PROCEDIMIENTO COMPLETO PARA EL CALIBRADO DE CÁMARAS UTILIZANDO UNA PLANTILLA PLANA

Camera calibration is necessary to obtain 3D information from 2D images of a scene. Different techniques exist, which are based on photogrammetry or self-calibration. As a result of the calibration, the intrinsic and extrinsic camera parameters are computed. Much work has been done in camera calibration and also in data pre- and post-processing techniques. From a practical viewpoint, bibliography shows that the calibration method using a two-dimensional template is easier to resolve and finest results are computed. However, in any case, techniques of data pre and post processing are taken into account to improve this calibration method. In this paper a review of different techniques of data pre and post processing is done in order to improve the calibration process using a two-dimensional template of Zhang (Zhang, 1998, 2000). These techniques optimize the computing process, reduce the noise in the points coordinates and they accomplished a non linear searching suitable to the camera parameters. In this article a complete camera calibration process with a wodimensional template is defined, in order to compute optimal parameters