Approximate and exact cone-beam reconstruction with standard and non-standard spiral scanning
作者： Ge Wang , Yangbo Ye , Hengyong Yu
DOI: 10.1088/0031-9155/52/6/R01
关键词:
摘要: The long object problem is practically important and theoretically challenging. To solve the problem, spiral cone-beam CT was first proposed in 1991, has been extensively studied since then. As a main feature of next generation medical CT, greatly improved over past several years, especially terms exact image reconstruction methods. Now, it well established that volumetric images can be exactly efficiently reconstructed from longitudinally truncated data collected along rather general scanning trajectory. Here we present an overview some key results this area.
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