Phase mask extended spatial light modulator for high-quality reconstruction of holographic display viewing angles

Jun Wu; Jiachen Kang; Shaowen Hao

doi:10.1117/12.3031029

19 July 2024 Phase mask extended spatial light modulator for high-quality reconstruction of holographic display viewing angles

Jun Wu, Jiachen Kang, Shaowen Hao

Author Affiliations +

Proceedings Volume 13181, Third International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2024); 131813C (2024) https://doi.org/10.1117/12.3031029
Event: Third International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2024), 2024, Beijing, China

Abstract

Aiming to address the issue of poor holographic image reconstruction quality and significant impact on observer experience resulting from the pre-appended phase mask extended holographic display viewing angle, a novel high-quality reconstruction method is proposed. The method consists of two steps: 1) Utilizing the GS iterative phase optimization algorithm to enhance pure phase holograms, which significantly improves the reconstruction quality of individual phase holograms when a random phase mask is pre-appended to expand the viewing angle. 2) Employing a time-averaging technique for holographic image reconstruction based on the visual "persistence effect" of the human eye to effectively suppress speckle noise in the holographic reconstruction results. Through the aforementioned two steps, numerical simulation experiments were conducted, and the results indicate that the combination of the GS iterative optimization algorithm and time-averaging method produces holographic reconstructions with clear details, low speckle noise, and high quality for the phase mask extended holographic display viewing angle method.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Jun Wu, Jiachen Kang, and Shaowen Hao "Phase mask extended spatial light modulator for high-quality reconstruction of holographic display viewing angles", Proc. SPIE 13181, Third International Conference on Electronic Information Engineering, Big Data, and Computer Technology (EIBDCT 2024), 131813C (19 July 2024); https://doi.org/10.1117/12.3031029

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KEYWORDS

Holograms

3D image reconstruction

Holographic displays

Reconstruction algorithms

Speckle

Spatial light modulators

Holography

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