Fast hologram calculation using wavelet transform

Tomoyoshi Shimobaba; Shota Yamada; Takashi Kakue; Tomoyoshi Ito

doi:10.1117/12.2505810

15 November 2018 Fast hologram calculation using wavelet transform

Tomoyoshi Shimobaba, Shota Yamada, Takashi Kakue, Tomoyoshi Ito

Proceedings Volume 10964, Tenth International Conference on Information Optics and Photonics; 109642I (2018) https://doi.org/10.1117/12.2505810
Event: Tenth International Conference on Information Optics and Photonics (CIOP 2018), 2018, Beijing, China

Abstract

To further accelerate the calculations associated with point-cloud-based holograms, wavelet shrinkage-based superpositIon (WASABI) has been proposed. Wavelet shrinkage eliminates the small wavelet coeﬃcient values of the light distribution emitted from a point cloud, resulting in an approximated light distribution calculated from a few representative wavelet coeﬃcients. Although WASABI can accelerate the hologram calculations, the approximated light distribution tends to lose the high-frequency components. To address this issue, random sampling was applied to the light distribution.

Citation Download Citation

Tomoyoshi Shimobaba, Shota Yamada, Takashi Kakue, and Tomoyoshi Ito "Fast hologram calculation using wavelet transform", Proc. SPIE 10964, Tenth International Conference on Information Optics and Photonics, 109642I (15 November 2018); https://doi.org/10.1117/12.2505810

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