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Domain shift, the mismatch between training and testing data characteristics, causes significant degradation in the predictive performance in multi-source imaging scenarios. In medical imaging, the heterogeneity of population, scanners and…

Machine Learning · Computer Science 2021-12-21 Rongguang Wang , Pratik Chaudhari , Christos Davatzikos

In MRI studies, the aggregation of imaging data from multiple acquisition sites enhances sample size but may introduce site-related variabilities that hinder consistency in subsequent analyses. Deep learning methods for image translation…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Vincent Roca , Grégory Kuchcinski , Jean-Pierre Pruvo , Dorian Manouvriez , Renaud Lopes

In recent years, deep learning-based image compression, particularly through generative models, has emerged as a pivotal area of research. Despite significant advancements, challenges such as diminished sharpness and quality in…

Image and Video Processing · Electrical Eng. & Systems 2024-09-18 Ryugo Morita , Hitoshi Nishimura , Ko Watanabe , Andreas Dengel , Jinjia Zhou

Diffusion models have attained remarkable success in the domains of image generation and editing. It is widely recognized that employing larger inversion and denoising steps in diffusion model leads to improved image reconstruction quality.…

Computer Vision and Pattern Recognition · Computer Science 2024-01-05 Chen Hou , Guoqiang Wei , Zhibo Chen

We aim to leverage diffusion to address the challenging image matting task. However, the presence of high computational overhead and the inconsistency of noise sampling between the training and inference processes pose significant obstacles…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Yihan Hu , Yiheng Lin , Wei Wang , Yao Zhao , Yunchao Wei , Humphrey Shi

Diffusion models (DMs) have emerged as powerful generative models for solving inverse problems, offering a good approximation of prior distributions of real-world image data. Typically, diffusion models rely on large-scale clean signals to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Yifei Wang , Weimin Bai , Weijian Luo , Wenzheng Chen , He Sun

Despite their generative power, diffusion models struggle to maintain style consistency across images conditioned on the same style prompt, hindering their practical deployment in creative workflows. While several training-free methods…

Computer Vision and Pattern Recognition · Computer Science 2025-09-23 Jiexuan Zhang , Yiheng Du , Qian Wang , Weiqi Li , Yu Gu , Jian Zhang

Despite the great success of large-scale text-to-image diffusion models in image generation and image editing, existing methods still struggle to edit the layout of real images. Although a few works have been proposed to tackle this…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Tao Xia , Yudi Zhang , Ting Liu Lei Zhang

Image fusion integrates complementary information from multi-source images to generate more informative results. Recently, the diffusion model, which demonstrates unprecedented generative potential, has been explored in image fusion.…

Computer Vision and Pattern Recognition · Computer Science 2025-03-25 Bing Cao , Baoshuo Cai , Changqing Zhang , Qinghua Hu

Diffusion magnetic resonance imaging datasets suffer from low Signal-to-Noise Ratio, especially at high b-values. Acquiring data at high b-values contains relevant information and is now of great interest for microstructural and…

Computer Vision and Pattern Recognition · Computer Science 2016-06-27 Samuel St-Jean , Pierrick Coupé , Maxime Descoteaux

Diffusion Generative Models (DGM) have rapidly surfaced as emerging topics in the field of computer vision, garnering significant interest across a wide array of deep learning applications. Despite their high computational demand, these…

Image and Video Processing · Electrical Eng. & Systems 2024-11-26 Denisha Thakkar , Vincent Quoc-Huy Trinh , Sonal Varma , Samira Ebrahimi Kahou , Hassan Rivaz , Mahdi S. Hosseini

Diffusion models have emerged as a leading technique for generating images due to their ability to create high-resolution and realistic images. Despite their strong performance, diffusion models still struggle in managing image collections…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Hailong Yang , Te Zhang , Kup-sze Choi , Zhaohong Deng

This review explores anomaly localization in medical images using denoising diffusion models. After providing a brief methodological background of these models, including their application to image reconstruction and their conditioning…

Image and Video Processing · Electrical Eng. & Systems 2025-12-15 Cosmin I. Bercea , Philippe C. Cattin , Julia A. Schnabel , Julia Wolleb

The predominant success of diffusion models in generative modeling has spurred significant interest in understanding their theoretical foundations. In this work, we propose a feature learning framework aimed at analyzing and comparing the…

Machine Learning · Statistics 2025-03-04 Andi Han , Wei Huang , Yuan Cao , Difan Zou

Domain shift between medical images from multicentres is still an open question for the community, which degrades the generalization performance of deep learning models. Generative adversarial network (GAN), which synthesize plausible…

Image and Video Processing · Electrical Eng. & Systems 2020-07-31 Xinpeng Xie , Jiawei Chen , Yuexiang Li , Linlin Shen , Kai Ma , Yefeng Zheng

Deep neural networks (DNN) have demonstrated unprecedented success for medical imaging applications. However, due to the issue of limited dataset availability and the strict legal and ethical requirements for patient privacy protection, the…

Machine Learning · Computer Science 2023-09-19 Chris Xing Tian , Haoliang Li , Yufei Wang , Shiqi Wang

Generative Adversarial Networks (GAN) have many potential medical imaging applications, including data augmentation, domain adaptation, and model explanation. Due to the limited memory of Graphical Processing Units (GPUs), most current 3D…

Image and Video Processing · Electrical Eng. & Systems 2022-09-13 Li Sun , Junxiang Chen , Yanwu Xu , Mingming Gong , Ke Yu , Kayhan Batmanghelich

Supervised learning-based methods yield robust denoising results, yet they are inherently limited by the need for large-scale clean/noisy paired datasets. The use of unsupervised denoisers, on the other hand, necessitates a more detailed…

Image and Video Processing · Electrical Eng. & Systems 2021-11-30 Nahyun Kim , Donggon Jang , Sunhyeok Lee , Bomi Kim , Dae-Shik Kim

Diffusion-weighted magnetic resonance imaging (DW-MRI) derived scalar maps are effective for assessing neurodegenerative diseases and microstructural properties of white matter in large number of brain conditions. However, DW-MRI inherently…

Computer Vision and Pattern Recognition · Computer Science 2025-11-10 Gabriel Girard , Manon Edde , Félix Dumais , Yoan David , Matthieu Dumont , Guillaume Theaud , Jean-Christophe Houde , Arnaud Boré , Maxime Descoteaux , Pierre-Marc Jodoin

Denoising diffusion models have found applications in image segmentation by generating segmented masks conditioned on images. Existing studies predominantly focus on adjusting model architecture or improving inference, such as test-time…

Image and Video Processing · Electrical Eng. & Systems 2023-12-11 Yunguan Fu , Yiwen Li , Shaheer U Saeed , Matthew J Clarkson , Yipeng Hu