Memory usage reduction and intensity modulation for 3D holographic display using non-uniformly sampled computer-generated holograms

Zhao Zhang; Juan Liu; Jia Jia; Xin Li; Yijie Pan; Jian Han; Bin Hu; Yongtian Wang

doi:10.1117/12.2037456

19 December 2013 Memory usage reduction and intensity modulation for 3D holographic display using non-uniformly sampled computer-generated holograms

Zhao Zhang, Juan Liu, Jia Jia, Xin Li, Yijie Pan, Jian Han, Bin Hu, Yongtian Wang

Author Affiliations +

Proceedings Volume 9045, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology; 90451I (2013) https://doi.org/10.1117/12.2037456
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China

Abstract

The real-time holographic display encounters heavy computational load of computer-generated holograms and precisely intensity modulation of 3D images reconstructed by phase-only holograms. In this study, we demonstrate a method for reducing memory usage and modulating the intensity in 3D holographic display. The proposed method can eliminate the redundant information of holograms by employing the non-uniform sampling technique. By combining with the novel look-up table method, 70% reduction in the storage amount can be reached. The gray-scale modulation of 3D images reconstructed by phase-only holograms can be extended either. We perform both numerical simulations and optical experiments to verify the practicability of this method, and the results match well with each other. It is believed that the proposed method can be used in 3D dynamic holographic display and design of the diffractive phase elements.

Citation Download Citation

Zhao Zhang, Juan Liu, Jia Jia, Xin Li, Yijie Pan, Jian Han, Bin Hu, and Yongtian Wang "Memory usage reduction and intensity modulation for 3D holographic display using non-uniformly sampled computer-generated holograms", Proc. SPIE 9045, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Processing Technology, 90451I (19 December 2013); https://doi.org/10.1117/12.2037456

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KEYWORDS

Holograms

Computer generated holography

Modulation

3D displays

3D image processing

Holography

Phase shift keying

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