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arXiv 2211.01375physics.med-pheess.IVphysics.comp-ph
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用统一调制模式分析(UMPA)模型高速处理X射线波前标记数据

High-speed processing of X-ray wavefront marking data with the Unified Modulated Pattern Analysis (UMPA) model

Fabio De Marco, Sara Savatović, Ronan Smith, Vittorio Di Trapani, Marco Margini, Ginevra Lautizi, Pierre Thibault

摘要:

波前标记X射线成像技术使用例如,用砂纸或光栅产生强度波动,并分析它们因样品而产生的畸变,以便恢复衰减、相衬和暗场信息。相衬产生一个改进的可见性的软组织标本,而暗场揭示了小角度散射从亚分辨率结构。两者都有许多生物医学和工程应用。以前开发的统一调制模式分析(UMPA)模型提取这些模式的波前标记数据。我们在这里提出了一个新的UMPA实现,能够快速处理大型数据集,并具有极大地扩展视野的功能。我们还讨论了可能的工件和额外的新功能。

英文摘要:

Wavefront-marking X-ray imaging techniques use e.g., sandpaper or a grating to generate intensity fluctuations, and analyze their distortion by the sample in order to retrieve attenuation, phase-contrast, and dark-field information. Phase contrast yields an improved visibility of soft-tissue specimens, while dark-field reveals small-angle scatter from sub-resolution structures. Both have found many biomedical and engineering applications. The previously developed Unified Modulated Pattern Analysis (UMPA) model extracts these modalities from wavefront-marking data. We here present a new UMPA implementation, capable of rapidly processing large datasets and featuring capabilities to greatly extend the field of view. We also discuss possible artifacts and additional new features.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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