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Low-dose computed tomography (LDCT) became a clear trend in radiology with an aspiration to refrain from delivering excessive X-ray radiation to the patients. The reduction of the radiation dose decreases the risks to the patients but…

图像与视频处理 · 电气工程与系统科学 2021-02-05 Elvira Zainulina , Alexey Chernyavskiy , Dmitry V. Dylov

Deep learning is a very promising technique for low-dose computed tomography (LDCT) image denoising. However, traditional deep learning methods require paired noisy and clean datasets, which are often difficult to obtain. This paper…

图像与视频处理 · 电气工程与系统科学 2023-08-15 Yuting Zhu , Qiang He , Yudong Yao , Yueyang Teng

Low-dose computed tomography (LDCT) has become the technology of choice for diagnostic medical imaging, given its lower radiation dose compared to standard CT, despite increasing image noise and potentially affecting diagnostic accuracy. To…

计算机视觉与模式识别 · 计算机科学 2024-04-30 Bin Wang , Fei Deng , Peifan Jiang , Shuang Wang , Xiao Han , Zhixuan Zhang

Low-dose computed tomography (LDCT) reduces radiation exposure but suffers from image artifacts and loss of detail due to quantum and electronic noise, potentially impacting diagnostic accuracy. Transformer combined with diffusion models…

图像与视频处理 · 电气工程与系统科学 2025-07-01 Qiqing Liu , Guoquan Wei , Zekun Zhou , Yiyang Wen , Liu Shi , Qiegen Liu

Low-dose Computed Tomography (LDCT) reconstruction is an important task in medical image analysis. Recent years have seen many deep learning based methods, proved to be effective in this area. However, these methods mostly follow a…

图像与视频处理 · 电气工程与系统科学 2023-02-08 Runyi Li

Noise in low-dose computed tomography (LDCT) can obscure important diagnostic details. While deep learning offers powerful denoising, supervised methods require impractical paired data, and self-supervised alternatives often use opaque,…

图像与视频处理 · 电气工程与系统科学 2026-02-19 Yipeng Sun , Linda-Sophie Schneider , Siyuan Mei , Jinhua Wang , Ge Hu , Mingxuan Gu , Chengze Ye , Fabian Wagner , Lan Song , Siming Bayer , Andreas Maier

The resurgence of deep neural networks has created an alternative pathway for low-dose computed tomography denoising by learning a nonlinear transformation function between low-dose CT (LDCT) and normal-dose CT (NDCT) image pairs. However,…

图像与视频处理 · 电气工程与系统科学 2022-11-04 Sutanu Bera , Prabir Kumar Biswas

Low-dose computed tomography (LDCT) is critical for minimizing radiation exposure, but it often leads to increased noise and reduced image quality. Traditional denoising methods, such as iterative optimization or supervised learning, often…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Debopom Sutradhar , Ripon Kumar Debnath , Mohaimenul Azam Khan Raiaan , Yan Zhang , Reem E. Mohamed , Sami Azam

In this work, we present a novel self-supervised method for Low Dose Computed Tomography (LDCT) reconstruction. Reducing the radiation dose to patients during a CT scan is a crucial challenge since the quality of the reconstruction highly…

图像与视频处理 · 电气工程与系统科学 2023-12-21 Hang Xu , Alessandro Perelli

Computed Tomography (CT) is a vital diagnostic tool in clinical practice, yet the health risks associated with ionizing radiation cannot be overlooked. Low-dose CT (LDCT) helps mitigate radiation exposure but simultaneously leads to reduced…

计算机视觉与模式识别 · 计算机科学 2025-11-20 Guoliang Gong , Man Yu

While various deep learning methods were proposed for low-dose computed tomography (CT) denoising, they often suffer from over-smoothing, blurring, and lack of explainability. To alleviate these issues, we propose a plug-and-play…

图像与视频处理 · 电气工程与系统科学 2024-03-12 Zhihao Chen , Tao Chen , Chenhui Wang , Chuang Niu , Ge Wang , Hongming Shan

Despite the indispensable role of X-ray computed tomography (CT) in diagnostic medicine field, the associated ionizing radiation is still a major concern considering that it may cause genetic and cancerous diseases. Decreasing the exposure…

图像与视频处理 · 电气工程与系统科学 2021-06-09 Ti Bai , Dan Nguyen , Biling Wang , Steve Jiang

In the intention of minimizing excessive X-ray radiation administration to patients, low-dose computed tomography (LDCT) has become a distinct trend in radiology. However, while lowering the radiation dose reduces the risk to the patient,…

医学物理 · 物理学 2022-04-12 Long Zhou , Xiaozhuang Wang , Min Hou , Ping Li , Chunlong Fu , Yanjun Ren , Tingting Shao , Xi Hu , Jihong Sun , Hongwei Ye

Computed Tomography (CT) imposes risk on the patients due to its inherent X-ray radiation, stimulating the development of low-dose CT (LDCT) imaging methods. Lowering the radiation dose reduces the health risks but leads to noisier…

图像与视频处理 · 电气工程与系统科学 2022-11-03 Elvira Zainulina , Alexey Chernyavskiy , Dmitry V. Dylov

Low-Dose Computed Tomography (LDCT) technique, which reduces the radiation harm to human bodies, is now attracting increasing interest in the medical imaging field. As the image quality is degraded by low dose radiation, LDCT exams require…

图像与视频处理 · 电气工程与系统科学 2022-04-19 Liutao Yang , Zhongnian Li , Rongjun Ge , Junyong Zhao , Haipeng Si , Daoqiang Zhang

Computed tomography (CT) has played a vital role in medical diagnosis, assessment, and therapy planning, etc. In clinical practice, concerns about the increase of X-ray radiation exposure attract more and more attention. To lower the X-ray…

图像与视频处理 · 电气工程与系统科学 2022-01-19 Zhicheng Zhang , Xiaokun Liang , Wei Zhao , Lei Xing

Low-dose computed tomography (LDCT) is the standard modality for lung cancer screening, known for its low radiation dose but high noise levels. While existing literature focuses on denoising LDCT images, comparative research on simulating…

图像与视频处理 · 电气工程与系统科学 2026-05-13 Jiaying Liu , Anna Corti , Valentina D. A. Corino , Luca Mainardi

Low-dose computed tomography (LDCT) reduces patient radiation exposure but introduces substantial noise that degrades image quality and hinders diagnostic accuracy. Existing denoising approaches often require many diffusion steps, limiting…

医学物理 · 物理学 2025-10-29 Qiang Li , Mojtaba Safari , Shansong Wang , Huiqiao Xie , Jie Ding , Tonghe Wang , Xiaofeng Yang

Low-dose computed tomography (LDCT) reduces radiation exposure but often degrades image quality, potentially compromising diagnostic accuracy. Existing deep learning-based denoising methods focus primarily on pixel-level mappings,…

图像与视频处理 · 电气工程与系统科学 2025-07-09 Zhihao Chen , Tao Chen , Chenhui Wang , Qi Gao , Huidong Xie , Chuang Niu , Ge Wang , Hongming Shan

Low-dose CT (LDCT) significantly reduces the radiation dose received by patients, however, dose reduction introduces additional noise and artifacts. Currently, denoising methods based on convolutional neural networks (CNNs) face limitations…

图像与视频处理 · 电气工程与系统科学 2025-07-08 Linxuan Li , Wenjia Wei , Luyao Yang , Wenwen Zhang , Jiashu Dong , Yahua Liu , Hongshi Huang , Wei Zhao
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