The human eye-brain system evolved over tens of millions of years and at this
point no artificial system is as versatile and powerful for everyday tasks. In the
same way that a chess-playing program is not directly modelled after a human
player, many mathematical techniques are employed in artificial vision that do not
pretend to simulate biological vision. Artificial vision systems will therefore not
be set within the natural limits of human perception. For example, human vision
is inherently two dimensional4. To accommodate this limitation, radiologists must
resort to visualizing only 2D planar slices of 3D medical images. An artificial system
is free of that limitation and can “see” the image in its entirety.