基于不同摄像机配置的空间点检测模型及精度研究

针对空间点检测问题给出了一种简便而精确的空间点检测方法并建立了实验环境下的数学模型,提出了视差为零时,所测得的空间点深度最接近真实值的假设,并得到如下结论：给定空间点,深度不变,基线越短,光轴的夹角越小；深度改变时,基线一定,则深度越长,夹角越小。推导出在不同基线、不同深度下摄像机光轴之间理想夹角的数学模型并通过实验进行了验证。该方法对实际双目检测系统的摄像机配置有一定的指导作用。

Study on model and precision in spatial point detection based on different camera assignment

In this paper, a simple and exact method for detecting 3D aerial point according to the problem is provided and builds a math model of experiment environment is built. It advances that when detecting 3D aerial point is nearly real value while parallax is near zero. It comes to the conclusion that the shorter the baseline has the smaller the ray axis is and the longer the depth is the smaller the ray axis has according to the fixed 3D aerial point. The math model of real angle between the baseline and the depth of 3D aerial point is provided, and the affects on the error of 3D aerial point measurement are given. At last, the ideal assignment scheme of the experimental environment and validated through real data is given. The research is important for practice.