基于图像识别跟踪的增强现实电子沙盘电磁态势展示技术

Electromagnetic situation display technology of augmented reality electronic sandtable based on image recognition and tracking

电磁态势复杂多变、电磁维度信息不可见,传统二维态势无法直观显示战场空间中多维电磁数据的分布,不利于指挥决策的部署。研究了基于图像识别跟踪的增强现实电子沙盘电磁态势展示技术,通过图像局部特征提取算法定位增强现实数字内容的位置,通过视觉信息和惯性测量单元紧耦合优化策略进行持续的六自由度跟踪,从而准确地实现超大规模地形条件下增强现实电磁态势信息的三维建模显示。经过验证,该增强现实电子沙盘电磁态势展示技术实现了400 km×400 km地形规模下全景增强现实电磁态势的分层、多维同屏展示,支持多位指挥员同时以全局作战视角观察战场态势,为指挥员提供了全景、新颖、沉浸式的作战体验。

The electromagnetic situation is complex and changeable,and the electromagnetic dimension information is invisible.The traditional two-dimensional situation can not directly display the distribution of multidimensional electromagnetic data in the battlefield space,which is not conducive to the deployment of command and decision.The electromagnetic situation display technology of augmented reality electronic sandtable based on image recognition and tracking is studied.Through the local feature extraction algorithm,the position of the augmented reality digital content is located.Continuous 6-DOF tracking is carried out through the tight coupling optimization strategy of visual information and inertial measurement unit,so as to accurately realize the 3D modeling display of augmented reality electromagnetic situation information under the condition of super-large terrain.It is validated that the augmented reality electronic sandtable electromagnetic situation display technology realizes the layered and multi-dimensional display of panoramic augmented reality electromagnetic situation under the terrain scale of 400 km×400 km,supports multiple commanders to observe the battlefield situation from the global com‐bat perspective at the same time,and provides commanders with a panoramic,novel and immersive combat experience.