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使用空间几何学的直线结构光平面的新校准方法
Huiping Gao1, Guili Xu1, Zhongchen Ma2
1College of Automation, Nanjing University of Aeronautics and Astronautics, Jiangjun Road, Nanjing 211106, China.
Sensors (Basel, Switzerland)
|July 14, 2023
概括
本研究引入了一种新的空间几何学方法,用于校准结构光平面,通过精确计算校准点来提高准确性. 与现有的平面目标方法相比,新方法大大减少了校准误差.
科学领域:
- 计算机视觉 计算机视觉
- 计量学 计量学 计量学
- 光学工程是指光学工程.
背景情况:
- 结构光平面校准对于3D重建至关重要,但经常受到噪音和不准确的点定位的阻碍.
- 使用平面目标的现有方法与视野和传感器噪声作斗争,导致校准点坐标偏差并影响整体校准准确度.
研究的目的:
- 开发一种新的,更准确的结构光平面校准方法.
- 克服噪音和不精确的点定位造成的现有方法的局限性.
- 通过使用易于获得的目标,提供强大的校准过程.
主要方法:
- 一种新的方法计算了基于空间几何学的校准点,通过找到投射线和目标线之间的共同垂直的中点.
- 目标被重新定位以获得多个非对线校准点.
- 光平面参数是通过将这些计算点相配而确定的.
主要成果:
- 拟议的方法实现了0.011mm的平均校准误差.
- 这比使用交叉比率不变的平面目标方法的0.031毫米平均误差有了显著的改进.
- 校准过程被简化,只需要一个棋盘目标.
结论:
- 这种基于空间几何学的新方法为结构光平面校准提供了卓越的准确性.
- 这种方法有效地减轻了由于噪音和点定位不准确而产生的错误.
- 该方法为结构光校准应用提供了更简单,更精确的替代方案.
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