为了快速获得准确的弹创空腔三维模型,首先对用X射线以正交方式同步拍摄的两张瞬时创伤空腔图像进行格式转换、对比度调整和除噪等预处理,然后采用水平集算法提取正交图像的边缘轮廓,最后在对瞬时创伤空腔剖面形状进行椭圆近似的基础上,利用Matlab强大的数据可视化功能进行三维重构。结果表明,该方法建立的弹创空腔三维模型直观、有效,可以为弹药设计和战伤救治提供理论依据。

In order to quickly obtain accurate 3D model of wound cavity, Firstly, the orthogonal images synchronous photographed by x-ray were preprocessed by format conversion, contrast adjustment and denoise. Secondly, the edge contour can be extracted through level set method, and ellipse can be used to approximate the cavity cross-section. At last, the three-dimensional reconstruction was completed through the powerful data visualization of Matlab. The results show that this method gives visual and effective 3D model of wound cavity and provides a theoretical basis for ammunition design and wound treatment.