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相关论文: A Two-Step Framework for Multi-Material Decomposit…

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Dual-energy computed tomography (DECT) enables material-specific imaging through acquisitions at two different X-ray energy spectra. Material decomposition from DECT data is an ill-posed inverse problem that is highly sensitive to noise…

By acquiring two sets of tomographic measurements at distinct X-ray spectra, the dual-energy CT (DECT) enables quantitative material-specific imaging. However, the conventionally decomposed material basis images may encounter severe image…

Dual-energy X-ray Computed Tomography (DECT) constitutes an advanced technology which enables automatic decomposition of materials in clinical images without manual segmentation using the dependency of the X-ray linear attenuation with…

图像与视频处理 · 电气工程与系统科学 2025-07-25 Hang Xu , Alexandre Bousse , Alessandro Perelli

Dual energy CT (DECT) enhances tissue characterization because it can produce images of basis materials such as soft-tissue and bone. DECT is of great interest in applications to medical imaging, security inspection and nondestructive…

医学物理 · 物理学 2018-09-05 Qiaoqiao Ding , Tianye Niu , Xiaoqun Zhang , Yong Long

Dual-energy CT (DECT) has been increasingly used in imaging applications because of its capability for material differentiation. However, material decomposition suffers from magnified noise from two CT images of independent scans, leading…

医学物理 · 物理学 2019-06-19 Wenkun Zhang , Hanming Zhang , Linyuan Wang , Xiaohui Wang , Ailong Cai , Lei Li , Tianye Niu , Bin Yan

Dual-energy computed tomography (DECT) has been widely used in many applications that need material decomposition. Image-domain methods directly decompose material images from high- and low-energy attenuation images, and thus, are…

图像与视频处理 · 电气工程与系统科学 2022-01-25 Zhipeng Li , Yong Long , Il Yong Chun

Deep learning based solutions are being succesfully implemented for a wide variety of applications. Most notably, clinical use-cases have gained an increased interest and have been the main driver behind some of the cutting-edge data-driven…

图像与视频处理 · 电气工程与系统科学 2023-04-04 Theodor Cheslerean-Boghiu , Felix C. Hofmann , Manuel Schultheiß , Franz Pfeiffer , Daniela Pfeiffer , Tobias Lasser

MRI with multiple protocols is commonly used for diagnosis, but it suffers from a long acquisition time, which yields the image quality vulnerable to say motion artifacts. To accelerate, various methods have been proposed to reconstruct…

图像与视频处理 · 电气工程与系统科学 2020-04-09 Bo Zhou , S. Kevin Zhou

Dual energy X-ray Computed Tomography (DECT) enables to automatically decompose materials in clinical images without the manual segmentation using the dependency of the X-ray linear attenuation with energy. In this work we propose a deep…

图像与视频处理 · 电气工程与系统科学 2024-06-04 Jiandong Wang , Alessandro Perelli

Background: Dual-energy CT (DECT) and material decomposition play vital roles in quantitative medical imaging. However, the decomposition process may suffer from significant noise amplification, leading to severely degraded image…

Multimodal medical image fusion (MMIF) extracts the most meaningful information from multiple source images, enabling a more comprehensive and accurate diagnosis. Achieving high-quality fusion results requires a careful balance of…

计算机视觉与模式识别 · 计算机科学 2025-06-19 Dan He , Weisheng Li , Guofen Wang , Yuping Huang , Shiqiang Liu

With the rapid advancement of mobile imaging, capturing screens using smartphones has become a prevalent practice in distance learning and conference recording. However, moir\'e artifacts, caused by frequency aliasing between display…

计算机视觉与模式识别 · 计算机科学 2025-09-22 Qirui Yang , Fangpu Zhang , Yeying Jin , Qihua Cheng , Peng-Tao Jiang , Huanjing Yue , Jingyu Yang

Metal artifacts in computed tomography (CT) severely degrade image quality, compromising diagnostic accuracy and radiotherapy planning, especially in cancer patients with high-density implants. We propose H3D-MarNet, a two-stage framework…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Mubashara Rehman , Niki Martinel , Michele Avanzo , Riccardo Spizzo , Christian Micheloni

Quantitative image reconstruction in dual-energy computed tomography (CT) remains a topic of active research. We read with interest ``DIRECT-Net: A unified mutual-domain material decomposition network for quantitative dual-energy CT…

医学物理 · 物理学 2022-12-20 Xiaochuan Pan , Emil Y. Sidky

Deep convolutional neural networks (CNNs) for image denoising can effectively exploit rich hierarchical features and have achieved great success. However, many deep CNN-based denoising models equally utilize the hierarchical features of…

计算机视觉与模式识别 · 计算机科学 2024-01-08 Wencong Wu , An Ge , Guannan Lv , Yuelong Xia , Yungang Zhang , Wen Xiong

Magnetic resonance (MR) image acquisition is an inherently prolonged process, whose acceleration has long been the subject of research. This is commonly achieved by obtaining multiple undersampled images, simultaneously, through parallel…

图像与视频处理 · 电气工程与系统科学 2021-06-15 Chun-Mei Feng , Zhanyuan Yang , Huazhu Fu , Yong Xu , Jian Yang , Ling Shao

Single-Photon Emission Computed Tomography (SPECT) is widely applied for the diagnosis of coronary artery diseases. Low-dose (LD) SPECT aims to minimize radiation exposure but leads to increased image noise. Limited-view (LV) SPECT, such as…

图像与视频处理 · 电气工程与系统科学 2024-01-25 Xiongchao Chen , Bo Zhou , Xueqi Guo , Huidong Xie , Qiong Liu , James S. Duncan , Albert J. Sinusas , Chi Liu

Infrared and visible image fusion aims to combine complementary information from both modalities to provide a more comprehensive scene understanding. However, due to the significant differences between the two modalities, preserving key…

计算机视觉与模式识别 · 计算机科学 2024-09-19 Jian Xu , Xin He

Compressed Sensing (CS) significantly speeds up Magnetic Resonance Image (MRI) processing and achieves accurate MRI reconstruction from under-sampled k-space data. According to the current research, there are still several problems with…

图像与视频处理 · 电气工程与系统科学 2023-10-24 Junpeng Tan , Chunmei Qing , Xiangmin Xu

Dual energy computed tomography (DECT) has become of particular interest in clinic recent years. The DECT scan comprises two images, corresponding to two photon attenuation coefficients maps of the objects. Meanwhile, the DECT images are…

医学物理 · 物理学 2017-11-21 Sui Li , Yongbo Wang , Yuting Liao , Ji He , Dong Zeng , Zhaoying Bian , Jianhua Ma
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