In the face recognition system comparison, the 2D images are more common than the 3D, although both have their respective advantages and disadvantages. For some reasons, the 2D operates better under relatively modest illuminating light and is often affected by pose changes, namely the changes in facial gestures or expressions. Comparatively, the 3D face recognition system database, although still too few to be enlightened, is becoming cheaper and working faster than before.
Weighing both the systems, comparing 2D and 3D sees one seemingly distinctive difference – the 2D model considers only the facial’s two dimensional decrees while 3D basically resembles an authentic object. Logically speaking, the 3D model database should elevate the performance’s level in spite until now; no scientific proofs have been disclosed. From the experts’ point of view, the 3D database system is too pricey to be utilized by the norm society, besides another fact that the capturing of the data is not fully independent of the light disparity.
In other technical words, comparing 2D and 3D reveals the difference in variation – the 2D involves intensity variation while 3D revolves around shape variation. Because the face recognition system is used to distinguish faces according to the color, intensity or other facial features, the 2D seems to be functioning more appropriately to provide the required information. The conflict can be seen in the 3D recognition system that discriminates only the shape of the features. Despite being deemed to be more reliable and accurate, much improvement is still needed to apply the 3D system in real.
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.