Holographic Image Registration for 3D See-Through Object Alignment

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Solution Overview

Problem

Existing technologies struggle to provide a 3D see-through vision that accurately aligns computer-generated holographic images with real objects, lacking natural depth cues and alignment with actual spatial locations.

Innovation Solution

A method and system that acquires 3D structures of objects with markers, projects holographic images aligned with these markers, providing both eye convergence and focus accommodation cues, and allows alignment through registration markers and computational adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If computer-generated holographic images are projected without registration markers, then the system complexity is reduced, but the alignment precision between holographic images and real objects deteriorates

Engineering Contradiction:

Improvesystem complexityVSAvoidalignment precision

Core Design Contradiction:

Device complexityVSManufacturing precision

Solution Approach 1:

Registration markers serve as intermediary elements that facilitate precise alignment between holographic images and real objects. These markers are detected by the imaging system and used as reference points to calculate transformation parameters, enabling accurate spatial registration without requiring complex alignment mechanisms

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The system creates a digital copy of the physical space by detecting registration markers and generating transformation parameters that map holographic image coordinates to real-world coordinates. This copying approach allows precise alignment through computational transformation rather than physical adjustment

Inventive Principle:

Principle #26Copying

2Ease of operation

If holographic images are displayed without proper depth cues, then the ease of operation is improved, but the measurement precision of spatial location deteriorates

Engineering Contradiction:

Improveease of viewingVSAvoidspatial location precision

Core Design Contradiction:

Ease of operationVSMeasurement precision

Solution Approach 1:

The system changes the optical parameters of the holographic display to provide accurate depth cues. By controlling the focal depth and convergence points of the holographic image, the system enables viewers to perceive correct spatial relationships and distances, improving both measurement precision and viewing comfort

Inventive Principle:

Principle #35Parameter changes

3Loss of time

If registration markers are not used, then the loss of time in the alignment process is reduced, but the measurement precision of marker alignment deteriorates

Engineering Contradiction:

Improvealignment timeVSAvoidmarker alignment precision

Core Design Contradiction:

Loss of timeVSMeasurement precision

Solution Approach 1:

Registration markers are placed on objects before the holographic imaging process begins. This preliminary action establishes known reference points that guide the alignment process, enabling the system to quickly calculate transformation parameters and achieve precise alignment without time-consuming manual adjustment

Inventive Principle:

Principle #10Preliminary action

4Device complexity

If holographic images are projected without focal depth control, then the device complexity is reduced, but the reliability of depth perception deteriorates

Engineering Contradiction:

Improvefocal control complexityVSAvoiddepth perception reliability

Core Design Contradiction:

Device complexityVSReliability

Solution Approach 1:

The system dynamically adjusts the focal depth parameter of the holographic display based on the spatial location of objects and registration markers. This parameter control ensures that holographic images are displayed at the correct focal planes, providing reliable depth perception and maintaining the illusion of three-dimensional space

Inventive Principle:

Principle #35Parameter changes

Applied Scientific Principles

This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.

Function Achieved in This Case

Enables accurate alignment of holographic images with real objects, providing natural depth cues and allowing simultaneous viewing of real and projected images in the same space, enhancing medical and construction applications.

Implementation Method 1

producing an interference based computer generated hologram (CGH) image of the body organ

Methodology Applied

Scientific EffectHolography: Interference

Implementation Method 2

The holographic image of an object provides both eye focus accommodation and eye convergence for a viewer, as natural distance/depth cues for a viewer's eye

Methodology Applied

Scientific EffectLight propagation: Light

Data Source

PatentUS12481243B2Method and system for displaying holographic images within a real object

Publication Date: 2025.11.25 REAL VIEW IMAGING

AI summary

A system for displaying a holographic image of an object behind a real object surface, including a computing unit for computing data for displaying a three-dimensional image of an object, a location measurement unit for measuring a location of a surface of a real object, a display for displaying the three dimensional image of the object, wherein the computing unit is adapted to compute data to display the three-dimensional image of the object at least partly behind the surface of the real object. Related apparatus and methods are also described.