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Photoacoustic tomography (PAT) has the potential to recover morphological and functional tissue properties with high spatial resolution. However, previous attempts to solve the optical inverse problem with supervised machine learning were…

图像与视频处理 · 电气工程与系统科学 2022-10-26 Melanie Schellenberg , Janek Gröhl , Kris K. Dreher , Jan-Hinrich Nölke , Niklas Holzwarth , Minu D. Tizabi , Alexander Seitel , Lena Maier-Hein

X-ray images play a vital role in the intraoperative processes due to their high resolution and fast imaging speed and greatly promote the subsequent segmentation, registration and reconstruction. However, over-dosed X-rays superimpose…

图像与视频处理 · 电气工程与系统科学 2024-08-01 Lixing Tan , Shuang Song , Kangneng Zhou , Chengbo Duan , Lanying Wang , Huayang Ren , Linlin Liu , Wei Zhang , Ruoxiu Xiao

Recent advances in diffusion models have enabled the creation of deceptively real images, posing significant security risks when misused. In this study, we empirically show that different timesteps of DDIM inversion reveal varying subtle…

计算机视觉与模式识别 · 计算机科学 2025-07-29 Yixin Wu , Feiran Zhang , Tianyuan Shi , Ruicheng Yin , Zhenghua Wang , Zhenliang Gan , Xiaohua Wang , Changze Lv , Xiaoqing Zheng , Xuanjing Huang

While deep learning holds great promise for disease diagnosis and prognosis in cardiac magnetic resonance imaging, its progress is often constrained by highly imbalanced and biased training datasets. To address this issue, we propose a…

图像与视频处理 · 电气工程与系统科学 2025-09-09 Grzegorz Skorupko , Richard Osuala , Zuzanna Szafranowska , Kaisar Kushibar , Vien Ngoc Dang , Nay Aung , Steffen E Petersen , Karim Lekadir , Polyxeni Gkontra

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

Data diversity is critical to success when training deep learning models. Medical imaging data sets are often imbalanced as pathologic findings are generally rare, which introduces significant challenges when training deep learning models.…

Medical image analysis plays a pivotal role in the early diagnosis of diseases such as skin lesions. However, the scarcity of data and the class imbalance significantly hinder the performance of deep learning models. We propose a novel…

图像与视频处理 · 电气工程与系统科学 2025-07-29 Zhaobin Xu

To our knowledge, all deep computer-aided detection and diagnosis (CAD) systems for prostate cancer (PCa) detection consider bi-parametric magnetic resonance imaging (bp-MRI) only, including T2w and ADC sequences while excluding the 4D…

图像与视频处理 · 电气工程与系统科学 2022-07-08 Audrey Duran , Gaspard Dussert , Carole Lartizien

Data-driven automatic approaches have demonstrated their great potential in resolving various clinical diagnostic dilemmas for patients with malignant gliomas in neuro-oncology with the help of conventional and advanced molecular MR images.…

计算机视觉与模式识别 · 计算机科学 2020-08-28 Pengfei Guo , Puyang Wang , Jinyuan Zhou , Vishal M. Patel , Shanshan Jiang

Artificial intelligence and machine learning techniques have the promise to revolutionize the field of digital pathology. However, these models demand considerable amounts of data, while the availability of unbiased training data is…

图像与视频处理 · 电气工程与系统科学 2023-02-14 Nati Daniel , Eliel Aknin , Ariel Larey , Yoni Peretz , Guy Sela , Yael Fisher , Yonatan Savir

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

Multi-modal medical images provide complementary soft-tissue characteristics that aid in the screening and diagnosis of diseases. However, limited scanning time, image corruption and various imaging protocols often result in incomplete…

计算机视觉与模式识别 · 计算机科学 2024-07-10 Yue Zhang , Chengtao Peng , Qiuli Wang , Dan Song , Kaiyan Li , S. Kevin Zhou

In multiple sclerosis, lesions interfere with automated magnetic resonance imaging analyses such as brain parcellation and deformable registration, while lesion segmentation models are hindered by the limited availability of annotated…

Achieving robust performance and fairness across diverse patient populations remains a challenge in developing clinically deployable deep learning models for diagnostic imaging. Synthetic data generation has emerged as a promising strategy…

High-quality, large-scale data is essential for robust deep learning models in medical applications, particularly ultrasound image analysis. Diffusion models facilitate high-fidelity medical image generation, reducing the costs associated…

图像与视频处理 · 电气工程与系统科学 2024-04-01 Pooria Ashrafian , Milad Yazdani , Moein Heidari , Dena Shahriari , Ilker Hacihaliloglu

Attenuation correction is an essential requirement of positron emission tomography (PET) image reconstruction to allow for accurate quantification. However, attenuation correction is particularly challenging for PET-MRI as neither PET nor…

Access to high-quality datasets in the medical industry limits machine learning model performance. To address this issue, we propose a Denoising Diffusion Probabilistic Model (DDPM) combined with a UNet architecture for X-ray image…

图像与视频处理 · 电气工程与系统科学 2024-01-04 Praveen Mahaulpatha , Thulana Abeywardane , Tomson George

Analyzing medical data to find abnormalities is a time-consuming and costly task, particularly for rare abnormalities, requiring tremendous efforts from medical experts. Artificial intelligence has become a popular tool for the automatic…

Computer-assisted interventions can improve intra-operative guidance, particularly through deep learning methods that harness the spatiotemporal information in surgical videos. However, the severe data imbalance often found in surgical…

One of the distinct characteristics in radiologists' reading of multiparametric prostate MR scans, using reporting systems such as PI-RADS v2.1, is to score individual types of MR modalities, T2-weighted, diffusion-weighted, and dynamic…

图像与视频处理 · 电气工程与系统科学 2024-01-23 Wen Yan , Bernard Chiu , Ziyi Shen , Qianye Yang , Tom Syer , Zhe Min , Shonit Punwani , Mark Emberton , David Atkinson , Dean C. Barratt , Yipeng Hu