CalibrationObservation 
List of observed features and their pixel locations on a single calibration target from one image.

CalibrationPlanarGridZhang99 
Full implementation of the Zhang99 camera calibration algorithm using planar calibration targets.

RadialDistortionEstimateLinear 
Estimates radial lens distortion by solving a linear equation with observed features on a calibration grid.

Zhang99CalibrationMatrixFromHomographies 
Estimates camera calibration matrix from a set of homographies using linear algebra.

Zhang99ComputeTargetHomography 
Given a description of the calibration grid and a set of observations compute the associated Homography.

Zhang99DecomposeHomography 
Decomposes a homography into rigid body motion (rotation and translation) utilizing specific
assumptions made inside the Zhang99 paper [1].
