Navigation:  NxLib API > Commands > MeasureCalibration > Result > ReprojectionError

The reprojection error of the 3D chessboard dots projected into the right image. The error is computed as L2-norm of the individual point deviations in x and y.

Let (Rpi,x,Rpi,y) be the 2D positions of the ith chessboard dot in the right image and (Rp'i,x,Rp'i,y) the coordinates of the projection of the ith chessboard dot from the PatternPose into the right image. The (asymetric) reprojection error Erep,PnP is then computed as:

Erep,PnP = sqrt(∑[(Rpi,x' - Rp'i,x)2 + (Rpi,y' - Rp'i,y)2])