中文
相关论文

相关论文: BCD-Net for Low-dose CT Reconstruction: Accelerati…

200 篇论文

Sparse-view Computed Tomography (CT) is an emerging protocol designed to reduce X-ray dose radiation in medical imaging. Traditional Filtered Back Projection algorithm reconstructions suffer from severe artifacts due to sparse data. In…

数值分析 · 数学 2024-12-03 Elena Loli Piccolomini , Davide Evangelista , Elena Morotti

Convolutional Neural Networks (CNNs) have achieved promising results in medical image segmentation. However, CNNs require lots of training data and are incapable of handling pose and deformation of objects. Furthermore, their pooling layers…

计算机视觉与模式识别 · 计算机科学 2022-06-28 Minh Tran , Viet-Khoa Vo-Ho , Ngan T. H. Le

In computed tomographic imaging, model based iterative reconstruction methods have generally shown better image quality than the more traditional, faster filtered backprojection technique. The cost we have to pay is that MBIR is…

图像与视频处理 · 电气工程与系统科学 2023-09-26 Obaidullah Rahman , Madhuri Nagare , Ken D. Sauer , Charles A. Bouman , Roman Melnyk , Brian Nett , Jie Tang

We propose methods to train convolutional neural networks (CNNs) with both binarized weights and activations, leading to quantized models that are specifically friendly to mobile devices with limited power capacity and computation…

计算机视觉与模式识别 · 计算机科学 2022-06-07 Bohan Zhuang , Chunhua Shen , Mingkui Tan , Peng Chen , Lingqiao Liu , Ian Reid

We propose a generalized convolutional neural network (CNN) architecture that first decomposes the input signal into subbands by an adaptive filter bank structure, and then uses convolutional layers to extract features from each subband…

图像与视频处理 · 电气工程与系统科学 2023-06-30 Pavel Sinha , Ioannis Psaromiligkos , Zeljko Zilic

Light-weight convolutional neural networks (CNNs) suffer performance degradation as their low computational budgets constrain both the depth (number of convolution layers) and the width (number of channels) of CNNs, resulting in limited…

计算机视觉与模式识别 · 计算机科学 2020-04-02 Yinpeng Chen , Xiyang Dai , Mengchen Liu , Dongdong Chen , Lu Yuan , Zicheng Liu

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

Restoring high-quality CT images from low dose CT counterparts is an ill-posed, nonlinear problem to which Deep Learning approaches have been giving superior solutions compared to classical model-based approaches. In this article, a…

图像与视频处理 · 电气工程与系统科学 2019-10-16 Shabab Bazrafkan , Vincent Van Nieuwenhove , Jan Sijbers

The accurate identification of brain tumors from magnetic resonance imaging (MRI) is essential for timely diagnosis and effective therapeutic intervention. While deep convolutional neural networks (CNNs), particularly those pre-trained on…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Helia Abedini , Saba Rahimi , Reza Vaziri

Convolutional neural networks (CNNs) have achieved remarkable success in automatically segmenting organs or lesions on 3D medical images. Recently, vision transformer networks have exhibited exceptional performance in 2D image…

图像与视频处理 · 电气工程与系统科学 2022-07-18 Qiran Jia , Hai Shu

We propose methodologies to train highly accurate and efficient deep convolutional neural networks (CNNs) for image super resolution (SR). A cascade training approach to deep learning is proposed to improve the accuracy of the neural…

计算机视觉与模式识别 · 计算机科学 2017-11-15 Haoyu Ren , Mostafa El-Khamy , Jungwon Lee

Remarkable progress has been made in image recognition, primarily due to the availability of large-scale annotated datasets and the revival of deep CNN. CNNs enable learning data-driven, highly representative, layered hierarchical image…

计算机视觉与模式识别 · 计算机科学 2016-02-11 Hoo-Chang Shin , Holger R. Roth , Mingchen Gao , Le Lu , Ziyue Xu , Isabella Nogues , Jianhua Yao , Daniel Mollura , Ronald M. Summers

Convolutional Neural Networks (CNNs) are highly effective for image reconstruction problems. Typically, CNNs are trained on large amounts of training images. Recently, however, un-trained CNNs such as the Deep Image Prior and Deep Decoder…

图像与视频处理 · 电气工程与系统科学 2021-04-29 Mohammad Zalbagi Darestani , Reinhard Heckel

Convolutional neural network (CNN) has been widely used for vision-based tasks. Due to the high computational complexity and memory storage requirement, it is hard to directly deploy a full-precision CNN on embedded devices. The…

计算机视觉与模式识别 · 计算机科学 2018-02-06 Yixing Li , Fengbo Ren

Purpose: The goal of this study is to develop a novel deep learning (DL) based reconstruction framework to improve the digital breast tomosynthesis (DBT) imaging performance. Methods: In this work, the DIR-DBTnet is developed for DBT image…

MRI-Linac systems require fast image reconstruction with high geometric fidelity to localize and track tumours for radiotherapy treatments. However, B0 field inhomogeneity distortions and slow MR acquisition potentially limit the quality of…

Compressed sensing magnetic resonance imaging (CS-MRI) is a theoretical framework that can accurately reconstruct images from undersampled k-space data with a much lower sampling rate than the one set by the classical Nyquist-Shannon…

医学物理 · 物理学 2020-05-19 Maosong Ran , Wenjun Xia , Yongqiang Huang , Zexin Lu , Peng Bao , Yan Liu , Huaiqiang Sun , Jiliu Zhou , Yi Zhang

X-ray imaging dose from serial cone-beam CT (CBCT) scans raises a clinical concern in most image guided radiation therapy procedures. It is the goal of this paper to develop a fast GPU-based algorithm to reconstruct high quality CBCT images…

医学物理 · 物理学 2015-05-19 Xun Jia , Bin Dong , Yifei Lou , Steve B. Jiang

The conventional spatial convolution layers in the Convolutional Neural Networks (CNNs) are computationally expensive at the point where the training time could take days unless the number of layers, the number of training images or the…

计算机视觉与模式识别 · 计算机科学 2021-06-25 Ee Fey Goh , ZhiYuan Chen , Wei Xiang Lim

Cone-beam computed tomography (CBCT) is an imaging modality widely used in head and neck diagnostics due to its accessibility and lower radiation dose. However, its relatively long acquisition times make it susceptible to patient motion,…