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明胶弹创空腔闪光X射线投影图像三维重建

Gelatin cavity 3-D reconstruction from flash X-ray images of wound ballistics

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【作者】 林勇王经瑾宋征郑溥堂

【Author】 LIN Yong1, WANG Jingjin1, SONG Zheng1, ZHENG Putang2(1. Department of Engineering Physics, Tsinghua University, Beijing 100084, China; 2. Beijing Nuclear Instrument Factory, Beijing 100080, China)

【机构】 清华大学工程物理系北京核仪器厂 北京100084北京100084北京100080

【摘要】 用明胶模拟肌肉作为标靶,使用正交的闪光X射线和ns级数字化闪光X射线成像系统,拍摄模拟弹创的明胶空腔,以弥补传统的胶片成像之不足。在获取明胶空腔投影图像的基础上,对弹创空腔截面进行椭圆近似,建立了弹创空腔的非均匀B样条曲面模型,提取非均匀B样条曲面控制节点,然后采用OpenGL虚拟现实技术实现了明胶弹创空腔的三维重建。为研究创伤弹道提供了有力的手段和工具。

【Abstract】 A 3D reconstruction method was developed using orthogonal flash Xray images of wound ballistics in a gelatin cavity to overcome troditional film imaging disadvantages. The wound cavity images were obtained using a ns grade multidetector flash Xray imaging system. The image was approximated using nonuniform Bspline surfaces with an elliptic approximation to the cavity crosssection. The image processing included abstracting the reference points from the images and use of OpenGL virtual reality technology. The method gives digital and visual 3dimensional cavity images and is a powerful mean for analyzing wound ballistics.

  • 【文献出处】 清华大学学报(自然科学版) ,Journal of Tsinghua University(Science and Technology) , 编辑部邮箱 ,2002年12期
  • 【分类号】R82
  • 【被引频次】9
  • 【下载频次】112
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