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In medical imaging, the diffusion models have shown great potential for synthetic image generation tasks. However, these approaches often lack the interpretable connections between the generated and real images and can create anatomically…

图像与视频处理 · 电气工程与系统科学 2026-02-12 Jian-Qing Zheng , Yuanhan Mo , Yang Sun , Jiahua Li , Fuping Wu , Ziyang Wang , Tonia Vincent , Bartłomiej W. Papież

Diffusion probabilistic models (DPMs) have become the state-of-the-art in high-quality image generation. However, DPMs have an arbitrary noisy latent space with no interpretable or controllable semantics. Although there has been significant…

机器学习 · 计算机科学 2024-08-27 Aneesh Komanduri , Chen Zhao , Feng Chen , Xintao Wu

Large Language Models (LLMs), constrained by their auto-regressive nature, suffer from slow decoding. Speculative decoding methods have emerged as a promising solution to accelerate LLM decoding, attracting attention from both systems and…

人工智能 · 计算机科学 2026-02-03 Xuliang Wang , Yuetao Chen , Maochan Zhen , Fang Liu , Xinzhou Zheng , Xingwu Liu , Hong Xu , Ming Li

We consider the task of counterfactual estimation from observational imaging data given a known causal structure. In particular, quantifying the causal effect of interventions for high-dimensional data with neural networks remains an open…

机器学习 · 计算机科学 2022-02-22 Pedro Sanchez , Sotirios A. Tsaftaris

Diffusion models, while trained for image generation, have emerged as powerful foundational feature extractors for downstream tasks. We find that off-the-shelf diffusion models, trained exclusively to generate natural RGB images, can…

计算机视觉与模式识别 · 计算机科学 2025-06-04 Nurislam Tursynbek , Hastings Greer , Basar Demir , Marc Niethammer

The generation of realistic medical images from text descriptions has significant potential to address data scarcity challenges in healthcare AI while preserving patient privacy. This paper presents a comprehensive study of text-to-image…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Mikhail Chaichuk , Sushant Gautam , Steven Hicks , Elena Tutubalina

Image matching aims at identifying corresponding points between a pair of images. Currently, detector-free methods have shown impressive performance in challenging scenarios, thanks to their capability of generating dense matches and global…

计算机视觉与模式识别 · 计算机科学 2024-08-08 Xudong Cai , Yongcai Wang , Lun Luo , Minhang Wang , Deying Li , Jintao Xu , Weihao Gu , Rui Ai

Magnetic Resonance Imaging (MRI) is a critical tool in modern medical diagnostics, yet its prolonged acquisition time remains a critical limitation, especially in time-sensitive clinical scenarios. While undersampling strategies can…

图像与视频处理 · 电气工程与系统科学 2025-10-09 Mohammed Alsubaie , Wenxi Liu , Linxia Gu , Ovidiu C. Andronesi , Sirani M. Perera , Xianqi Li

Supervised fine-tuning (SFT) with token-level hard labels can amplify overconfident imitation of factually unsupported targets, causing hallucinations that propagate in multi-sentence generation. We study an augmented SFT setting in which…

计算与语言 · 计算机科学 2026-04-03 Chenning Xu , Mao Zheng , Mingyang Song

Abdominal CT data are limited by high annotation costs and privacy constraints, which hinder the development of robust segmentation and diagnostic models. We present a Prior-Integrated Variation Modeling (PIVM) framework, a diffusion-based…

计算机视觉与模式识别 · 计算机科学 2026-03-25 Dinglun He , Baoming Zhang , Xu Wang , Yao Hao , Deshan Yang , Ye Duan

Brain MRI scans are often found in four modalities, consisting of T1-weighted with and without contrast enhancement (T1ce and T1w), T2-weighted imaging (T2w), and Flair. Leveraging complementary information from these different modalities…

图像与视频处理 · 电气工程与系统科学 2025-09-22 Bhavesh Sandbhor , Bheeshm Sharma , Balamurugan Palaniappan

Diffusion models achieve state-of-the-art image generation but remain computationally costly due to iterative denoising. Latent-space models like Stable Diffusion reduce overhead yet lose fine detail, while retrieval-augmented methods…

机器学习 · 计算机科学 2025-12-23 Bilal Faye , Hanane Azzag , Mustapha Lebbah

Reducing the requirement for densely annotated masks in medical image segmentation is important due to cost constraints. In this paper, we consider the problem of inferring pixel-level predictions of brain lesions by only using image-level…

计算机视觉与模式识别 · 计算机科学 2022-07-26 Pedro Sanchez , Antanas Kascenas , Xiao Liu , Alison Q. O'Neil , Sotirios A. Tsaftaris

Deformable registration is a fundamental task in medical image processing, aiming to achieve precise alignment by establishing nonlinear correspondences between images. Traditional methods offer good adaptability and interpretability but…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Jing Hu , Kaiwei Yu , Hongjiang Xian , Shu Hu , Xin Wang

Diffusion models have achieved significant success in both natural image and medical image domains, encompassing a wide range of applications. Previous investigations in medical images have often been constrained to specific anatomical…

计算机视觉与模式识别 · 计算机科学 2025-12-08 Yongrui Yu , Yannian Gu , Shaoting Zhang , Xiaofan Zhang

Scaling by training on large datasets has been shown to enhance the quality and fidelity of image generation and manipulation with diffusion models; however, such large datasets are not always accessible in medical imaging due to cost and…

计算机视觉与模式识别 · 计算机科学 2025-04-14 Yousef Yeganeh , Azade Farshad , Ioannis Charisiadis , Marta Hasny , Martin Hartenberger , Björn Ommer , Nassir Navab , Ehsan Adeli

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

Despite the advancements in 3D full-shape generation, accurately modeling complex geometries and semantics of shape parts remains a significant challenge, particularly for shapes with varying numbers of parts. Current methods struggle to…

计算机视觉与模式识别 · 计算机科学 2025-04-08 Lei Cheng , Mahdi Saleh , Qing Cheng , Lu Sang , Hongli Xu , Daniel Cremers , Federico Tombari

The Stable Diffusion model is a prominent text-to-image generation model that relies on a text prompt as its input, which is encoded using the Contrastive Language-Image Pre-Training (CLIP). However, text prompts have limitations when it…

计算机视觉与模式识别 · 计算机科学 2024-02-16 Yuxuan Ding , Chunna Tian , Haoxuan Ding , Lingqiao Liu

Due to the flexibility of prompting, foundation models have become the dominant force in the domains of natural language processing and image generation. With the recent introduction of the Segment Anything Model (SAM), the prompt-driven…

图像与视频处理 · 电气工程与系统科学 2023-08-14 Yichi Zhang , Rushi Jiao