Fast computation of computer-generated holography using novel look-up table

Seung-Cheol Kim; Jung-Hoon Yoon; Sang-Hyun Lee; Eun Soo Kim

doi:10.1117/12.733352

20 September 2007 Fast computation of computer-generated holography using novel look-up table

Seung-Cheol Kim, Jung-Hoon Yoon, Sang-Hyun Lee, Eun Soo Kim

Proceedings Volume 6695, Optics and Photonics for Information Processing; 66950L (2007) https://doi.org/10.1117/12.733352
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

Several approaches for increasing the speed and simplicity in computation of the digital holograms of the 3-D object have been presented with applications to real-time display of holographic images. So far, a look-up table (LUT) approach in which the pre-calculated elemental interference patterns for all possible points of the object are provided, has gained a lot of speed increase. But the greatest drawback of this method is the enormous size of the LUT. In this paper, a novel LUT method to dramatically reduce the number of pre-calculated elemental interference patterns required for computation of digital holograms compared with that of the conventional approach is proposed. Some experimental results finally reveal that the computation speed and the required memory size of the proposed LUT approach are found to be 48.8 times faster than that of the ray-tracing method and 217 times smaller than that of the conventional LUT method, respectively.

Citation Download Citation

Seung-Cheol Kim, Jung-Hoon Yoon, Sang-Hyun Lee, and Eun Soo Kim "Fast computation of computer-generated holography using novel look-up table", Proc. SPIE 6695, Optics and Photonics for Information Processing, 66950L (20 September 2007); https://doi.org/10.1117/12.733352

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