【摘要】 针对传统视觉测量方法不能用于远距离和大场域目标测量的问题,提出了一种简单的视觉测量方法,可精确地测量远距离、大场域内目标落点的位置。利用简单的现场标校方法,使两相机的横向核平面水平且重合。在此基础上,根据视觉测量原理,建立了简化的落点坐标视觉测量模型。利用该模型,在250m×350m的测量区域内对遍布相机视场的44个目标点进行了视觉测量实验。实验数据显示:各点的综合相对测量误差小于0.3%,达到了较高的测量精度,完全适用于远距离、大视场的目标落点测量。更多还原

【Abstract】 Traditional vision measurement methods are not applicable for remote objects in large area.A simple vision measurement method is put forward to locate the remote objects in large area accurately.By using the simple calibration method,the transverse epipolar planes of the two cameras are horizontal and coplanar.On the basis of vision measurement principle,a simplified model of vision measurement for calculating the coordinates of impact point was built.And this model was used to locate the 44 object points in the whole field of view of the two cameras in 250 m×350 m measurement area.Experiment data shows that the overall relative measurement error of this model is less than 0.3%,which is a good measurement accuracy.更多还原