弹丸侵彻明胶靶标的毁伤参数获取方法

摘要

To accurately obtain the parameters of bullet damaging gelatin target,the digital image-processing technology on the basis of improved adaptive mean filter and outline tracking method were put forward to segment contour line of gelatin target.The 3-D modeling technology was used to build 3-D model of damaged cavity,which was based on the methods such as removing pseudo contour-line,polynomial fitting,removing horn according to tangent-line-slope difference and ellipse cross-section method.The penetrated gelatin image shot by the super-speed imaging system was applied to test the method.The three important damage parameters were calculated exactly,including the maximum winking cavity volume,the narrow tract wound length and the transmitted kinetic energy numeric of bullet.The study offers a feasible method to evaluate the damage efficiency of small arm.%为准确获取枪弹对明胶靶标的毁伤参数，采用基于改进型自适应均值滤波、二值化轮廓跟踪法的数字图像预处理技术，实现了被侵彻明胶靶标正交图像的空腔轮廓线提取；采用基于去除伪轮廓线、多项式拟合、切线斜率差去尖角、椭圆截面法的三维建模技术，建立了毁伤空腔模型。以高速摄影系统拍摄的弹丸侵彻明胶靶标图像为实例，对模型进行了验证，计算出了3个重要毁伤参数，即弹丸侵彻最大瞬时空腔体积、窄伤道长度、动能传递量，为枪械杀伤效能评估研究提供了一种可行方法。