基于LabVIEW的相机标定技术研究

摘要

Employing LabVIEW platform and visual development module to calibrate cameras was implemen-ted, including having dot matrix chosen to calibrate the board and Canny operator adopted to extract the circle edge and then having the method of circle fitting extracted based on subpixel edge to get feature points' coordi-nate in the image coordinate system.The proposed method can reduce the difficulty of camera calibration and shorten the software development cycle.The most important is that it has a high calibration accuracy as the ac-tual industrial detection required.%使用LabVIEW平台和视觉开发模块完成对相机的标定,选用圆点阵标定板,利用Canny算子提取圆形轮廓,然后基于亚像素边缘提取的圆拟合方法提取特征点在图像坐标系下点中心坐标.该方法降低了摄像机标定的难度,极大地缩短了软件开发周期,具有较高的标定精度,能够满足实际工业检测的精度要求.