We propose a method to implement a speckle-reduced coherent three-dimensional (3D) display system by a combination of integral imaging and photorefractive volume holographic storage. The 3D real object is imaged through the microlens array and stored in the photorefractive crystal. During the reconstruction process a phase conjugate reading beam is used to minimize aberration, and a rotating diffuser located on the imaging plane of the lens array is employed to reduce the speckle noise. The speckle-reduced 3D image with a wide viewing angle can be reconstructed by use of the proposed system. Experimental results are presented and optical parameters of the proposed system are discussed in detail.
© 2002 Optical Society of America
(090.7330) Holography : Volume gratings
(100.3010) Image processing : Image reconstruction techniques
(100.6890) Image processing : Three-dimensional image processing
(160.5320) Materials : Photorefractive materials
(210.2860) Optical data storage : Holographic and volume memories
Seung-Ho Shin and Bahram Javidi, "Speckle-reduced Three-dimensional Volume Holographic Display by Use of Integral Imaging," Appl. Opt. 41, 2644-2649 (2002)