基于VR技术的三维图像景区救助人员定位仿真

为了解决传统技术易受外界干扰,造成三维图像景区救助人员视觉特征存在缺失,导致后续定位精度偏低的问题,提出基于VR技术(虚拟现实技术)的三维图像景区救助人员定位方法。对真实景区环境利用激光测量技术(LMS)进行平扫,获得景区三维扫描点云;采用VR技术进行景区图像三维重建,从中设置几何投影模型表示在现实环境中的透视转换模型,通过非线性算法提取描述救助人员的视觉特征;利用Euler距离实现景区救助人员视觉特征匹配与定位。实验结果表明,将本文的方法应用于三维图像景区救助定位,大大提高了救助人员定位的准确性和效率,证明了上述方法相对于传统的定位方法更具鲁棒性,能够稳定快速地完成三维图像景区救助人员目标的定位。

Three-Dimensional Image Scenic Spot Rescue Personnel Positioning Simulation Based on VR Technology

In this article, a method to locate 3 D image rescuers in scenic spot based on VR technology(virtual reality technology) was proposed. The real scenic environment was scanned by laser measurement technology(LMS), so that 3 D scanning point cloud of scenic spot was obtained. Then, VR technology was used to reconstruct 3 D image of scenic spot. The geometric projection model was built to represent the perspective transformation model in real environment. The nonlinear algorithm was used to extract the visual features of describing the rescuers. Finally, Euler distance was used to achieve the visual features matching and positioning of rescuers. Simulation results show that the proposed method greatly improves the accuracy and efficiency of rescuer positioning. This method is more robust than the traditional method. Thus, the proposed method is able to locate the rescuer in 3 D image of scenic spot stably and fast.