The present invention provides a system and method of identifying a failure location in a datapath in a communication element, the datapath traversing from an ingress point through at least a first component to an egress point. When the 3D display apparatus receives image signals of first and second images for implementing 3D image in a stereoscopic scheme, the 3D display apparatus receives closed caption data only for a base view determined from the first and second images. The computer program code may further cause the apparatus to enable display of the item of virtual data in a virtual world of the electronic game or the application. The MC may be fabricated with, for example, long-period fiber-gratings, coupled waveguide devices, free-space phase-retardation elements, micro-electro-mechanical devices, or acousto-optic couplers. In this context, an adaptive optical element is provided, with the aid of which the imaging of the object on the pickup element andor the wave front of the reference beam andor the optical path length in the reference light path andor in the object light path may be influenced.