Samsung Advanced Institute of Technology

Holography is one of the most prominent approaches to realize true-to-life reconstructions of

objects. However, owing to the limited resolution of spatial light modulators compared to static

holograms, reconstructed objects exhibit various coherent properties, such as content-dependent

defocus blur and interference-induced noise. The coherent properties severely distort depth perception,

the core of holographic displays to realize 3D scenes beyond 2D displays. Here, we

propose a hologram that imitates defocus blur of incoherent light by engineering diffracted pattern

of coherent light with adopting multi-plane holography, thereby offering real world-like

defocus blur and photorealistic reconstruction. The proposed hologram is synthesized by optimizing

a wave field to reconstruct numerous varifocal images after propagating the corresponding

focal distances where the varifocal images are rendered using a physically-based renderer.

Moreover, to reduce the computational costs associated with rendering and optimizing, we also

demonstrate a network-based synthetic method that requires only an RGB-D image.