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Conditional medical image generation plays an important role in many clinically relevant imaging tasks. However, existing methods still face a fundamental challenge in balancing inference efficiency, patient-specific fidelity, and…

计算机视觉与模式识别 · 计算机科学 2026-04-22 Zirong Li , Siyuan Mei , Weiwen Wu , Andreas Maier , Lina Gölz , Yan Xia

Image-generative artificial intelligence (AI) has garnered significant attention in recent years. In particular, the diffusion model, a core component of generative AI, produces high-quality images with rich diversity. In this study, we…

计算机视觉与模式识别 · 计算机科学 2024-09-13 Sho Ozaki , Shizuo Kaji , Toshikazu Imae , Kanabu Nawa , Hideomi Yamashita , Keiichi Nakagawa

Enhancing the efficiency of high-quality image generation using Diffusion Models (DMs) is a significant challenge due to the iterative nature of the process. Flow Matching (FM) is emerging as a powerful generative modeling paradigm based on…

计算机视觉与模式识别 · 计算机科学 2025-05-28 Pascal Zwick , Nils Friederich , Maximilian Beichter , Lennart Hilbert , Ralf Mikut , Oliver Bringmann

Rectified Flow (RF) models have advanced high-quality image and video synthesis via optimal transport theory. However, when applied to image-to-image translation, they still depend on costly multi-step denoising, hindering real-time…

计算机视觉与模式识别 · 计算机科学 2025-11-26 Shengqian Li , Ming Gao , Yi Liu , Zuzeng Lin , Feng Wang , Feng Dai

Magnetic resonance imaging (MRI) is a leading modality for the diagnosis of liver cancer, significantly improving the classification of the lesion and patient outcomes. However, traditional MRI faces challenges including risks from contrast…

图像与视频处理 · 电气工程与系统科学 2025-08-14 Xiaojiao Xiao , Jianfeng Zhao , Qinmin Vivian Hu , Guanghui Wang

Computed tomography (CT) is one of the modalities for effective lung cancer screening, diagnosis, treatment, and prognosis. The features extracted from CT images are now used to quantify spatial and temporal variations in tumors. However,…

图像与视频处理 · 电气工程与系统科学 2023-03-28 Md Selim , Jie Zhang , Michael A. Brooks , Ge Wang , Jin Chen

Deep neural networks have brought remarkable breakthroughs in medical image analysis. However, due to their data-hungry nature, the modest dataset sizes in medical imaging projects might be hindering their full potential. Generating…

Multi-modality magnetic resonance imaging (MRI) is essential for the diagnosis and treatment of brain tumors. However, missing modalities are commonly observed due to limitations in scan time, scan corruption, artifacts, motion, and…

图像与视频处理 · 电气工程与系统科学 2025-01-08 Xiaojiao Xiao , Qinmin Vivian Hu , Guanghui Wang

Multi-modal magnetic resonance (MR) imaging provides great potential for diagnosing and analyzing brain gliomas. In clinical scenarios, common MR sequences such as T1, T2 and FLAIR can be obtained simultaneously in a single scanning…

图像与视频处理 · 电气工程与系统科学 2022-03-10 Ziqi Huang , Li Lin , Pujin Cheng , Linkai Peng , Xiaoying Tang

Diffusion magnetic resonance imaging (diffusion MRI) is a non-invasive microstructure assessment technique. Scalar measures, such as FA (fractional anisotropy) and MD (mean diffusivity), quantifying micro-structural tissue properties can be…

计算机视觉与模式识别 · 计算机科学 2019-07-23 Xuan Gu , Hans Knutsson , Markus Nilsson , Anders Eklund

Recently, computer-aided diagnosis systems have been developed to support diagnosis, but their performance depends heavily on the quality and quantity of training data. However, in clinical practice, it is difficult to collect the large…

图像与视频处理 · 电气工程与系统科学 2026-01-19 Kaito Urata , Maiko Nagao , Atsushi Teramoto , Kazuyoshi Imaizumi , Masashi Kondo , Hiroshi Fujita

Diffusion-based methodologies have shown significant potential in blind face restoration (BFR), leveraging their robust generative capabilities. However, they are often criticized for two significant problems: 1) slow training and inference…

计算机视觉与模式识别 · 计算机科学 2025-03-27 Ziying Zhang , Xiang Gao , Zhixin Wang , Qiang hu , Xiaoyun Zhang

Generating synthetic CT (sCT) from MRI or CBCT plays a crucial role in enabling MRI-only and CBCT-based adaptive radiotherapy, improving treatment precision while reducing patient radiation exposure. To address this task, we adopt a fully…

计算机视觉与模式识别 · 计算机科学 2026-04-24 Arnela Hadzic , Simon Johannes Joham , Martin Urschler

We studied the reconstruction of turbulent flow fields from trajectory data recorded by actively migrating Lagrangian agents. We propose a deep-learning model, track-to-flow (T2F), which employs a vision transformer as the encoder to…

流体动力学 · 物理学 2026-01-15 Hua-Lin Wu , Ao Xu , Heng-Dong Xi

Distilling latent diffusion models (LDMs) into ones that are fast to sample from is attracting growing research interest. However, the majority of existing methods face two critical challenges: (1) They hinge on long training using a huge…

计算机视觉与模式识别 · 计算机科学 2024-11-08 Qingsong Xie , Zhenyi Liao , Zhijie Deng , Chen chen , Haonan Lu

Graph diffusion models achieve state-of-the-art performance in graph generation but suffer from quadratic complexity in the number of nodes -- and much of their capacity is wasted modeling the absence of edges in sparse graphs. Inspired by…

机器学习 · 计算机科学 2026-05-13 Antoine Siraudin , Christopher Morris

Purpose: To propose a self-supervised deep learning-based compressed sensing MRI (DL-based CS-MRI) method named "Adaptive Self-Supervised Consistency Guided Diffusion Model (ASSCGD)" to accelerate data acquisition without requiring fully…

图像与视频处理 · 电气工程与系统科学 2025-02-11 Mojtaba Safari , Zach Eidex , Shaoyan Pan , Richard L. J. Qiu , Xiaofeng Yang

Computed tomography (CT) serves as an effective tool for lung cancer screening, diagnosis, treatment, and prognosis, providing a rich source of features to quantify temporal and spatial tumor changes. Nonetheless, the diversity of CT…

图像与视频处理 · 电气工程与系统科学 2023-10-10 Md Selim , Jie Zhang , Faraneh Fathi , Michael A. Brooks , Ge Wang , Guoqiang Yu , Jin Chen

Multi-tracer positron emission tomography (PET) provides critical insights into diverse neuropathological processes such as tau accumulation, neuroinflammation, and $\beta$-amyloid deposition in the brain, making it indispensable for…

图像与视频处理 · 电气工程与系统科学 2026-02-26 Minhui Yu , Yongheng Sun , David S. Lalush , Jason P Mihalik , Pew-Thian Yap , Mingxia Liu

Understanding temporal dynamics in medical imaging is crucial for applications such as disease progression modeling, treatment planning and anatomical development tracking. However, most deep learning methods either consider only single…

计算机视觉与模式识别 · 计算机科学 2025-09-01 Nico Albert Disch , Yannick Kirchhoff , Robin Peretzke , Maximilian Rokuss , Saikat Roy , Constantin Ulrich , David Zimmerer , Klaus Maier-Hein