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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

To reduce scanning time and/or improve spatial/temporal resolution in some MRI applications, parallel MRI (pMRI) acquisition techniques with multiple coils acquisition have emerged since the early 1990s as powerful 3D imaging methods that…

最优化与控制 · 数学 2009-09-03 Lotfi Chaari , Jean-Christophe Pesquet , Philippe Ciuciu , Amel Benazza-Benyahia

We present an inference-time diffusion sampling method to perform multi-view consistent image editing using pre-trained 2D image editing models. These models can independently produce high-quality edits for each image in a set of multi-view…

计算机视觉与模式识别 · 计算机科学 2025-10-17 Hadi Alzayer , Yunzhi Zhang , Chen Geng , Jia-Bin Huang , Jiajun Wu

Diffusion models (DMs) have recently been introduced as a regularizing prior for PET image reconstruction, integrating DMs trained on high-quality PET images with unsupervised schemes that condition on measured data. While these approaches…

医学物理 · 物理学 2026-03-18 George Webber , Alexander Hammers , Andrew P King , Andrew J Reader

Multi-center neuroimaging studies face technical variability due to batch differences across sites, which potentially hinders data aggregation and impacts study reliability.Recent efforts in neuroimaging harmonization have aimed to minimize…

计算机视觉与模式识别 · 计算机科学 2024-09-04 Haoyu Lan , Bino A. Varghese , Nasim Sheikh-Bahaei , Farshid Sepehrband , Arthur W Toga , Jeiran Choupan

We propose an image synthesis mechanism for multi-sequence prostate MR images conditioned on text, to control lesion presence and sequence, as well as to generate paired bi-parametric images conditioned on images e.g. for generating…

图像与视频处理 · 电气工程与系统科学 2023-03-06 Shaheer U. Saeed , Tom Syer , Wen Yan , Qianye Yang , Mark Emberton , Shonit Punwani , Matthew J. Clarkson , Dean C. Barratt , Yipeng Hu

Diffusion priors have recently demonstrated strong capability in enhancing the quality of sparse-view 3D reconstruction by augmenting training views at novel viewpoints, but they inevitably introduce hallucinated content -- artifacts…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Xi Liu , Weiwei Sun , Zhou Ren , Chris Broaddus , Siyu Huang , Laurent Guigues

Capturing high-quality images from only a few detected photons is a fundamental challenge in computational imaging. Single-photon avalanche diode (SPAD) sensors promise high-quality imaging in regimes where conventional cameras fail, but…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Aryan Garg , Sizhuo Ma , Mohit Gupta

Histological whole slide images (WSIs) can be usually compromised by artifacts, such as tissue folding and bubbles, which will increase the examination difficulty for both pathologists and Computer-Aided Diagnosis (CAD) systems. Existing…

图像与视频处理 · 电气工程与系统科学 2023-07-27 Zhenqi He , Junjun He , Jin Ye , Yiqing Shen

Magnetic Resonance Imaging generally requires long exposure times, while being sensitive to patient motion, resulting in artifacts in the acquired images, which may hinder their diagnostic relevance. Despite research efforts to decrease the…

图像与视频处理 · 电气工程与系统科学 2025-02-04 Paolo Angella , Vito Paolo Pastore , Matteo Santacesaria

Diffusion models have recently shown remarkable results in magnetic resonance imaging reconstruction. However, the employed networks typically are black-box estimators of the (smoothed) prior score with tens of millions of parameters,…

图像与视频处理 · 电气工程与系统科学 2025-01-16 Laurenz Nagler , Martin Zach , Thomas Pock

X-ray interferometry is an emerging imaging modality with a wide variety of potential clinical applications, including lung and breast imaging, as well as in non-destructive testing, such as additive manufacturing and porosimetry. A grating…

Painterly image harmonization aims to insert photographic objects into paintings and obtain artistically coherent composite images. Previous methods for this task mainly rely on inference optimization or generative adversarial network, but…

计算机视觉与模式识别 · 计算机科学 2023-08-07 Lingxiao Lu , Jiangtong Li , Junyan Cao , Li Niu , Liqing Zhang

Recent state-of-the-art image restoration methods mostly adopt latent diffusion models with U-Net backbones, yet still facing challenges in achieving high-quality restoration due to their limited capabilities. Diffusion transformers (DiTs),…

计算机视觉与模式识别 · 计算机科学 2025-04-28 Dehong Kong , Fan Li , Zhixin Wang , Jiaqi Xu , Renjing Pei , Wenbo Li , WenQi Ren

Positron Emission Tomography and Magnetic Resonance Imaging (PET-MRI) systems can obtain functional and anatomical scans. PET suffers from a low signal-to-noise ratio. Meanwhile, the k-space data acquisition process in MRI is…

图像与视频处理 · 电气工程与系统科学 2024-07-12 Taofeng Xie , Zhuo-Xu Cui , Chen Luo , Huayu Wang , Congcong Liu , Yuanzhi Zhang , Xuemei Wang , Yanjie Zhu , Guoqing Chen , Dong Liang , Qiyu Jin , Yihang Zhou , Haifeng Wang

Synthetic aperture radar is a high-resolution two-dimensional imaging radar, however, during the imaging process, SAR is susceptible to intentional and unintentional interference, with radio frequency interference (RFI) being the most…

信号处理 · 电气工程与系统科学 2024-03-06 Fuping Fang , Wenhao Lv , Dahai Dai

Real-world image denoising is an extremely important image processing problem, which aims to recover clean images from noisy images captured in natural environments. In recent years, diffusion models have achieved very promising results in…

计算机视觉与模式识别 · 计算机科学 2023-05-09 Cheng Yang , Lijing Liang , Zhixun Su

Image restoration aims to recover degraded images. However, existing diffusion-based restoration methods, despite great success in natural image restoration, often struggle to faithfully reconstruct textual regions in degraded images. Those…

计算机视觉与模式识别 · 计算机科学 2025-07-04 Jaewon Min , Jin Hyeon Kim , Paul Hyunbin Cho , Jaeeun Lee , Jihye Park , Minkyu Park , Sangpil Kim , Hyunhee Park , Seungryong Kim

Beamforming in plane-wave imaging (PWI) is an essential step in creating images with optimal quality. Adaptive methods estimate the apodization weights from echo traces acquired by several transducer elements. Herein, we formulate…

图像与视频处理 · 电气工程与系统科学 2020-12-02 Sobhan Goudarzi , Amir Asif , Hassan Rivaz

Artifact removal is critical for accurate analysis and interpretation of Electroencephalogram (EEG) signals. Traditional methods perform poorly with strong artifact-EEG correlations or single-channel data. Recent advances in diffusion-based…

图像与视频处理 · 电气工程与系统科学 2025-09-19 Feixue Shao , Xueyu Liu , Yongfei Wu , Jianbo Lu , Guiying Yan , Weihua Yang