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Recently, the diffusion model has emerged as a superior generative model that can produce high quality and realistic images. However, for medical image translation, the existing diffusion models are deficient in accurately retaining…

Image and Video Processing · Electrical Eng. & Systems 2023-10-31 Yunxiang Li , Hua-Chieh Shao , Xiao Liang , Liyuan Chen , Ruiqi Li , Steve Jiang , Jing Wang , You Zhang

Limited-Angle Computed Tomography (LACT) is a challenging inverse problem where missing angular projections lead to incomplete sinograms and severe artifacts in the reconstructed images. While recent learning-based methods have demonstrated…

Image and Video Processing · Electrical Eng. & Systems 2025-07-09 Jiaqi Guo , Santiago López-Tapia

Diffusion models have shown great promise in text-guided image style transfer, but there is a trade-off between style transformation and content preservation due to their stochastic nature. Existing methods require computationally expensive…

Computer Vision and Pattern Recognition · Computer Science 2023-04-13 Serin Yang , Hyunmin Hwang , Jong Chul Ye

Low-dose computed tomography (LDCT) reduces radiation exposure but suffers from image artifacts and loss of detail due to quantum and electronic noise, potentially impacting diagnostic accuracy. Transformer combined with diffusion models…

Image and Video Processing · Electrical Eng. & Systems 2025-07-01 Qiqing Liu , Guoquan Wei , Zekun Zhou , Yiyang Wen , Liu Shi , Qiegen Liu

Diffusion models have recently demonstrated considerable advancement in the generation and reconstruction of magnetic resonance imaging (MRI) data. These models exhibit great potential in handling unsampled data and reducing noise,…

Image and Video Processing · Electrical Eng. & Systems 2024-11-07 Yu Guan , Kunlong Zhang , Qi Qi , Dong Wang , Ziwen Ke , Shaoyu Wang , Dong Liang , Qiegen Liu

Four-dimensional computed tomography (4DCT) is essential for medical imaging applications like radiotherapy, which demand precise respiratory motion representation. Traditional methods for reconstructing 4DCT data suffer from artifacts and…

Medical Physics · Physics 2025-07-21 Antoine De Paepe , Alexandre Bousse , Clémentine Phung-Ngoc , Dimitris Visvikis

Large-scale contrastive vision-language pre-trained models provide the zero-shot model achieving competitive performance across a range of image classification tasks without requiring training on downstream data. Recent works have confirmed…

Machine Learning · Computer Science 2024-04-02 Giung Nam , Byeongho Heo , Juho Lee

Unified image restoration is a significantly challenging task in low-level vision. Existing methods either make tailored designs for specific tasks, limiting their generalizability across various types of degradation, or rely on training…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Huaqiu Li , Yong Wang , Tongwen Huang , Hailang Huang , Haoqian Wang , Xiangxiang Chu

Limited Angle Computed Tomography (LACT) often faces significant challenges due to missing angular information. Unlike previous methods that operate in the image domain, we propose a new method that focuses on sinogram inpainting. We…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Jiaqi Guo , Santiago Lopez-Tapia , Aggelos K. Katsaggelos

Due to the singularity of real-world paired datasets and the complexity of low-light environments, this leads to supervised methods lacking a degree of scene generalisation. Meanwhile, limited by poor lighting and content guidance, existing…

Computer Vision and Pattern Recognition · Computer Science 2024-11-22 Jinhong He , Shivakumara Palaiahnakote , Aoxiang Ning , Minglong Xue

Zero-shot object pose estimation enables the retrieval of object poses from images without necessitating object-specific training. In recent approaches this is facilitated by vision foundation models (VFM), which are pre-trained models that…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Bernd Von Gimborn , Philipp Ausserlechner , Markus Vincze , Stefan Thalhammer

Video restoration aims to reconstruct high quality video sequences from low quality inputs, addressing tasks such as super resolution, denoising, and deblurring. Traditional regression based methods often produce unrealistic details and…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Sicheng Gao , Nancy Mehta , Zongwei Wu , Radu Timofte

Diffusion models have achieved remarkable success in imaging inverse problems owing to their powerful generative capabilities. However, existing approaches typically rely on models trained for specific degradation types, limiting their…

Computer Vision and Pattern Recognition · Computer Science 2025-06-17 Zhen Wang , Hongyi Liu , Zhihui Wei

Cross-modality image segmentation aims to segment the target modalities using a method designed in the source modality. Deep generative models can translate the target modality images into the source modality, thus enabling cross-modality…

Image and Video Processing · Electrical Eng. & Systems 2024-04-11 Zihao Wang , Yingyu Yang , Yuzhou Chen , Tingting Yuan , Maxime Sermesant , Herve Delingette , Ona Wu

Computed tomography (CT) is important in clinical diagnosis, but acquiring high-resolution (HR) CT is constrained by radiation exposure risks. While deep learning-based super-resolution (SR) methods have shown promise for reconstructing HR…

Image and Video Processing · Electrical Eng. & Systems 2026-05-29 Jeonghyun Noh , Hyun-Jic Oh , Won-Ki Jeong

Diffusion-based robot navigation policies trained on large-scale imitation learning datasets, can generate multi-modal trajectories directly from the robot's visual observations, bypassing the traditional localization-mapping-planning…

Robotics · Computer Science 2026-03-16 Junhe Sheng , Ruofei Bai , Kuan Xu , Ruimeng Liu , Jie Chen , Shenghai Yuan , Wei-Yun Yau , Lihua Xie

Blind face restoration from low-quality (LQ) images is a challenging task that requires not only high-fidelity image reconstruction but also the preservation of facial identity. While diffusion models like Stable Diffusion have shown…

Computer Vision and Pattern Recognition · Computer Science 2025-05-30 Runyi Li , Bin Chen , Jian Zhang , Radu Timofte

The diffusion model has demonstrated superior performance in synthesizing diverse and high-quality images for text-guided image translation. However, there remains room for improvement in both the formulation of text prompts and the…

Computer Vision and Pattern Recognition · Computer Science 2025-03-27 Qi Si , Bo Wang , Zhao Zhang

Diffusion Models have demonstrated remarkable capabilities in handling inverse problems, offering high-quality posterior-sampling-based solutions. Despite significant advances, a fundamental trade-off persists regarding the way the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Noam Elata , Hyungjin Chung , Jong Chul Ye , Tomer Michaeli , Michael Elad

Limited-Angle Computed Tomography (LACT) is a non-destructive evaluation technique used in a variety of applications ranging from security to medicine. The limited angle coverage in LACT is often a dominant source of severe artifacts in the…

Image and Video Processing · Electrical Eng. & Systems 2022-11-23 Jiaming Liu , Rushil Anirudh , Jayaraman J. Thiagarajan , Stewart He , K. Aditya Mohan , Ulugbek S. Kamilov , Hyojin Kim
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