Diffraction-engineered holography: Beyond the depth representation limit of holographic displays

Daeho Yang, Wontaek Seo, Hyeonseung Yu, Sun Il Kim, Bongsu Shin, Chang-Kun Lee, Seokil Moon, Jungkwuen An, Jong-Young Hong, Geeyoung Sung and Hong-Seok Lee ()
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Daeho Yang: Samsung Electronics
Wontaek Seo: Samsung Electronics
Hyeonseung Yu: Samsung Electronics
Sun Il Kim: Samsung Electronics
Bongsu Shin: Samsung Electronics
Chang-Kun Lee: Samsung Electronics
Seokil Moon: Samsung Electronics
Jungkwuen An: Samsung Electronics
Jong-Young Hong: Samsung Electronics
Geeyoung Sung: Samsung Electronics
Hong-Seok Lee: Samsung Electronics

Nature Communications, 2022, vol. 13, issue 1, 1-11

Abstract: Abstract 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.

Date: 2022
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DOI: 10.1038/s41467-022-33728-5

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