In order to realize the camera calibration in 3D reconstruction system,a calculation method based on an ideal camera model,in which the influences of lens radial distortion and tangential distortion were brought,was adopted,and a camera calibration algorithm based on OpenCV(open source computer vision library)was developed in Visual C++ environment. The calibration result was compared with that based on Matlab camera calibration tool kit. The experimental result shows that the pro⁃posed method has the advantages of high calibration precision and good robust,and can meet the needs of actual application and other computer vision systems.% 为了实现在三维重建系统中的对摄像机进行标定的目的，采用理想摄像机成像模型为基础，在模型中引入透镜径向畸变和切向畸变影响的计算方法。在VC++环境下开发了一种基于OpenCV算法库的摄像机标定算法，并同基于Mat⁃lab摄像机标定工具箱的标定结果进行了比较。实验结果表明，该方法具有标定精度高、鲁棒性好等优点，可以满足增强现实和其他计算机视觉系统的需要。
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