Fig. 1. Holographic stereogram of ultragram. (a) Rearranged perspective image of full parallax holographic stereogram with infinite camera; (b) principle of double-cone sampling method

Fig. 2. 3D map of Zebra Imaging. (a) Holographic map of battlefield environment; (b) holographic map of New York city

Fig. 3. Direct-writing digital holography and centred camera transform of Geola. (a) Principle of direct-writing digital holography; (b) principle of centred camera image transform

Fig. 4. Holographic stereogram printing system designed by Geola. (a) Pulse laser printing system of Geola; (b) full color hologphic stereogram with high quality and large format made by this system

Fig. 5. Mixed molded holograms with public and optical security features. (a) Photographs of hologram illuminated from direction where deep 3D image is clearly visible; (b) photograph of hologram illuminated from direction where embossed inscriptions are clearly visible; (c)(d) microphotographs of embossed holograms with different magnifications

Fig. 6. Composite diffraction lens based on holographic optical elements. (a) Composite diffraction lens obtained by holographic printing method; (b) FOV of composite diffraction lens

Fig. 7. FOV expansion of hologram by convex parabolic lens. (a) principle of converting plane wave into spherical wave by convex parabolic mirror; (b) expansion of FOV by convex parabolic mirror; (c) horizontal lateral profile of virtually converging point after expanding FOV

Fig. 8. Basic principle of EPISM method and reconstructed image. (a) Acquisition of single hogel image segments with effective perspecitve; (b) msaic of image segments with effective perspecitve

Fig. 9. Analysis of EPISM method by optical transfer function. (a) Exit pupil function model of holographic stereogram based on EPISM method; (b) optical reconstruction images under different conditions

Fig. 10. Distributions of object light under different conditions. (a) Distribution of object light when diffuser is used; (b) convergence of light when diffuser and field lens are used

Fig. 11. Numerical reconstruction principle of holographic stereogram

Fig. 12. Effects of different geometric distortion factors on reconstructed image of holographic stereogram. (a) κ=0; (b) κ=0.000001; (c) κ=0.00001; (d) κ=0.0001; (e) κ=0.001

Fig. 13. Comparison between numerical reconstruction images and optical experimental results of EPISM holographic stereogram