自动全站仪的光斑图像中心定位精度分析

Accuracy Analysis of Spot Image Center Location in Automatic Total Station

为研制国产的自动目标识别全站仪,自动目标识别与照准全站仪成为研究的热点。本文将CMOS图像传感器内置于RTS010A电动全站仪中,构造自动目标识别全站仪系统。对光斑图像进行处理,提取光斑图像中心点坐标;测试并分析了光斑图像中心定位精度,全站仪望远镜固定不动时,光斑中心定位精度小于0.2个像素坐标,全站仪望远镜沿水平角或竖直角单方向旋转时,光斑中心坐标变化在固定方向小于0.7个像素坐标。认为光斑图像中心定位精度可满足自动目标识别全站仪模型标定的要求。

Automatic target recognition and collimation of the total station to become a hot spot for the development of domestic automatic target recognition total station,In this paper,CMOS image sensor built in RTS010A electric total station,the construction of automatic target recognition total station system.The spot image is processed,extraction of the spot image center coordinates;The accuracy of the center position of the spot image is tested and analyzed,Total station telescope fixed,the spot center positioning accuracy of less than 0.2 pixel coordinates,Total station telescope along the horizontal or vertical angle of the single direction of rotation,the spot center coordinate changes in fixed direction is less than 0.7 pixel coordinates.It is considered that the location precision of the spot image center can meet the requirement of the automatic target recognition total station model calibration.