Fast, large-scale hologram calculation in wavelet domain

TL;DR

This paper introduces WASABI, a wavelet transform-based algorithm that significantly accelerates large-scale hologram calculations, enabling high-resolution holograms to be computed in about 354 seconds on standard hardware.

Contribution

The paper presents a novel wavelet transform-based method for large-scale hologram calculation that is approximately 30 times faster than traditional approaches.

Findings

Hologram with 65,536 x 65,536 resolution was successfully printed.

Calculation time was reduced to approximately 354 seconds on a commercial CPU.

The method outperforms conventional hologram calculation techniques in speed.

Abstract

We propose a large-scale hologram calculation using WAvelet ShrinkAge-Based superpositIon (WASABI), a wavelet transform-based algorithm. An image-type hologram calculated using the WASABI method is printed on a glass substrate with the resolution of $65,536 \times 65,536$ pixels and a pixel pitch of $1 \mu$m. The hologram calculation time amounts to approximately 354 s on a commercial CPU, which is approximately 30 times faster than conventional methods.