Stereoscopic image display is described. In an embodiment, a location of
the eye pupils of a viewer is determined and tracked. An image is
displayed within a first focus for viewing with the left eye of the
viewer, and the image is displayed within a second focus for viewing with
the right eye of the viewer. A positional change of the eye pupils is
tracked and a sequential image that corresponds to the positional change
of the eye pupils is generated for stereoscopic viewing. In another
embodiment, an image is displayed for stereoscopic viewing and a head
position of a viewer relative to a center of the displayed image is
determined. A positional change of the viewer's head is tracked, and a
sequential image that corresponds to the positional change of the
viewer's head is generated for stereoscopic viewing.