n 许多计算机视觉应用被认为是已经校准相机。这意味着内部摄像机参数模型可用。这种模式可以提供由生产厂家或计算使用已知的目标 （通常棋盘平面） 这种情况，称为位姿估计方法，只需要恢复相对的位置和方向的照相机的六个参数。最受欢迎的标定方法之一就是应用的知名的蔡摄像机标定方法是应用的适合一个广泛领域，因为它可以处理共面和非共面点。它还提供了可能性，要单独校准内部和外部参数。此选项是特别有用的因为它给固定摄像机的内部参数已知时，和进行只位姿估计方法的可能性。
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