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The rapid advancement of Artificial Intelligence (AI) in biomedical imaging and radiotherapy is hindered by the limited availability of large imaging data repositories. With recent research and improvements in denoising diffusion…

Image and Video Processing · Electrical Eng. & Systems 2024-03-27 Rowan Bradbury , Katherine A. Vallis , Bartlomiej W. Papiez

The recently rising markup-to-image generation poses greater challenges as compared to natural image generation, due to its low tolerance for errors as well as the complex sequence and context correlations between markup and rendered image.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-03 Guojin Zhong , Jin Yuan , Pan Wang , Kailun Yang , Weili Guan , Zhiyong Li

Synthesizing realistic and spatially precise anomalies is essential for enhancing the robustness of industrial anomaly detection systems. While recent diffusion-based methods have demonstrated strong capabilities in modeling complex defect…

Computer Vision and Pattern Recognition · Computer Science 2025-12-01 Yanshu Wang , Xichen Xu , Xiaoning Lei , Guoyang Xie

During the process of computed tomography (CT), metallic implants often cause disruptive artifacts in the reconstructed images, impeding accurate diagnosis. Several supervised deep learning-based approaches have been proposed for reducing…

Image and Video Processing · Electrical Eng. & Systems 2024-01-08 Xuan Liu , Yaoqin Xie , Songhui Diao , Shan Tan , Xiaokun Liang

Diffusion Models (DMs) have exhibited superior performance in generating high-quality and diverse images. However, this exceptional performance comes at the cost of expensive architectural design, particularly due to the attention module…

Computer Vision and Pattern Recognition · Computer Science 2024-05-09 Hongjie Wang , Difan Liu , Yan Kang , Yijun Li , Zhe Lin , Niraj K. Jha , Yuchen Liu

Existing methods to reconstruct vascular structures from a computed tomography (CT) angiogram rely on injection of intravenous contrast to enhance the radio-density within the vessel lumen. However, pathological changes can be present in…

Image and Video Processing · Electrical Eng. & Systems 2020-02-11 Anirudh Chandrashekar , Ashok Handa , Natesh Shivakumar , Pierfrancesco Lapolla , Vicente Grau , Regent Lee

In radiation therapy (RT), the reliance on pre-treatment computed tomography (CT) images encounter challenges due to anatomical changes, necessitating adaptive planning. Daily cone-beam CT (CBCT) imaging, pivotal for therapy adjustment,…

Computer Vision and Pattern Recognition · Computer Science 2024-09-20 Joonil Hwang , Sangjoon Park , NaHyeon Park , Seungryong Cho , Jin Sung Kim

Background. Percutaneous coronary intervention(PCI) in stable coronary artery disease(CAD) is commonly triggered by abnormal myocardial perfusion imaging(MPI). However, due to the possibilities of multivessel disease and variability of…

Medical Physics · Physics 2020-06-15 Haipeng Tang , Robert R. Bober , Chen Zhao , Chaoyang Zhang , Huiqing Zhu , Zhuo He , Zhihui Xu , Weihua Zhou

Photoacoustic computed tomography (PACT) is a promising imaging modality that combines the advantages of optical contrast with ultrasound detection. Utilizing ultrasound transducers with larger surface areas can improve detection…

Deep learning has significantly advanced PET image re-construction, achieving remarkable improvements in image quality through direct training on sinogram or image data. Traditional methods often utilize masks for inpainting tasks, but…

Computer Vision and Pattern Recognition · Computer Science 2025-03-12 Bin Huang , Binzhong He , Yanhan Chen , Zhili Liu , Xinyue Wang , Binxuan Li , Qiegen Liu

Magnetic Resonance Imaging (MRI) is a powerful, non-invasive diagnostic tool; however, its clinical applicability is constrained by prolonged acquisition times. Whilst present deep learning-based approaches have demonstrated potential in…

Image and Video Processing · Electrical Eng. & Systems 2024-09-24 Anurag Malyala , Zhenlin Zhang , Chengyan Wang , Chen Qin

Continuous Conditional Diffusion Model (CCDM) is a diffusion-based framework designed to generate high-quality images conditioned on continuous regression labels. Although CCDM has demonstrated clear advantages over prior approaches across…

Computer Vision and Pattern Recognition · Computer Science 2026-02-03 Xin Ding , Yun Chen , Sen Zhang , Kao Zhang , Nenglun Chen , Peibei Cao , Yongwei Wang , Fei Wu

Continual Anomaly Detection (CAD) enables anomaly detection models in learning new classes while preserving knowledge of historical classes. CAD faces two key challenges: catastrophic forgetting and segmentation of small anomalous regions.…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Lei Hu , Zhiyong Gan , Ling Deng , Jinglin Liang , Lingyu Liang , Shuangping Huang , Tianshui Chen

Volumetric segmentation is important in medical imaging, but current methods face challenges like requiring lots of manual annotations and being tailored to specific tasks, which limits their versatility. General segmentation models used…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Zifan Chen , Xinyu Nan , Jiazheng Li , Jie Zhao , Haifeng Li , Ziling Lin , Haoshen Li , Heyun Chen , Yiting Liu , Lei Tang , Li Zhang , Bin Dong

Patients undergoing a mechanical thrombectomy procedure usually have a multi-detector CT (MDCT) scan before and after the intervention. The image quality of the flat panel detector CT (FDCT) present in the intervention room is generally…

Image and Video Processing · Electrical Eng. & Systems 2025-08-28 Hélène Corbaz , Anh Nguyen , Victor Schulze-Zachau , Paul Friedrich , Alicia Durrer , Florentin Bieder , Philippe C. Cattin , Marios N Psychogios

Recent advances in generative modeling with diffusion processes (DPs) enabled breakthroughs in image synthesis. Despite impressive image quality, these models have various prompt compliance problems, including low recall in generating…

Computer Vision and Pattern Recognition · Computer Science 2024-10-30 Deepak Sridhar , Abhishek Peri , Rohith Rachala , Nuno Vasconcelos

Photoacoustic computed tomography (PACT), also known as optoacoustic tomography, is an emerging imaging technique that holds great promise for biomedical imaging. PACT is a hybrid imaging method that can exploit the strong endogenous…

Medical Physics · Physics 2019-05-13 Joemini Poudel , Yang Lou , Mark A. Anastasio

Diffusion models have recently achieved impressive results in reconstructing images from noisy inputs, and similar ideas have been applied to speech enhancement by treating time-frequency representations as images. With the ubiquity of…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-21 Renana Opochinsky , Sharon Gannot

Attenuation correction (AC) is necessary for accurate activity quantification in positron emission tomography (PET). Conventional reconstruction methods typically rely on attenuation maps derived from a co-registered computed tomography…

Breast cancer is the most prevalent cancer among women worldwide, and early detection is crucial for reducing its mortality rate and improving quality of life. Dedicated breast computed tomography (CT) scanners offer better image quality…

Image and Video Processing · Electrical Eng. & Systems 2024-01-30 Wenjun Xia , Hsin Wu Tseng , Chuang Niu , Wenxiang Cong , Xiaohua Zhang , Shaohua Liu , Ruola Ning , Srinivasan Vedantham , Ge Wang