Virtual Microscopic Slide Staining Using Fourier Phase Imaging

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Solution Overview

Problem

Existing microscopic staining techniques suffer from variability, operator dependence, and high laboratory costs, while computational imaging methods are expensive and prone to damage, lacking efficient ways to utilize phase information for virtual staining.

Innovation Solution

A method and system that utilize Fourier ptychography microscopy to derive phase information, segment and chromatically modify components on a microscopic slide, eliminating the need for manual staining by computationally generating a chromatically modified image.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If manual staining techniques are used to visualize microscopic cells, then staining effectiveness is improved, but operator variability and laboratory costs increase

Engineering Contradiction:
Improvestaining effectivenessVSAvoidoperator variability
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent replaces manual mechanical staining procedures with a computational imaging system that uses phase information extraction and chromatic modification algorithms. The system automatically processes microscopic images to generate chromatically modified images without requiring manual staining operations, thereby eliminating operator variability while maintaining staining effectiveness.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent creates a virtual copy of the staining process by computationally generating chromatically modified images from phase information. Instead of physically applying stains to the sample, the system extracts phase information and synthesizes stained-like images through image processing algorithms, preserving the visual characteristics of stained samples without the manual intervention.

Inventive Principle:
Principle #26Copying

2Ease of operation

If computational imaging methods are used to eliminate staining, then operator variability is reduced, but system complexity and cost increase

Engineering Contradiction:
Improveoperator variabilityVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent extracts the essential phase information from the microscopic images using computational algorithms. By isolating and extracting the phase component from the image data, the system can generate chromatically modified images without requiring complex hardware modifications or additional staining equipment, thereby reducing overall system complexity while maintaining the benefits of operator independence.

Inventive Principle:
Principle #2Taking out (Extraction)

3Device complexity

If traditional microscopic imaging is used, then simplicity is maintained, but phase information cannot be efficiently obtained

Engineering Contradiction:
Improveimaging simplicityVSAvoidphase information
Core Design Contradiction:
Device complexityVSLoss of information

Solution Approach 1:

The patent introduces an intermediary computational processing layer that extracts phase information from standard microscopic images. This intermediary algorithmic layer acts as a mediator between the simple imaging process and the complex phase information extraction, allowing phase data to be obtained from conventional images without requiring specialized hardware or complex imaging systems.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 efficient, uniform, and cost-effective staining of microscopic slides by deriving phase information, reducing manual effort and variability, and enhancing image clarity with high-resolution, stain-free imaging.

Implementation Method 1

A method and system that utilize Fourier ptychography microscopy to derive phase information

Methodology Applied
Scientific EffectFourier ptychography:

Implementation Method 2

Optical phase shifts occur primarily due to the thickness and refractive index of the sample

Methodology Applied
Scientific EffectOptical phase shift:

Data Source

PatentEP4073691B1Method and system for generating a chromatically modified image of components in a microscopic slide
Publication Date: 2026.03.18 SIEMENS HEALTHCARE DIAGNOSTICS INC
  • EP4073691B1 patent drawingFigure 1
  • EP4073691B1 patent drawingFigure 2
  • EP4073691B1 patent drawingFigure 3

AI summary

A method (400) and a system (200) for generating a chromatically modified image of one or more components on a microscopic slide (303) is disclosed. In one aspect of the invention, the method includes obtaining the image of the one or more components on the microscopic slide (303). Additionally, the method (400) includes processing the image to identify the one or more components. The method (400) further includes segmenting at least one part of the one or more components identified from the image. Furthermore, the method (400) includes chromatically modifying the at least one part of the one or more components and generating a chromatically modified image of the one or more components.