The intrinsic parameters are separated into two parts of focal length and coordinates for the principle point, which are then solved by using the least square method. 然后把摄像机内参数矩阵分解为有效焦距与主点位置两部分,并利用最小二乘法分别对其进行求解。
However, with the increase of lattice, internal intrinsic coordinates increase, thus the amount of calculation will be greatly increased. 但随着元胞格点的增加,内部自由度增多,计算量也大大增加了。