Holographic multi-projection using the random phase-free method.

We demonstrated holographic multi-projection using the random phase-free method and the iterative method. Holographic multi-projection is a method of projecting multiple different images focused on different screens at the same time. The random phase-free method succeeded in improving the image quality. By applying the iterative method to the random phase-free method, the image quality was improved further. The results of our numerical reconstruction and optical experiments confirm that the proposed method improves the image quality. The peak signal-to-noise ratios of the reconstructed images using the proposed method and the conventional method are 30.66 and 13.61 dB, respectively.

[1]  Michal Makowski,et al.  Minimized speckle noise in lens-less holographic projection by pixel separation. , 2013, Optics express.

[2]  Hao Wang,et al.  Image quality enhancement and computation acceleration of 3D holographic display using a symmetrical 3D GS algorithm. , 2014, Applied optics.

[3]  Tomoyoshi Shimobaba,et al.  Computational wave optics library for C++: CWO++ library , 2011, Comput. Phys. Commun..

[4]  Michal Makowski,et al.  Three-plane phase-only computer hologram generated with iterative Fresnel algorithm , 2005 .

[5]  Wei Lei,et al.  Speckle-suppressed phase-only holographic three-dimensional display based on double-constraint Gerchberg-Saxton algorithm. , 2015, Applied optics.

[6]  Edward Buckley,et al.  Holographic Laser Projection , 2011, Journal of Display Technology.

[7]  Qing Li,et al.  36.2: Speckle Suppression in a Scaled Holographic Display from Single Phase‐Only Computer Generated Hologram , 2015 .

[8]  Tomoyoshi Shimobaba,et al.  Real-time and low speckle holographic projection , 2015, 2015 IEEE 13th International Conference on Industrial Informatics (INDIN).

[9]  Frank Wyrowski,et al.  Theory of speckles in diffractive optics and its application to beam shaping , 1996 .

[10]  Tomoyoshi Ito,et al.  Random phase-free computer-generated hologram. , 2015, Optics express.

[11]  Yasuhiro Takaki,et al.  Speckle-free and grayscale hologram reconstruction using time-multiplexing technique. , 2011, Optics express.

[12]  T. Sonehara,et al.  Speckle-noise reduction on kinoform reconstruction using a phase-only spatial light modulator. , 1995, Applied optics.

[13]  Andrew J. Waddie,et al.  Simulation and experiment on generation of an arbitrary array of intense spots by a tiled hologram , 2010 .

[14]  Tomoyoshi Shimobaba,et al.  Holographic projection of images with step-less zoom and noise suppression by pixel separation , 2015 .

[15]  Matthew Pasienski,et al.  A high-accuracy algorithm for designing arbitrary holographic atom traps. , 2007, Optics express.

[16]  Tomoyoshi Shimobaba,et al.  Lensless zoomable holographic projection using scaled Fresnel diffraction. , 2013, Optics express.

[17]  Tomoyoshi Shimobaba,et al.  Numerical investigation of lensless zoomable holographic multiple projections to tilted planes , 2014, ArXiv.

[18]  Takanori Nomura,et al.  Speckle reduction in holographic projection by random pixel separation with time multiplexing. , 2014, Applied optics.

[19]  Tomoyoshi Shimobaba,et al.  Aliasing-reduced Fresnel diffraction with scale and shift operations , 2013 .