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Data scarcity in medical imaging poses significant challenges due to privacy concerns. Diffusion models, a recent generative modeling technique, offer a potential solution by generating synthetic and realistic data. However, questions…

图像与视频处理 · 电气工程与系统科学 2024-12-24 Abdullah al Nomaan Nafi , Md. Alamgir Hossain , Rakib Hossain Rifat , Md Mahabub Uz Zaman , Md Manjurul Ahsan , Shivakumar Raman

Light microscopy is a widespread and inexpensive imaging technique facilitating biomedical discovery and diagnostics. However, light diffraction barrier and imperfections in optics limit the level of detail of the acquired images. The…

Deep learning (DL) models in medical imaging face challenges in generalizability and robustness due to variations in image acquisition parameters (IAP). In this work, we introduce a novel method using conditional denoising diffusion…

图像与视频处理 · 电气工程与系统科学 2024-11-01 Pedro Morão , Joao Santinha , Yasna Forghani , Nuno Loução , Pedro Gouveia , Mario A. T. Figueiredo

Segmentation masks of pathological areas are useful in many medical applications, such as brain tumour and stroke management. Moreover, healthy counterfactuals of diseased images can be used to enhance radiologists' training files and to…

图像与视频处理 · 电气工程与系统科学 2024-10-02 Alessandro Fontanella , Grant Mair , Joanna Wardlaw , Emanuele Trucco , Amos Storkey

Denoising Diffusion Probabilistic Models (DDPMs) have achieved remarkable success in various image generation tasks compared with Generative Adversarial Nets (GANs). Recent work on semantic image synthesis mainly follows the de facto…

计算机视觉与模式识别 · 计算机科学 2026-01-22 Wengang Zhou , Weilun Wang , Jianmin Bao , Dongdong Chen , Dong Chen , Lu Yuan , Houqiang Li

It is widely accepted that medical imaging systems should be objectively assessed via task-based image quality (IQ) measures that ideally account for all sources of randomness in the measured image data, including the variation in the…

计算机视觉与模式识别 · 计算机科学 2025-02-25 Xichen Xu , Wentao Chen , Weimin Zhou

Denoising Diffusion Probabilistic Models (DDPMs) are powerful generative deep learning models that have been very successful at image generation, and, very recently, in path planning and control. In this paper, we investigate how to…

机器人学 · 计算机科学 2024-11-18 Michiel Nikken , Nicolò Botteghi , Wesley Roozing , Federico Califano

Artificial Intelligence (AI) based image analysis has an immense potential to support diagnostic histopathology, including cancer diagnostics. However, developing supervised AI methods requires large-scale annotated datasets. A potentially…

Free-form inpainting is the task of adding new content to an image in the regions specified by an arbitrary binary mask. Most existing approaches train for a certain distribution of masks, which limits their generalization capabilities to…

计算机视觉与模式识别 · 计算机科学 2022-09-01 Andreas Lugmayr , Martin Danelljan , Andres Romero , Fisher Yu , Radu Timofte , Luc Van Gool

We propose a novel pipeline for the generation of synthetic ultrasound images via Denoising Diffusion Probabilistic Models (DDPMs) guided by cardiac semantic label maps. We show that these synthetic images can serve as a viable substitute…

图像与视频处理 · 电气工程与系统科学 2023-08-16 David Stojanovski , Uxio Hermida , Pablo Lamata , Arian Beqiri , Alberto Gomez

In this work, we address the challenge of multi-task image generation with limited data for denoising diffusion probabilistic models (DDPM), a class of generative models that produce high-quality images by reversing a noisy diffusion…

机器学习 · 计算机科学 2023-11-29 Delaram Pirhayatifard , Mohammad Taha Toghani , Guha Balakrishnan , César A. Uribe

Recently, skeleton-based human action has become a hot research topic because the compact representation of human skeletons brings new blood to this research domain. As a result, researchers began to notice the importance of using RGB or…

计算机视觉与模式识别 · 计算机科学 2023-07-26 Yifan Jiang , Han Chen , Hanseok Ko

Cephalometric landmark detection is essential for orthodontic diagnostics and treatment planning. Nevertheless, the scarcity of samples in data collection and the extensive effort required for manual annotation have significantly impeded…

计算机视觉与模式识别 · 计算机科学 2025-05-12 Dongqian Guo , Wencheng Han , Pang Lyu , Yuxi Zhou , Jianbing Shen

This letter introduces a dual application of denoising diffusion probabilistic model (DDPM)-based channel estimation algorithm integrating data denoising and augmentation. Denoising addresses the severe noise in raw signals at pilot…

信号处理 · 电气工程与系统科学 2025-10-06 Yupeng Li , Ruhao Zhang , Yitong Liu , Chunju Shao , Jing Jin , Shijian Gao

Recent advances in computer vision have led to significant progress in the generation of realistic image data, with denoising diffusion probabilistic models proving to be a particularly effective method. In this study, we demonstrate that…

图像与视频处理 · 电气工程与系统科学 2023-08-09 Dennis Eschweiler , Rüveyda Yilmaz , Matisse Baumann , Ina Laube , Rijo Roy , Abin Jose , Daniel Brückner , Johannes Stegmaier

Generating realistic motions for digital humans is time-consuming for many graphics applications. Data-driven motion synthesis approaches have seen solid progress in recent years through deep generative models. These results offer…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Edmund J. C. Findlay , Haozheng Zhang , Ziyi Chang , Hubert P. H. Shum

Based on the Denoising Diffusion Probabilistic Model (DDPM), medical image segmentation can be described as a conditional image generation task, which allows to compute pixel-wise uncertainty maps of the segmentation and allows an implicit…

图像与视频处理 · 电气工程与系统科学 2022-11-01 Xutao Guo , Yanwu Yang , Chenfei Ye , Shang Lu , Yang Xiang , Ting Ma

Diffusion Probabilistic Models (DPMs) have emerged as a powerful class of deep generative models, achieving remarkable performance in image synthesis tasks. However, these models face challenges in terms of widespread adoption due to their…

计算机视觉与模式识别 · 计算机科学 2024-06-03 Kidist Amde Mekonnen , Nicola Dall'Asen , Paolo Rota

Denoising Diffusion Probabilistic Models (DDPM) have recently gained significant attention. DDPMs compose a Markovian process that begins in the data domain and gradually adds noise until reaching pure white noise. DDPMs generate…

计算机视觉与模式识别 · 计算机科学 2024-07-09 Shady Abu-Hussein , Raja Giryes

Medical image segmentation is a challenging task, made more difficult by many datasets' limited size and annotations. Denoising diffusion probabilistic models (DDPM) have recently shown promise in modelling the distribution of natural…

计算机视觉与模式识别 · 计算机科学 2023-11-14 Margherita Rosnati , Melanie Roschewitz , Ben Glocker