Volume 38, Issue 2

X-ray tomography is a reliable tool for determining the inner structure of 3-D object with penetrating X-rays. However, traditional reconstruction methods, such as Feldkamp–Davis–Kress (FDK), require dense angular sampling in the data acquisition phase leading to long measurement times, especially in X-ray micro-tomography to obtain high-resolution scans. Acquiring less data using greater angular ...

X射线断层扫描是一种利用穿透性X射线确定三维物体内部结构的可靠工具。然而，传统的重建方法，如Feldkamp-Davis-Kress (FDK)，在数据采集阶段需要密集的角度采样，导致测量时间较长，尤其是在X射线显微断层扫描中获取高分辨率扫描时。通过使用更大的角度获取更少的数据...

The aim of this paper is to develop and evaluate a novel imaging method [spatial gradient sparse in frequency domain (SSF)] for the reconstruction of activation sequences of ventricular arrhythmia from noninvasive body surface potential map (BSPM) measurements. We formulated and solved the electrocardiographic inverse problem in the frequency domain, and the activation time was encoded in the phas...

本文旨在开发并评估一种新型成像方法（频域空间梯度稀疏，SSF），用于从无创体表电位图（BSPM）测量中重建心室心律失常的激活序列。我们在频域中构建并求解了心电图逆问题，激活时间被编码在相位...

Data-driven methods, such as principal component analysis and independentcomponent analysis, have been successfully applied to functionalmagnetic resonance imaging (fMRI) data in particular and neuro-imaging data in general. A central issue of thesemethods is the importance of correctly selecting the number of components to be used in the factor model. This issue is often addressed using a model s...

数据驱动方法，如主成分分析和独立成分分析，已成功应用于功能磁共振成像（fMRI）数据，特别是神经影像数据。这些方法的一个核心问题是正确选择因子模型中使用的成分数量。该问题通常通过模型选择方法来解决...

Current computed tomography (CT) image reconstruction methods generally assume that a complete and consistent data set was acquired during data acquisition. In practice, however, the acquired data are often not consistent from one view angle to another. In this case, the application of a well-developed image reconstruction algorithm to an inconsistent data set still generates artifacts in the reco...

当前的计算机断层扫描（CT）图像重建方法通常假设在数据采集过程中获取了完整且一致的数据集。然而在实际中，采集到的数据在不同视角之间往往不一致。在这种情况下，将成熟的图像重建算法应用于不一致的数据集仍会在重建图像中产生伪影...

In this paper, we consider dense volumetric modeling of moving samples such as body parts. Most dense modeling methods consider samples observed with a moving X-ray device and cannot easily handle moving samples. We propose instead a novel method to observe shape motion from a fixed X-ray device and to build dense in-depth attenuation information. This yields a low-cost, low-dose 3-D imaging solut...

本文考虑运动样本（如身体部位）的密集体积建模。大多数密集建模方法考虑的是由移动X射线设备观察的样本，难以处理移动样本。我们提出了一种新方法，通过固定X射线设备观察形状运动，并构建密集的深度衰减信息。这产生了低成本、低剂量的三维成像解决方案...

Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.

列出了本期出版物的编辑委员会、理事会、现任工作人员、委员会成员和/或学会编辑。

Presents a listing of the editorial board, board of governors, current staff, committee members, and/or society editors for this issue of the publication.

提供本期出版物的编辑委员会、理事会、现任工作人员、委员会成员和/或学会编辑名单。

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这些说明为本刊投稿准备论文提供指南。提供在本期刊发表论文的作者所需信息。