基于VR技术的三维动态激光成像技术研究

Research of three dimensional dynamic laser imaging technology based on VR technology

传统采用稠密匹配方法实现三维激光成像，对场景表面光滑度要求较高，存在空洞和局部错误等弊端。因此，提出基于VR技术的三维动态激光成像技术，分析基于VR的三维动态激光成像系统的体系结构，并设计基于MultigenCreator的虚拟三维动态激光成像建模方案，采用Creator以及3dsMax等工具，通过数据准备、纹理映射、场景构建等过程，塑造逼真的虚拟三维动态激光成像场景。采用Vega软件中Pathed和Navagator模块实现待测对象的三维动态激光成像的漫游路径的动态调控以及动态激光成像的仿真系统的设计。通过激光雷达点引导立体匹配理论实现三维动态激光雷达点的精准配准，获取逼真的虚拟三维动态激光图像。实验结果说明，所提方法具有较高的分辨率和配准率．能够实现三维动态激光图像的高精序雷建．

Adopting dense matching to realize 3D laser imaging, the traditional method requires high level of sur face smoothness, and has the defects like voids and local errors. Therefore, the 3D dynamic laser imaging based on VR technology is proposed. The structure of 3D dynamic imaging system based on VR is analyzed. The modeling scheme of virtual 3D dynamic laser imaging based on Multigen Creator is designed. Adopting Creator and 3dsMax to shape vivid virtual 3D dynamic laser imaging scene through data preparation, texture mapping and scene construction. Realize dynamic modulation of roam path to be tested and simulation system design of dynamic laser imaging through the Pathed and Navagater modules in Vega software. Achieve accurate registration of ladar points through the principle of guided stereo matching. And the vivid images are obtained. Experimental results show that this method has high resolution rate and registration rate, and it can realize Precise reconstruetion.