使用台式在线 X 射线相衬系统获取的肺部图像的散斑特征描述。
Characterization of speckle in lung images acquired with a benchtop in-line x-ray phase-contrast system.
机构信息
Department of Biomedical Engineering, Washington University in St Louis, St Louis, MO 63130, USA.
出版信息
Phys Med Biol. 2013 Jun 21;58(12):4237-53. doi: 10.1088/0031-9155/58/12/4237. Epub 2013 May 29.
Abstract
We investigate the manifestation of speckle in propagation-based x-ray phase-contrast imaging of mouse lungs in situ by use of a benchtop imager. The key contributions of the work are the demonstration that lung speckle can be observed by use of a benchtop imaging system employing a polychromatic tube-source and a systematic experimental investigation of how the texture of the speckle pattern depends on the parameters of the imaging system. Our analyses consists of image texture characterization based on the statistical properties of pixel intensity values.
摘要
我们通过使用台式成像仪研究了基于传播的小鼠原位肺部 X 射线相衬成像中的散斑表现。本工作的主要贡献在于证明了使用具有多色管源的台式成像系统可以观察到肺部散斑，并系统地研究了散斑图案的纹理如何取决于成像系统的参数。我们的分析包括基于像素强度值的统计特性的图像纹理特征描述。
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