HOLOGRAM PROFILE OPTIMIZATION METHOD, HOLOGRAM PROFILE GENERATION DEVICE, AND HOLOGRAPHIC DISPLAY DEVICE TO WHICH HOLOGRAM PROFILE OPTIMIZATION METHOD IS APPLIED
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United States of America Patent
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Issued Date -
Dec 14, 2023
app pub date -
Mar 2, 2023
filing date -
Jun 14, 2022
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
A hologram profile optimization method includes: setting a first hologram profile as a variable; and performing an optimization cycle a predetermined number of times, wherein the optimization cycle includes encoding the first hologram profile into a binary hologram profile by using an ApproxSign function; calculating a field value of a holographic image on a display surface for the binary hologram profile, considering high-order diffraction term noise of the holographic image by using a tiling function; calculating an intensity of the holographic image on the display surface; calculating a loss function value based on a difference between the intensity of the holographic image and an intensity of a target image; and updating the first hologram profile to a second hologram profile based on the loss function value.
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