricate details of biological organization. However, challenges such as image noise, photobleaching of fluorophores, and…

图像与视频处理 · 电气工程与系统科学 2024-09-19 Pamela Osuna-Vargas , Maren H. Wehrheim , Lucas Zinz , Johanna Rahm , Ashwin Balakrishnan , Alexandra Kaminer , Mike Heilemann , Matthias Kaschube

Deep learning-based segmentation techniques have shown remarkable performance in brain segmentation, yet their success hinges on the availability of extensive labeled training data. Acquiring such vast datasets, however, poses a significant…

计算机视觉与模式识别 · 计算机科学 2024-07-18 Jihoon Cho , Suhyun Ahn , Beomju Kim , Hyungjoon Bae , Xiaofeng Liu , Fangxu Xing , Kyungeun Lee , Georges Elfakhri , Van Wedeen , Jonghye Woo , Jinah Park

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

Diffusion models have recently emerged as powerful generative models in medical imaging. However, it remains a major challenge to combine these data-driven models with domain knowledge to guide brain imaging problems. In neuroimaging,…

Pseudo-healthy image inpainting is an essential preprocessing step for analyzing pathological brain MRI scans. Most current inpainting methods favor slice-wise 2D models for their high in-plane fidelity, but their independence across slices…

图像与视频处理 · 电气工程与系统科学 2025-07-25 Dou Hoon Kwark , Shirui Luo , Xiyue Zhu , Yudu Li , Zhi-Pei Liang , Volodymyr Kindratenko