Our open-source software FAUCCAL (Fully Automatic Camera Calibration) is freely available on the Internet since 2009. Input is simply different images of standard chess-board patterns; the software then proceeds automatically to produce calibration results and statistical data for camera parameters selected by the user. With this software, feature points are first extracted with a Harris operator, among which valid pattern nodes are separated and subsequently ordered in columns and rows in correspondence with pattern nodes. Initial values for all unknown parameters are estimated automatically. Based on the established point correspondences and initial values, a final bundle adjustment allows fully recovering – without use of any external information – the camera geometry parameters selected by the user. Besides camera constant, principal point location and radial-symmetric lens distortion polynomial, these may include decentering lens distortion, image aspect ratio and skewness. Graphical output is also provided. The FAUCCAL site provides users with the source code in Matlab, detailed documentation of the software (including tips), links to bibliographical references and an image test dataset with results.FAUCCAL can be downloaded at:
2012 Automatic calibration of stereo-cameras using ordinary chess-board patterns. A. Prokos, I. Kalisperakis, E. Petsa, G. Karras. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, vol. XXXVIII, Part 5, pp. 45-49.
2009 FAUCCAL: An Open Source Toolbox for Fully Automatic Camera Calibration. V. Douskos, L. Grammatikopoulos, I. Kalisperakis, G. Karras, E. Petsa, XXII CIPA Symposium on Digital Documentation, Interpretation & Presentation of Cultural Heritage, October 11-15, 2009, Kyoto
2008 Fully automatic camera calibration using regular planar patterns. V. Douskos, I. Kalisperakis, G. Karras, E. Petsa. International Archives of Photogrammetry, Remote Sensisng and the Spatial Information Sciences, vol. 37(5), pp. 21-26
2007 Automatic calibration of digital cameras using planar chess-board patterns. V. Douskos, I. Kalisperakis, G. Karras. Optical 3-D Measurement Techniques VIII, Wichman, vol. 1, pp.132-140.