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high resolution X-ray computed tomography

Using High Resolution X-ray Computed Tomography to Create an Image Based Model of a Lymph Node

Using High Resolution X-ray Computed Tomography to Create an Image Based Model of a Lymph Node

... present high resolution X-ray computed tomography images of a murine lymph ...The high contrast between different structures within the lymph node provided by phase ...

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Advances in 3D imaging and volumetric reconstruction of fluid and melt inclusions by high resolution X-ray computed tomography

Advances in 3D imaging and volumetric reconstruction of fluid and melt inclusions by high resolution X-ray computed tomography

... by high resolution X-ray computed tomography Antonin Richard 1, *, Christophe Morlot 1 , Laura Créon 2,3 Nicolas Beaudoin 4,5,6 , Vladimir ...

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Monitoring fungal infection in maize with high resolution X-ray micro computed tomography

Monitoring fungal infection in maize with high resolution X-ray micro computed tomography

... micro-computed tomography (X-ray micro-CT) is a powerful technique for visualisation and characterisation of the internal microstructure of food products at high resolution ...

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Computed Tomography Resolution Enhancement by Integrating High-Resolution 2D X-Ray Images into the CT reconstruction

Computed Tomography Resolution Enhancement by Integrating High-Resolution 2D X-Ray Images into the CT reconstruction

... 2.2 High-resolution 2D images The next step is to create the high-resolution 2D images (see ...the X-ray ...the X-ray source to the detector, the source-object ...

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Theoretical and Experimental Evaluation of Spatial Resolution in a Variable Resolution X-Ray Computed Tomography Scanner

Theoretical and Experimental Evaluation of Spatial Resolution in a Variable Resolution X-Ray Computed Tomography Scanner

... the x-ray cross-talk and has indicated the need for anti-scatter collimation and optimization of the x-ray tube ...achieving high-quality reconstruction, a method to calibrate the ...

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X ray computed tomography for additive manufacturing: a review

X ray computed tomography for additive manufacturing: a review

... the most reliable non-destructive method of evaluating pore distribution within parts. It should however be noted that unlike XCT where a small sample is preferable to increase the achievable magnification, Archimedes ...

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Instance segmentation and material classification in X-ray computed tomography

Instance segmentation and material classification in X-ray computed tomography

... 3.5 Conclusion In this chapter, we redefined and modified the DBSCAN algorithm, and applied it as a practical non-proposal instance separation tool. By properly tuning the clustering parameters, we further removed the ...

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X ray Computed Tomography for Micro Porosity in AZ91D Alloy

X ray Computed Tomography for Micro Porosity in AZ91D Alloy

... the X-ray source intensity I: the recorded intensity The reconstructed image based on this map of X-ray linear attenuation coefficient, shows the position, size, and compo- sition of the objects ...

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Effects of magnification and sampling resolution in X ray computed tomography for the measurement of additively manufactured metal surfaces

Effects of magnification and sampling resolution in X ray computed tomography for the measurement of additively manufactured metal surfaces

... and resolution increases is even more evident in this figure than in figure 6, because of the absence of the smoothing effect introduced in the upper, mean and lower surfaces by the statistical ...in ...

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Partially Coherent Lab Based X ray Micro Computed Tomography

Partially Coherent Lab Based X ray Micro Computed Tomography

... current high-resolution micro- and even sub-micro-CT, due to the ever increasing resolution of X-ray detectors, CT reconstructed im- age’s voxels are becoming smaller than the spot size ...

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Image Reconstruction for X-ray Computed Tomography in Security Screening Applications

Image Reconstruction for X-ray Computed Tomography in Security Screening Applications

... clean high-resolution scan in Figure ...also computed using filtered back projection, the filter having a ramp frequency response multiplied by a Hamming window, and a cutoff frequency of ...

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Observations of mineralised tissues of teeth in X-ray micro-computed tomography

Observations of mineralised tissues of teeth in X-ray micro-computed tomography

... spot X-ray tube, which provides higher resolution ...when X-ray source and detector remain in the same position during the ...higher resolution possible, which reaches submicron ...

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High throughput phenotyping of morpho-anatomical stem properties using X-ray computed tomography in sorghum

High throughput phenotyping of morpho-anatomical stem properties using X-ray computed tomography in sorghum

... their resolution and capacity to detect external and internal phenotypic information in a non-invasive and non-destructive manner, combined with the abil- ity to automate the process, has made the micro-CT the ...

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High resolution computed tomography in chronic obstructive pulmonary disease

High resolution computed tomography in chronic obstructive pulmonary disease

... Additional diagnoses like bronchiectasis, mass, ILD were identified in 28% cases. Conclusions: HRCT plays a significant role in COPD patients in differentiating phenotypes which have different modes of therapy. Other ...

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Evaluation of factors that affect contrast-detail in digital X-Ray and computed tomography

Evaluation of factors that affect contrast-detail in digital X-Ray and computed tomography

... spatial resolution. For example, with CT imaging of high contrast structures—such as the detection of polyps from a background consisting of air in CT colonography—higher noise level and lower radiation ...

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Overcoming the fragility – X-ray computed micro-tomography elucidates brachiopod endoskeletons

Overcoming the fragility – X-ray computed micro-tomography elucidates brachiopod endoskeletons

... using high resolution SEM-imaging, a pictured overview of the occurrence, abundance and exact spatial distribu- tion of endoskeletal spicules within the soft body has been lacking – until ...

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Basics of Clinical X-Ray Computed Tomography

Basics of Clinical X-Ray Computed Tomography

... – ASSR and EPBP (cone-beam recon) – Phase-correlated CT (e.g. cardiac CT) • Image quality and dose – Spatial resolution (PSF, SSP, MTF) – Relation of noise, dose and resolution – Dose values (CTDI, patient ...

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The introduction of high-resolution computed tomography

The introduction of high-resolution computed tomography

... of the lung, whereas blebs occur typically in the lung apices. Complicating the clean dichotomy above is the fact that young thin spontaneous pneumothorax patients frequently have bulla-like subpleural separations of ...

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High-energy, high-resolution, fly-scan X-ray phase tomography

High-energy, high-resolution, fly-scan X-ray phase tomography

... either high speed by using a single-shot tracking mode or high spatial resolution with multi-frame scanning ...spatial resolution is deteriorated due to the use of a large correlation window ...

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THE invention of X-ray computed tomography (CT) has

THE invention of X-ray computed tomography (CT) has

... Abstract—Differential phase-contrast computed tomography (DPC-CT) is a powerful analysis tool for soft-tissue and low- atomic-number samples. Limited by the implementation con- ditions, DPC-CT with ...

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