三维数据可视化下爆炸品虚拟拆卸环境仿真

Simulation of Explosive Virtual Disassembly Environment Based on 3D Data Visualization

为了明确爆炸品当前状态是否能够实施拆卸工作,需要对爆炸品拆卸环境危险性进行有效评估,因此提出一种基于序列图像的爆炸品虚拟拆卸环境模拟方法。首先根据平面和圆柱面两种类别几何面映射获得每个接触面的可见范围,计算可拆卸方向,达到虚拟环境交互拆卸目标;其次把原始图像分解到Contourlet转换域,在不同尺度与方向的子带内加入区域特征,再运用融合原则获取爆炸品融合图像,提供更好的可视化视觉成效;最后降低图像坐标值最小几何偏差,对爆炸品图像三维结构和相机参数实施全局优化处理,完成爆炸品虚拟拆卸环境仿真。实验结果证明,所提方法爆炸品虚拟拆卸方法具有较高的环境特征点匹配精度和仿真效率,可准确提供各类信息数值,为防爆工作高效率执行提供可行思路。

In order to determine whether the current state of explosive can be dismantled,it is necessary to effectively evaluate the environmental risk of explosive dismantlement.Therefore,a method of simulating virtual environment of explosive dismantlement based on sequence image was proposed.Firstly,the visible range of contact surface was obtained by the mapping of flat surface and cylindrical surface,and the direction of dismantlement was calculated to achieve the interactive dismantlement in virtual environment.Secondly,the original image was decomposed into Contourlet transform domain,and the regional features were added in the sub-bands of different scales and directions.Moreover,the fusion principle was used to obtain the fusion image of explosives and thus to provide better visual effect.Finally,the minimum geometric deviation of image coordinate value was reduced.Meanwhile,the three-dimensional structure of explosive image and the camera parameters were optimized globally.Thus,the simulation of virtual dismantlement environment of explosives was completed.Simulation results show that the proposed method has high matching accuracy and simulation efficiency of environmental feature points,so it can provide all kinds of information values accurately and feasible ideas for high-efficiency explosion-proof work.