1. An imaging system comprising: an image-acquisition system configured to determine a location of an eye of a viewer from an image obtained by the image-acquisition system, the image-acquisition system further configured to track a positional change of the eye of the viewer; a two-dimensional display system configured to display a sequential image for viewing with the eye of the viewer, the positional change of the eye of the viewer to be relative to the display system; a memory configured to store a model of a scene; and an image-generation logic configured to generate the sequential image, the sequential image including motion parallax depiction of the scene determined from the model and the positional change of the eye of the viewer relative to the display; wherein the image-acquisition system is further configured to determine a number of faces from the image obtained by the image-acquisition system and the image-generation logic is further configured to at least adjust the generation of the sequential image depending on the number of faces.