Full-color holographic stereogram printing based on effective digital content generation using IDP algorithm

In this paper, a full-color holographic stereogram (HS) printing system based on effective digital content generation using the inverse-directed propagation (IDP) algorithm is proposed. The digital content is generated effectively within the fast computation based on the IDP algorithm, and an optimized phase-modulation of hogel for red, green, and blue (RGB) channels of computer-generated hologram (CGH). Parallel computing is applied to provide high-resolution hologram data based on the independent hogel property. Finally, the generated hogels are recorded into holographic material sequentially as a volume hologram via a fully automated hogel printing setup using a single spatial light modulator (SLM) to obtain a full-color HS. Numerical simulation and optical reconstructions demonstrate the simple and effective computation operated in content generation using the proposed IDP-based full-color HS printing system without degrading the image quality of the holograms.