北京航空航天大学学报 ›› 2003, Vol. 29 ›› Issue (1): 9-12.

• 论文 • 上一篇    下一篇

一种新颖的ICT扫描方式及其FBP重构算法

傅健, 路宏年   

  1. 北京航空航天大学 机械工程及自动化学院
  • 收稿日期:2001-06-19 出版日期:2003-01-31 发布日期:2010-09-27
  • 作者简介:傅 健(1976-),男,四川泸州人,博士生,100083,北京.

Novel ICT Scan Mode and Its FBP Reconstruction Algorithm

Fu Jian, Lu Hongnian   

  1. School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics
  • Received:2001-06-19 Online:2003-01-31 Published:2010-09-27

摘要: 计算机层析成像检测的突出问题是获取一幅图像的时间太长.为了缩短较大尺寸构件层析成像检测的二代(TR,Transverse Rotation)扫描时间,讨论了一种准三代(RR,Rotation and Rotation)扫描的概念,推导了它的滤波反投影算法. 计算机模拟结果证明了该算法的正确性. 分析表明,在同样检测条件下,它的扫描速度将比TR提高3倍以上.

Abstract: It is well known that Industrial Computed Tomography (ICT) is hampered by the matter of time to acquire an image severely. A scan concept called RR (Rotation and Rotation) was argued to save the scan time of large components ICT testing with TR(Transverse Rotation). Its reconstruction algorithm based on filter back-projection algorithm was presented. The validity of the algorithm was proved by computer simulation results. Analysis indicated that the scan speed can be improved at least three times, compared with that of TR limited by the same testing conditions.

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