Camera Calibration

The open-source software FAUCCAL (Fully Automatic Camera Calibration) has been freely available online since 2009. It takes multiple images of a checkerboard pattern as input and automatically computes the camera calibration results along with statistics for the camera parameters.

Feature points are detected using the Harris operator κand are organized according to the nodes of the checkerboard. Initial values for the unknown parameters are estimated automatically, and the bundle adjustment method allows the full recovery of the camera’s internal parameters without any external intervention.

In addition to basic parameters such as focal length and principal point, the software also computes radial and tangential lens distortions, as well as affine sensor distortions. The FAUCCAL website provides the Matlab, source code, documentation, references, and examples.