Regular effective hologram regions for computer generated holography.

An effective hologram region (EHR) based approach is presented to speed up the computation of computer generated holograms (CGHs). The object space is predivided into subspaces, and an EHR for each subspace is predefined according to the maximum spatial frequency of interference fringes, light diffraction efficiency, and CGH binarization effect. To compute the hologram of an object, the object points are first categorized according to which subspace they are located in, and then their holograms are calculated using the corresponding EHRs. As each EHR usually takes up only a portion of the hologram plate, the CGH computational load is thus reduced. This new approach is highly suitable for large hologram display systems. In addition, when compared to the reconstructed image using the conventional approach, our experimental results show that more noise can be blocked off and the reconstructed image appears sharper without noticeable brightness reduction.

[1]  Tow Chong Chong,et al.  Dynamic display of 3D objects in real and virtual spaces with computer-generated holography , 2008, VRCAI '08.

[2]  Hoonjong Kang,et al.  Accurate phase-added stereogram to improve the coherent stereogram. , 2008, Applied optics.

[3]  Ridwan Bin Adrian Tanjung,et al.  Fast CGH computation using S-LUT on GPU. , 2009, Optics express.

[4]  Takeshi Yamaguchi,et al.  Real-Time Generation of Full color Image Hologram with Compact Distance Look-up Table , 2009 .

[5]  Mark E. Lucente,et al.  Interactive computation of holograms using a look-up table , 1993, J. Electronic Imaging.

[6]  R Männer,et al.  Gradual and random binarization of gray-scale holograms. , 1995, Applied optics.

[7]  John Stephen Underkoffler.  Toward accurate computation of optically reconstructed holograms , 1991 .

[8]  Tomoyoshi Ito,et al.  Special-purpose computer HORN-5 for a real-time electroholography. , 2005, Optics express.

[9]  Mark Lucente,et al.  Rendering interactive holographic images , 1995, SIGGRAPH.

[10]  Takeshi Yamaguchi,et al.  Compensated phase-added stereogram for real-time holographic display , 2007 .

[11]  Takeshi Yamaguchi,et al.  Real time calculation for holographic video display , 2006, SPIE OPTO.

[12]  Eun-Soo Kim,et al.  Effective generation of digital holograms of three-dimensional objects using a novel look-up table method. , 2008, Applied optics.

[13]  R. Häussler,et al.  Large holographic displays for real-time applications , 2008, SPIE OPTO.

[14]  Mark Lucente.  Diffraction-specific fringe computation for electro-holography , 1994 .