Holographic Display Aberration Compensation via Segmented Kernels

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Solution Overview

Problem

Holographic display systems face degradation in three-dimensional image quality due to optical aberrations of the holographic display device, necessitating a method to compensate for these aberrations.

Innovation Solution

The method involves generating kernels by modeling aberrations corresponding to hologram plane segments, creating masks for spatial filtering, propagating hologram segments using the kernels, and updating the hologram based on comparisons between propagated image segments and reference segments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a hologram is generated using a conventional holographic display device, then the three-dimensional image can be reproduced, but the image quality is degraded due to optical aberrations

Engineering Contradiction:

Improvehologram generation precisionVSAvoidthree-dimensional image quality

Core Design Contradiction:

Manufacturing precisionVSMeasurement precision

Solution Approach 1:

The hologram plane is divided into multiple segments, and aberration compensation is performed separately for each segment using specific masks and kernels. This segmentation allows precise control of optical aberrations in different regions of the hologram, improving overall three-dimensional image quality while maintaining manufacturability.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different masks and kernels are applied to different hologram plane segments based on their specific aberration characteristics. This local quality approach ensures that each segment receives optimized aberration compensation tailored to its position and optical properties, resolving the contradiction between general hologram generation and localized image quality.

Inventive Principle:

Principle #3Local quality

2Measurement precision

If aberration compensation processing is added to the hologram generation process, then three-dimensional image quality is improved, but the processing complexity increases

Engineering Contradiction:

Improvethree-dimensional image qualityVSAvoidhologram generation process complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

Masks and kernels for aberration compensation are pre-calculated and stored for each hologram plane segment before actual hologram generation. This preliminary action eliminates the need for real-time complex calculations during hologram display, improving image quality while keeping the processing complexity manageable through pre-computation.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The aberration compensation process uses copied and adapted masks and kernels across different hologram plane segments. Instead of creating entirely new compensation parameters for each segment, the system uses templates that can be copied and adjusted, reducing processing complexity while maintaining improved image quality.

Inventive Principle:

Principle #26Copying

Data Source

PatentUS12314008B2Holographic display system and method for generating hologram by compensating for aberration of holographic display device

Publication Date: 2025.05.27 SAMSUNG ELECTRONICS CO LTD

AI summary

Provided are holographic display systems and methods for generating a hologram by compensating for aberrations of a holographic display device. The holographic display system may include a holographic display device and a hologram generating device. The hologram generating device may generate a hologram by propagating hologram segments, using kernels generated by modeling each aberration corresponding to each of hologram plane segments to compensate for aberrations.