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Multi-Focus Image Fusion (MFIF) is a promising image enhancement technique to obtain all-in-focus images meeting visual needs and it is a precondition of other computer vision tasks. One of the research trends of MFIF is to avoid the…

计算机视觉与模式识别 · 计算机科学 2020-11-10 Yicheng Wang , Shuang Xu , Junmin Liu , Zixiang Zhao , Chunxia Zhang , Jiangshe Zhang

Magnetic resonance diffusion tensor imaging (DTI) is a critical tool for neural disease diagnosis. However, long scan time greatly hinders the widespread clinical use of DTI. To accelerate image acquisition, a feature-enhanced joint…

图像与视频处理 · 电气工程与系统科学 2024-05-28 Lang Zhang , Jinling He , Dong Liang , Hairong Zheng , Yanjie 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

Diffusion-weighted magnetic resonance imaging (DW-MRI) is a critical imaging method for capturing and modeling tissue microarchitecture at a millimeter scale. A common practice to model the measured DW-MRI signal is via fiber orientation…

Diffusion models have achieved remarkable quality in multi-modal MRI synthesis, but their computational cost (hundreds of sampling steps and separate models per modality) limits clinical deployment. We observe that this inefficiency stems…

计算机视觉与模式识别 · 计算机科学 2026-04-24 Yalcin Tur , Mihajlo Stojkovic , Ulas Bagci

Magnetic Resonance Imaging (MRI) produces excellent soft tissue contrast, albeit it is an inherently slow imaging modality. Promising deep learning methods have recently been proposed to reconstruct accelerated MRI scans. However, existing…

图像与视频处理 · 电气工程与系统科学 2024-04-17 Yilmaz Korkmaz , Tolga Cukur , Vishal M. Patel

Various imaging modalities are used in patient diagnosis, each offering unique advantages and valuable insights into anatomy and pathology. Computed Tomography (CT) is crucial in diagnostics, providing high-resolution images for precise…

图像与视频处理 · 电气工程与系统科学 2024-12-30 Rabeya Tus Sadia , Jie Zhang , Jin Chen

Multimodal magnetic resonance imaging (MRI) is crucial for brain tumor segmentation, with many methods leveraging its four key modalities to capture complementary information for effective sub-region analysis. However, the absence of…

人工智能 · 计算机科学 2026-05-19 Sha Tao , Jiao Pan , Yu Guo , Chao Yao

Diffusion probabilistic models have recently achieved remarkable success in generating high-quality images. However, balancing high perceptual quality and low distortion remains challenging in application of diffusion models in image…

图像与视频处理 · 电气工程与系统科学 2025-12-23 Juan Song , Jiaxiang He , Lijie Yang , Mingtao Feng , Keyan Wang

In clinical practice, tri-modal medical image fusion, compared to the existing dual-modal technique, can provide a more comprehensive view of the lesions, aiding physicians in evaluating the disease's shape, location, and biological…

图像与视频处理 · 电气工程与系统科学 2024-10-16 Yushen Xu , Xiaosong Li , Yuchan Jie , Haishu Tan

Magnetic Resonance Imaging (MRI), including diffusion MRI (dMRI), serves as a ``microscope'' for anatomical structures and routinely mitigates the influence of low signal-to-noise ratio scans by compromising temporal or spatial resolution.…

图像与视频处理 · 电气工程与系统科学 2025-03-11 Chenxu Wu , Qingpeng Kong , Zihang Jiang , S. Kevin Zhou

Medical multi-modal pre-training has revealed promise in computer-aided diagnosis by leveraging large-scale unlabeled datasets. However, existing methods based on masked autoencoders mainly rely on data-level reconstruction tasks, but lack…

计算机视觉与模式识别 · 计算机科学 2024-04-10 Yupei Zhang , Li Pan , Qiushi Yang , Tan Li , Zhen Chen

Gliomas are one of the most prevalent types of primary brain tumours, accounting for more than 30\% of all cases and they develop from the glial stem or progenitor cells. In theory, the majority of brain tumours could well be identified…

计算机视觉与模式识别 · 计算机科学 2022-04-07 Reza Azad , Nika Khosravi , Dorit Merhof

Magnetic Resonance Imaging (MRI) has become essential in clinical diagnosis due to its high resolution and multiple contrast mechanisms. However, the relatively long acquisition time limits its broader application. To address this issue,…

图像与视频处理 · 电气工程与系统科学 2025-01-07 Ruiquan Ge , Xiao Yu , Yifei Chen , Guanyu Zhou , Fan Jia , Shenghao Zhu , Junhao Jia , Chenyan Zhang , Yifei Sun , Dong Zeng , Changmiao Wang , Qiegen Liu , Shanzhou Niu

Semantic segmentation of brain tumours is a fundamental task in medical image analysis that can help clinicians in diagnosing the patient and tracking the progression of any malignant entities. Accurate segmentation of brain lesions is…

图像与视频处理 · 电气工程与系统科学 2023-08-29 Aditya Kasliwal , Sankarshanaa Sagaram , Laven Srivastava , Pratinav Seth , Adil Khan

This study aims to develop a novel Cycle-guided Denoising Diffusion Probability Model (CG-DDPM) for cross-modality MRI synthesis. The CG-DDPM deploys two DDPMs that condition each other to generate synthetic images from two different MRI…

图像与视频处理 · 电气工程与系统科学 2023-05-02 Shaoyan Pan , Chih-Wei Chang , Junbo Peng , Jiahan Zhang , Richard L. J. Qiu , Tonghe Wang , Justin Roper , Tian Liu , Hui Mao , Xiaofeng Yang

The accurate segmentation of brain tumors from multi-modal MRI is critical for clinical diagnosis and treatment planning. While integrating complementary information from various MRI sequences is a common practice, the frequent absence of…

计算机视觉与模式识别 · 计算机科学 2026-03-06 Dongqing Xie , Yonghuang Wu , Zisheng Ai , Jun Min , Zhencun Jiang , Shaojin Geng , Lei Wang

Efficient modal feature fusion strategy is the key to achieve accurate segmentation of brain glioma. However, due to the specificity of different MRI modes, it is difficult to carry out cross-modal fusion with large differences in modal…

图像与视频处理 · 电气工程与系统科学 2025-03-21 Dong Chen , Boyue Zhao , Yi Zhang , Meng Zhao

Imputation of missing images via source-to-target modality translation can improve diversity in medical imaging protocols. A pervasive approach for synthesizing target images involves one-shot mapping through generative adversarial networks…

图像与视频处理 · 电气工程与系统科学 2023-04-03 Muzaffer Özbey , Onat Dalmaz , Salman UH Dar , Hasan A Bedel , Şaban Özturk , Alper Güngör , Tolga Çukur

In recent years, the denoising diffusion model has achieved remarkable success in image segmentation modeling. With its powerful nonlinear modeling capabilities and superior generalization performance, denoising diffusion models have…

计算机视觉与模式识别 · 计算机科学 2024-08-06 Weiping Ding , Sheng Geng , Haipeng Wang , Jiashuang Huang , Tianyi Zhou