Novel ICT Scan Mode and Its FBP Reconstruction Algorithm
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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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Key words:
- tomography /
- penetrating radiation tests /
- scanning /
- filter back-projection algorithm
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