A new method for registering stereograms in which an orientated speckle pattern supplies the desired directivity for obtaining horizontal parallax is presented. This is accomplished by employing an optical system whose pupil consists of a double-fan aperture. In this way, the stereogram has a built-in reconstruction mechanism, and the stereo image can be observed with almost any extended white light source and without using any optical device. Furthermore, more than two points of view of the 3-D scene can be stored in a single plate by adequate positioning of the above-mentioned aperture.
© 1983 Optical Society of America
H. J. Rabal, E. E. Sicre, N. Bolognini, R. Arizaga, and M. Garavaglia, "Stereograms through a speckle carrier," Appl. Opt. 22, 881-885 (1983)