Fig. 1. (a) Architecture diagram of 3D holographic video communication system; (b) 3D acquisition terminal constructed using structured light camera and light field camera; (c) 3D display terminal constructed using computer-generated holography^[5]

Fig. 2. (a) Architecture diagram of the model-driven hologram generation network: Holo-Encoder^[32]; (b) Architecture diagram of the model-driven hologram generation network: 4 K-DMDNet^[33]

Fig. 3. (a) Schematic diagram of supervised monocular depth estimation; (b) Schematic diagram of unsupervised monocular depth estimation

Fig. 4. (a) Two-stage monocular depth estimation; (b) Feature distillation-based monocular depth estimation; (c) Transfer learning-based monocular depth estimation

Fig. 5. (a) Schematic of data-driven hologram generation; (b) Schematic of model-driven hologram generation

Fig. 6. (a) Generation of broadband holograms; (b) Optimization of initial conditions and solution paths for ill-posed inverse problems

Fig. 7. Gradient variation in the depth direction of holographic recon-structions under initial conditions without and with random phase