CAJ | 학술논문

提出了一种基于棋盘格模板的单目摄像机标定方法，该方法首先使用高精度CCD摄像机对摆放在二维手动导轨平台上，沿Z坐标轴多次改变固定值的棋盘格标定模板进行拍摄，并提取棋盘格角点的亚像素坐标．再结合DLT标定方法求得摄像机所有参数，最后对任意位置的棋盘格角点进行三维重建来测量标定精度，重建得到的X坐标和Y坐标平均误差均为±0．02 mm．实验结果表明该方法能够快速、有效地获取高精度的摄像机参数，可以满足三维重建及其他视觉检测场合使用要求．
제출료일충기우기반격모판적단목섭상궤표정방법，해방법수선사용고정도CCD섭상궤대파방재이유수동도궤평태상，연Z좌표축다차개변고정치적기반격표정모판진행박섭，병제취기반격각점적아상소좌표．재결합DLT표정방법구득섭상궤소유삼수，최후대임의위치적기반격각점진행삼유중건래측량표정정도，중건득도적X좌표화Y좌표평균오차균위±0．02 mm．실험결과표명해방법능구쾌속、유효지획취고정도적섭상궤삼수，가이만족삼유중건급기타시각검측장합사용요구．
In this paper, a monocular camera calibration method based on checkerboard template is presented.This method is using a high-precision CCD camera to take pictures of checkerboard calibra-tion template which is placed on a two-dimensional platform with hand-operated rails.Its fixed values vary along the Z axis, and so the subpixel coordinates of checkerboard corner points yield.Then all the camera parameters can be obtained by adopting DLT calibration method, and finally the arbitrary checkerboard corner points will be reconstructed to test the accuracy of calibration by estimating in 3 D spatial coordinate.The average error of horizontal and vertical coordinates are both ±0.02 mm.Ex-perimental data show that by using this method high-precision camera parameters can be obtained quick-ly and efficiently, which meets the requirements of three-dimensional reconstruction and other visual in-spection occasions.