公开(公告)号：US20250085664A1

公开(公告)日：2025-03-13

申请号：US18725915

申请日：2022-06-28

Applicant: SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor： Byoungho LEE ,  Byounghyo LEE ,  Dongyeon KIM ,  Seungjae LEE ,  Chun CHEN

IPC: G03H1/04 ,  G03H1/02 ,  G03H1/26

Abstract: Provided are a method and apparatus for optimizing a holographic display. The holographic display back-propagates target field data including generating a predicted hologram by a plurality of planes in a depth direction to a complex plane of a space light modulator (SLM), converts the predicted hologram into a binary hologram, generates predicted field data by forward-propagating the binary hologram to a reproduction plane through an optical system simulation model, calculates a loss function between the predicted field data and the target field data, generates a new predicted hologram for the predicted field data by using a stochastic gradient descent (SGD) method to reduce a value of the loss function, and repeats the generation of the new predicted hologram until the value of the loss function is less than a predefined threshold.