A three-dimensional (3D) object reconstruction technique that uses only phase information of a phase-shifting digital hologram and a phase-only spatial-light modulator is proposed. It is well known that a digital hologram can store both amplitude and phase information of an optical electric field and can reconstruct the original 3D object in a computer. We demonstrate that it is possible to reconstruct optically 3D objects using only phase information of the optical field calculated from phase-shifting digital holograms. The use of phase-only information enables us to reduce the amount of data in the digital hologram and reconstruct optically the 3D objects using a liquid-crystal spatial light modulator without optical power loss. Numerical evaluation of the reconstructed 3D object is presented.
© 2002 Optical Society of America
[Optical Society of America ]
(090.1760) Holography : Computer holography
(100.3010) Image processing : Image reconstruction techniques
(100.6890) Image processing : Three-dimensional image processing
(200.4560) Optics in computing : Optical data processing
Osamu Matoba, Thomas J. Naughton, Yann Frauel, Nicolas Bertaux, and Bahram Javidi, "Real-Time Three-Dimensional Object Reconstruction by Use of a Phase-Encoded Digital Hologram," Appl. Opt. 41, 6187-6192 (2002)