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In recent years, large-scale pre-trained diffusion models have demonstrated their outstanding capabilities in image and video generation tasks. However, existing models tend to produce visual objects commonly found in the training dataset,…

计算机视觉与模式识别 · 计算机科学 2024-07-30 Changgu Chen , Libing Yang , Xiaoyan Yang , Lianggangxu Chen , Gaoqi He , CHangbo Wang , Yang Li

Dataset expansion can effectively alleviate the problem of data scarcity for medical image segmentation, due to privacy concerns and labeling difficulties. However, existing expansion algorithms still face great challenges due to their…

图像与视频处理 · 电气工程与系统科学 2023-06-07 Shitong Shao , Xiaohan Yuan , Zhen Huang , Ziming Qiu , Shuai Wang , Kevin Zhou

Diffusion models have recently shown promise in time series forecasting, particularly for probabilistic predictions. However, they often fail to achieve state-of-the-art point estimation performance compared to regression-based methods.…

人工智能 · 计算机科学 2025-11-25 Hang Ding , Xue Wang , Tian Zhou , Tao Yao

Despite the potential of federated learning in medical applications, inconsistent imaging quality across institutions-stemming from lower-quality data from a minority of clients-biases federated models toward more common high-quality…

图像与视频处理 · 电气工程与系统科学 2025-03-13 Nannan Wu , Zhuo Kuang , Zengqiang Yan , Ping Wang , Li Yu

Widely adopted medical image segmentation methods, although efficient, are primarily deterministic and remain poorly amenable to natural language prompts. Thus, they lack the capability to estimate multiple proposals, human interaction, and…

计算机视觉与模式识别 · 计算机科学 2026-01-23 Yuan Lin , Murong Xu , Marc Hölle , Chinmay Prabhakar , Andreas Maier , Vasileios Belagiannis , Bjoern Menze , Suprosanna Shit

Medical image segmentation models can perform unevenly across subgroups. Most existing fairness methods focus on improving average subgroup performance, implicitly treating each subgroup as internally homogeneous. However, this can hide…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Yiqi Tian , Sangjoon Park , Bo Zeng , Pengfei Jin , Yujin Oh , Quanzheng Li

Depth information provides valuable insights into the 3D structure especially the outline of objects, which can be utilized to improve the semantic segmentation tasks. However, a naive fusion of depth information can disrupt feature and…

计算机视觉与模式识别 · 计算机科学 2024-08-20 Wei Sun , Yuan Li , Qixiang Ye , Jianbin Jiao , Yanzhao Zhou

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

Diffusion models have emerged as a robust framework for various generative tasks, including tabular data synthesis. However, current tabular diffusion models tend to inherit bias in the training dataset and generate biased synthetic data,…

机器学习 · 计算机科学 2025-03-05 Zeyu Yang , Han Yu , Peikun Guo , Khadija Zanna , Xiaoxue Yang , Akane Sano

Diffusion and flow-based models have enabled significant progress in generation tasks across various modalities and have recently found applications in predictive learning. However, unlike typical generation tasks that encourage sample…

计算机视觉与模式识别 · 计算机科学 2026-03-24 Yu Zhang , Xingzhuo Guo , Haoran Xu , Jialong Wu , Mingsheng Long

Synthetic dataset generation in Computer Vision, particularly for industrial applications, is still underexplored. Industrial defect segmentation, for instance, requires highly accurate labels, yet acquiring such data is costly and…

计算机视觉与模式识别 · 计算机科学 2026-01-28 Emanuele Caruso , Alessandro Simoni , Francesco Pelosin

Generative AI models have recently achieved astonishing results in quality and are consequently employed in a fast-growing number of applications. However, since they are highly data-driven, relying on billion-sized datasets randomly…

Graph diffusion models have gained significant attention in graph generation tasks, but they often inherit and amplify topology biases from sensitive attributes (e.g. gender, age, region), leading to unfair synthetic graphs. Existing fair…

机器学习 · 计算机科学 2026-03-03 Wendi Wang , Jiaxi Yang , Yongkang Du , Lu Lin

Synthetic data generation is an important application of machine learning in the field of medical imaging. While existing approaches have successfully applied fine-tuned diffusion models for synthesizing medical images, we explore potential…

计算机视觉与模式识别 · 计算机科学 2024-10-04 Lakshmi Nair

The advent of foundation models (FMs) in healthcare offers unprecedented opportunities to enhance medical diagnostics through automated classification and segmentation tasks. However, these models also raise significant concerns about their…

计算机视觉与模式识别 · 计算机科学 2024-12-09 Ruinan Jin , Zikang Xu , Yuan Zhong , Qiongsong Yao , Qi Dou , S. Kevin Zhou , Xiaoxiao Li

Image restoration aims to enhance low quality images, producing high quality images that exhibit natural visual characteristics and fine semantic attributes. Recently, the diffusion model has emerged as a powerful technique for image…

计算机视觉与模式识别 · 计算机科学 2024-07-23 Jiangtong Tan , Feng Zhao

Augmentation for dense prediction typically relies on either sample mixing or generative synthesis. Mixing improves robustness but misaligned masks yield soft label ambiguity. Diffusion synthesis increases apparent diversity but, when…

计算机视觉与模式识别 · 计算机科学 2025-11-06 Pengyu Jie , Wanquan Liu , Rui He , Yihui Wen , Deyu Meng , Chenqiang Gao

Diffusion-based data augmentation (DiffDA) has emerged as a promising approach to improving classification performance under data scarcity. However, existing works vary significantly in task configurations, model choices, and experimental…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Zekun Li , Yinghuan Shi , Yang Gao , Dong Xu

Many self-supervised denoising approaches have been proposed in recent years. However, these methods tend to overly smooth images, resulting in the loss of fine structures that are essential for medical applications. In this paper, we…

图像与视频处理 · 电气工程与系统科学 2025-04-02 Basar Demir , Yikang Liu , Xiao Chen , Eric Z. Chen , Lin Zhao , Boris Mailhe , Terrence Chen , Shanhui Sun

Low-field to high-field MRI synthesis has emerged as a cost-effective strategy to enhance image quality under hardware and acquisition constraints, particularly in scenarios where access to high-field scanners is limited or impractical.…

计算机视觉与模式识别 · 计算机科学 2026-03-13 Zhenxuan Zhang , Peiyuan Jing , Ruicheng Yuan , Liwei Hu , Anbang Wang , Fanwen Wang , Yinzhe Wu , Kh Tohidul Islam , Zhaolin Chen , Zi Wang , Peter Lally , Guang Yang