Multi-camera systems: Calibration and applications

Some simple and effective techniques for accurately calibrating a multi-camera acquisition system are presented. The methods are proven to be capable of accurate results even when using very simple calibration target-sets and low-cost imaging devices, such as standard TV-resolution cameras connected to commercial frame-grabbers. The calibration strategy is based on a multi-view, multi-camera approach where a number of views of a simple calibration target-set placed in different positions is analyzed. The method is based on a self-calibration approach, which can refine the a priori knowledge of the world coordinates of the targets while estimating the parameters of the camera model.