Of course, the 3D is yet to create elite names, compared to the 2D devices. Looking into the face recognition system comparison, most people still prefer to use the 2D, unwilling to attempt at the new 3D technology. Besides the fact that it takes time for people to accept changes, the consistent improvement in the 2D system is also a contributing factor. Perhaps the bulk of populace sees the better potential of enhancing the existing technology, rather than establishing something not yet universally accepted.