Work

Real-time holographic 3D display using Split–Lohmann Fresnel computer-generated hologram (SL-FCGH)

Year: 2024

Type: article

Abstract: Real-time generation of computer-generated hologram (CGH) from three-dimensional (3D) objects has been a long-standing problem in holographic display. In this paper we report a fast CGH generation algorithm, which can rapidly synthesize a 3D Fresnel hologram in only one-step backward propagation calculation in a Split-Lohmann lens-based diffraction model. In such a calculation scheme, we utilize an image padding and cropping strategy to remove image artifacts and improve the display quality in a large depth range. The generated hologram, which is called Split-Lohmann Fresnel CGH (SL-FCGH), can reproduce 3D images through free-space Fresnel diffraction optics. The computation time of the proposed method is independent of the quantized layer numbers and, therefore, can achieve real-time computation speed with a very dense depth sampling. Both simulation and experimental results of full-color holographic display prove the validation of the proposed method.

Source: Optics Express

DOI: 10.1364/oe.534359

Authors: Xian Ding, Chenliang Chang, Bo Dai, Qi Wang, Dawei Zhang, Songlin Zhuang

Language: English

Topic: Advanced Optical Imaging Technologies

Subfield: Media Technology

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funders: Youth Innovation Promotion Association of the Chinese Academy of Sciences, National Key Research and Development Program of China

Awards: G3194589777, G8404097368