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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
【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 3D reconstruction method was developed using orthogonal flash Xray images of wound ballistics in a gelatin cavity to overcome troditional film imaging disadvantages. The wound cavity images were obtained using a ns grade multidetector flash Xray imaging system. The image was approximated using nonuniform Bspline surfaces with an elliptic approximation to the cavity crosssection. The image processing included abstracting the reference points from the images and use of OpenGL virtual reality technology. The method gives digital and visual 3dimensional 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