内部层析成像的意义。
The meaning of interior tomography.
机构信息
Biomedical Imaging Cluster, Department of Biomedical Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.
出版信息
Phys Med Biol. 2013 Aug 21;58(16):R161-86. doi: 10.1088/0031-9155/58/16/R161. Epub 2013 Aug 2.
Abstract
The classic imaging geometry for computed tomography is for the collection of un-truncated projections and the reconstruction of a global image, with the Fourier transform as the theoretical foundation that is intrinsically non-local. Recently, interior tomography research has led to theoretically exact relationships between localities in the projection and image spaces and practically promising reconstruction algorithms. Initially, interior tomography was developed for x-ray computed tomography. Then, it was elevated to have the status of a general imaging principle. Finally, a novel framework known as 'omni-tomography' is being developed for a grand fusion of multiple imaging modalities, allowing tomographic synchrony of diversified features.
摘要
计算机断层扫描的经典成像几何结构用于采集未截断的投影并重建全局图像，傅里叶变换作为理论基础具有内在的非局部性。最近，内部层析成像研究导致了投影和图像空间中局部性之间的理论精确关系，并提出了实际有前途的重建算法。最初，内部层析成像用于 X 射线计算机断层扫描。然后，它被提升为具有通用成像原理的地位。最后，正在为多种成像方式的大融合开发一种称为“全层析成像”的新框架，允许各种特征的层析同步。
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