US Patent No. 9,541,899

FAST GENERATION OF PURE PHASE DIGITAL HOLOGRAMS


Patent No. 9,541,899
Issue Date January 10, 2017
Title Fast Generation Of Pure Phase Digital Holograms
Inventorship Peter Wai Ming Tsang, Kowloon (HK)
Assignee CITY UNIVERSITY OF HONG KONG, Kowloon (HK)

Claim of US Patent No. 9,541,899

1. A system, comprising:
at least one memory that stores computer-executable components; and
at least one processor that executes or facilitates execution of the computer executable components, comprising:
a holographic generator component that receives or generates a visual image that represents an object scene; and
a hologram processor component that converts the visual image to a sparse image to facilitate generating a complex hologram
of the object scene based at least in part on the sparse image, and converts the complex hologram to a phase hologram to facilitate
generation of a holographic image that represents the object scene based at least in part on the phase hologram, wherein the
complex hologram comprises a magnitude portion and a phase portion, and the phase hologram comprises the phase portion, wherein
the sparse image has a visual characteristic that is less dense than the visual image, and wherein, to facilitate the visual
image being converted to the sparse image, the hologram processor component downsamples an intensity distribution of object
points of the visual image by a defined downsampling factor, based at least in part on a lattice component, to generate a
sparse intensity distribution of the object points of the visual image.