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相关论文: Tomographic X-ray data of 3D cross phantom

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This is the documentation of the tomographic X-ray data of emoji phantom made available at https://zenodo.org/record/1183532#.WpA35Y5rIy1. The data can be freely used for scientific purposes with appropriate references to the data and to…

医学物理 · 物理学 2018-02-27 Alexander Meaney , Zenith Purisha , Samuli Siltanen

This is the documentation of the tomographic X-ray data of a carved cheese slice. Data are available at www.fips.fi/dataset.php, and can be freely used for scientific purposes with appropriate references to them, and to this document in…

This is the documentation of the tomographic X-ray data of a lotus root, filled with four different attenuating objects, of different sizes. Data are available at www.fips.fi/dataset.php, and can be freely used for scientific purposes with…

数据分析、统计与概率 · 物理学 2016-10-14 Tatiana A. Bubba , Andreas Hauptmann , Simo Huotari , Juho Rimpeläinen , Samuli Siltanen

This is the documentation of the tomographic X-ray data of a walnut made available at http://www.fips.fi/dataset.php . The data can be freely used for scientific purposes with appropriate references to the data and to this document in…

数据分析、统计与概率 · 物理学 2015-02-16 Keijo Hämäläinen , Lauri Harhanen , Aki Kallonen , Antti Kujanpää , Esa Niemi , Samuli Siltanen

This is the documentation for dynamic X-ray tomography measurements of a gel phantom diffused with potassium iodide contrast agent. The measured data and additional materials are available at http://www.fips.fi/dataset.php and Zenodo…

图像与视频处理 · 电气工程与系统科学 2023-05-01 Tommi Heikkilä , Hanna Help , Alexander Meaney

This is the documentation of Computed Tomography (CT) data of a pen-spring. The open data set is available at https://zenodo.org/record/3266936#.XRyMdCZS9oA and can be freely used for scientific purposes with appropriate references to the…

医学物理 · 物理学 2019-07-04 Juliaana Juurakko , Zenith Purisha , Simo Särkkä

This is the documentation for Spatio-TEmporal Motor-POwered (STEMPO) phantom for dynamic X-ray tomography. Provided are different measurements designed for testing dynamic tomography reconstruction algorithms. The measured data and…

图像与视频处理 · 电气工程与系统科学 2025-08-05 Tommi Heikkilä

This is the documentation of the 3D dynamic tomographic X-ray (CT) data of a ladybug. The open data set is available https://zenodo.org/record/3375488#.XV_T3vxS9oA and can be freely used for scientific purposes with appropriate references…

医学物理 · 物理学 2019-08-26 Juliaana Juurakko , Zenith Purisha , Simo Särkkä

Phantoms can serve as a gold standard for the validation of MRI numerical methods. In some special cases, it is possible to compute analytically the Radon transform, or sinogram, of a phantom. In this work, we present analytical formulae to…

数值分析 · 数学 2023-02-14 Monica Dessole , Marta Gatto , Davide Poggiali , Francesca Tedeschi

X-ray CT dose measurement has mainly been performed using an ionization chamber dosimeter. Therefore, the dose distribution has not been sufficiently studied. We investigated the importance of evaluating the two or three-dimensional dose…

X-ray tomography is a powerful volumetric imaging technique, but detailed three dimensional (3D) imaging requires the acquisition of a large number of individual X-ray images, which is time consuming. For applications where spatial…

图像与视频处理 · 电气工程与系统科学 2023-02-28 Zhenduo Shang , Thomas Blumensath

The translation of an early (1958), Russian article by B. I. Korenblum, S. I. Tetelbaum and A. A. Tyutin on the development of x-ray computed tomography is provided. A new method to acquire cross-sectional x-ray images is studied which is…

图像与视频处理 · 电气工程与系统科学 2020-04-09 Alex Gustschin

Computed Tomography (CT) is an imaging technique where information about an object are collected at different angles (called projections or scans). Then the cross-sectional image showing the internal structure of the slice is produced by…

图像与视频处理 · 电气工程与系统科学 2022-09-07 Zhengchun Liu , Rajkumar Kettimuthu , Ian Foster

We present a flyscan compatible acquisition scheme for three-modal X-Ray Computed Tomography (CT) with two-dimensional phase sensitivity. Our approach is demonstrated using a "beam tracking" setup, through which a sample's attenuation,…

医学物理 · 物理学 2022-08-26 G. Lioliou , O. Roche i Morgó , S. Marathe , K. Wanelik , S. Cipiccia , A. Olivo , C. K. Hagen

We present a multi-aperture analyser set-up for performing X-ray phase contrast imaging in planar and three-dimensional modalities. A multi-slice representation of the sample is used to establish a quantitative relation between projection…

仪器与探测器 · 物理学 2017-06-21 M. Endrizzi , F. A. Vittoria , L. Rigon , D. Dreossi , A. Olivo

A general framework is presented which unifies the treatment of wavelet-like, quasidistribution, and tomographic transforms. Explicit formulas relating the three types of transforms are obtained. The case of transforms associated to the…

数学物理 · 物理学 2009-11-07 M. A. Man'ko , V. I. Man'ko , R. Vilela Mendes

In the last decade C-arm-based cone-beam CT became a widely used modality for intraoperative imaging. Typically a C-arm scan is performed using a circle-like trajectory around a region of interest. Therefor an angular range of at least…

医学物理 · 物理学 2015-06-11 Ludwig Ritschl , Jan Kuntz , Marc Kachelrieß

For a plane symmetric object we can find two views - mirrored at the plane of symmetry - that will yield the exact same image of that object. In consequence, having one image of a plane symmetric object and a calibrated camera, we can…

We present a practical experimental realization of transmission x-ray ghost imaging using synchrotron light. Hard x-rays from an undulator were split by a Si 200 crystal in Laue geometry to produce two copies of a speckled incident beam.…

仪器与探测器 · 物理学 2019-06-25 Daniele Pelliccia , Margie P. Olbinado , Alexander Rack , David M. Paganin

Computed Tomography (CT) reconstruction is a fundamental component to a wide variety of applications ranging from security, to healthcare. The classical techniques require measuring projections, called sinograms, from a full 180$^\circ$…

计算机视觉与模式识别 · 计算机科学 2018-07-12 Rushil Anirudh , Hyojin Kim , Jayaraman J. Thiagarajan , K. Aditya Mohan , Kyle Champley , Timo Bremer
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