Accuracy analysis of an augmented reality system

Work described in this contribution focuses on error analysis in augmented reality (AR) systems. The tracking, the process of locating an object (e.g. fiducial marker) in an environment, is critical to the accuracy of AR applications as more realistic results can be obtained in the presence of accurate AR registration. This deals with 2D error estimations of the edge detection process, the starting step of the whole tracking procedure enabling to determine the outline of the imaged marker. Using fitting techniques to describe the geometric features composing the outline, errors bounds are determined and, as a result of this step, edge detection errors are estimated. These 2D errors are then propagated up to the final tracking step.