Solid Rocket Motor Sectional View Reconstruction form X-Ray Films
摘 要
固体火箭发动机切向X射线实际检测结果是稀疏视角型和截断型数据,其检测胶片只能显示二维重叠影像信息,显示结果不直观。在滤波反投影算法的基础上,提出了根据X射线胶片信息进行固体火箭发动机断面局部感兴趣区域(ROI)图像重建方法。仿真计算表明,在有限角度切向照相情况下,该方法对固体火箭发动机切向缺陷,特别是脱粘缺陷的断面图像重建有效。
Abstract
Incomplete projection data was obtained by X-ray tangential detection of solid rocket motor. Superposition of defect information in X-ray film made judging work some difficult. In this paper, a method based on filter back projection algorithm was presented to reconstruct region of interesting in sectional view of solid rocket motor using the projection information of X-ray film. The simulation result showed that this method was effective for tangential defect especially the debonding in Solid Rocket Motor on the occasion of limited-angle and tangential detection.
中图分类号 TG115.28
所属栏目 科研成果与学术交流
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收稿日期 2010/5/4
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备注艾春安(1964- ),男,教授,博士生导师,主要研究方向为动力系统无损检测技术。
引用该论文: AI Chun-An,SANG Yuan,XU Zhi-Gao,LIU Yu. Solid Rocket Motor Sectional View Reconstruction form X-Ray Films[J]. Nondestructive Testing, 2011, 33(3): 1~4
艾春安,桑元,徐志高,刘瑜. 基于X射线胶片的固体火箭发动机断面图像重建[J]. 无损检测, 2011, 33(3): 1~4
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参考文献
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【2】美国无损检测学会编.美国无损检测手册射线卷[M].上海:世界图书出版公司,1992:353-360.
【3】Avinash C.Kak, Malcolm Slaney. Principles of Computerized Tomographic Imaging[M]. New York: IEEE Press,1988:63-68.
【4】朱秀昌,刘峰,胡栋.数字图像处理与图像通信[M].北京:北京邮电大学出版社,2002:124-126.
【5】庄天戈.CT理论与算法[M].上海:上海交通大学出版社,1992:2-3.
【6】Robert G.Keys. Cubic Convolution Interpolation for Digital Image Processing[J]. IEEE Trans on Acoustics, Speech and Singal Processing,1981,29(6):1153-1160.
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