18725915. METHOD FOR OPTIMIZING HOLOGRAPHIC DISPLAY AND DEVICE THEREFOR (SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION)

METHOD FOR OPTIMIZING HOLOGRAPHIC DISPLAY AND DEVICE THEREFOR

Organization Name

SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

Inventor(s)

Byoungho Lee of Seoul (KR)

Byounghyo Lee of Seoul (KR)

Dongyeon Kim of Seoul (KR)

Seungjae Lee of Seoul (KR)

Chun Chen of Seoul (KR)

METHOD FOR OPTIMIZING HOLOGRAPHIC DISPLAY AND DEVICE THEREFOR

This abstract first appeared for US patent application 18725915 titled 'METHOD FOR OPTIMIZING HOLOGRAPHIC DISPLAY AND DEVICE THEREFOR

Original Abstract Submitted

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.