International Display Workshops General Incorporated Association

10:40 AM - 1:10 PM

[3Dp1/3DSAp1-3] Optimization Technique for Phase-Only Computer-Generated Holograms Based on Gradient Descent Method

*Shujian Liu1, Yuki Nagahama1, Yasuhiro Takaki1 (1. Tokyo University of Agriculture and Technology (Japan))

Holography, Fast calculation, Algorithm

https://doi.org/10.36463/idw.2019.1014

A new phase optimization technique for computer-generated holograms is proposed, which iteratively updates the phase distribution directly from the root mean square error of the reconstructed image using the chain rule. The number of iterations required for the proposed technique is much less than that required for the Gerchberg-Saxton algorithm.