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固体火箭发动机CT图像条状伪影校正

卢洪义 陈庆贵 周红梅 赵汝岩 张宗伟 喻舟

卢洪义, 陈庆贵, 周红梅, 赵汝岩, 张宗伟, 喻舟. 固体火箭发动机CT图像条状伪影校正[J]. 航空动力学报, 2016, 31(10): 2515-2521. doi: 10.13224/j.cnki.jasp.2016.10.027
引用本文: 卢洪义, 陈庆贵, 周红梅, 赵汝岩, 张宗伟, 喻舟. 固体火箭发动机CT图像条状伪影校正[J]. 航空动力学报, 2016, 31(10): 2515-2521. doi: 10.13224/j.cnki.jasp.2016.10.027
LU Hong-yi, CHEN Qing-gui, ZHOU Hong-mei, ZHAO Ru-yan, ZHANG Zong-wei, YU Zhou. Streak artifacts correction of solid rocket motor's CT image[J]. Journal of Aerospace Power, 2016, 31(10): 2515-2521. doi: 10.13224/j.cnki.jasp.2016.10.027
Citation: LU Hong-yi, CHEN Qing-gui, ZHOU Hong-mei, ZHAO Ru-yan, ZHANG Zong-wei, YU Zhou. Streak artifacts correction of solid rocket motor's CT image[J]. Journal of Aerospace Power, 2016, 31(10): 2515-2521. doi: 10.13224/j.cnki.jasp.2016.10.027

固体火箭发动机CT图像条状伪影校正

doi: 10.13224/j.cnki.jasp.2016.10.027
基金项目: 

国家自然科学基金(51005242)

详细信息
    作者简介:

    卢洪义(1965-),男,山东莱阳人,教授、博士生导师,博士,主要从事固体火箭发动机使用工程研究.

  • 中图分类号: V435

Streak artifacts correction of solid rocket motor's CT image

  • 摘要: 为了校正窄角扇束工业CT扫描重建的固体火箭发动机图像中的条状伪影,分析了条状伪影的产生原因.针对条状伪影是由重排和数据对齐后固体火箭发动机投影数据的非光滑连续性引起的,提出了条状伪影校正的两种算法.两种算法均以中间平移步数的投影数据为基准进行投影数据的重排,一种将重排和数据对齐过程分开处理;另一种将重排和数据对齐过程合并处理.为了验证两种条状伪影校正算法的有效性,采用窄角扇束工业CT对某型固体火箭发动机进行3种不同扫描步长的扫描和重建.结果表明重排和数据对齐过程分开处理的校正算法只有在小步长扫描的情况下重建效果较好,条状伪影较少;而重排和数据对齐过程合并处理的校正算法在3种不同的扫描步长下图像重建质量均较好,条状伪影较少.

     

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出版历程
  • 收稿日期:  2015-01-23
  • 刊出日期:  2016-10-28

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