Appendix F: Nonholographic 3D Imaging Methods
Although holography may be the only way of reproducing an entire electromagnetic field in an object space and recreating the image of a subject as if it were truly present, it’s not the only way of producing 3D images. Even a flat photograph can give a good subjective impression of depth, containing as it does a number of visual cues to the depth in the subject matter. These include relative image size of objects at different distances, image overlap, geometrical perspective and shadows, modeling, and texture. To this, we can add (in a stereoscopic pair of images) the result of binocular perception, that is, parallax.
When is a 3D image not a hologram? The most notorious impostors need to be cleared ...
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