H&E Dye Spectral Property Determination in Multiband Image Processing
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Solution Overview
Problem
Current image processing systems for pathological diagnosis face challenges in accurately determining the spectral properties of dyes used in staining biological tissue specimens, particularly hematoxylin and eosin, which affects the accuracy of dye amount estimation and color normalization in multiband images.
Innovation Solution
An image processing system that includes a multiband signal acquisition unit and a dye spectral property determining unit, which generates new spectral properties for each dye based on a prescribed change model and determines the spectral properties using multiband signal values, allowing for accurate estimation of dye amounts and correction of staining conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If standard spectral properties are used for dyes in pathological specimens, then the processing is simple, but the accuracy of dye amount estimation and color normalization deteriorates due to variations in staining conditions
Solution Approach 1:
The system performs preliminary actions by acquiring multiband images of standard staining specimens under various staining conditions before actual diagnosis. These pre-acquired images are used to generate standard spectral properties that account for staining variations, eliminating the need for complex real-time spectral measurement during diagnosis.
Solution Approach 2:
The system creates a copy of the spectral properties by capturing multiband images of standard specimens and extracting spectral information from these copies. This copied spectral data is then used to represent the actual spectral properties of dyes in the specimen, avoiding the need for direct spectral measurement of the stained tissue.
2Reliability
If multiband image capturing is performed to correct color and estimate dye amount, then the diagnostic accuracy improves, but the processing time and complexity increase
Solution Approach 1:
The system performs preliminary extraction of spectral properties from multiband images of standard specimens during off-peak times or in advance. This pre-processing allows the actual diagnosis to proceed faster using the pre-computed spectral data, reducing the time penalty while maintaining diagnostic accuracy.
Solution Approach 2:
The system uses feedback from the multiband image analysis to automatically adjust and refine the spectral properties. By analyzing the relationship between captured image data and known staining characteristics, the system iteratively improves the spectral property estimation, enhancing diagnostic accuracy without requiring excessive processing time.
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
This system enables high-accuracy determination of dye spectral properties and amounts, improving color normalization and image quality, thereby enhancing diagnostic accuracy and efficiency in pathological diagnosis.
Implementation Method 1
Transmittance is a physical quantity representing the ratio of transmitted light to incident light at each wavelength
Implementation Method 2
determines the spectral properties of each dye based on the new spectral properties and on the multiband signal values
Data Source
AI summary
Provided is an image processing system including a multiband signal acquisition unit and a dye spectral property determining unit. The multiband signal acquisition unit acquires a multiband signal value of a subject specimen that has been stained with H&E dyes. The dye spectral property determining unit generates new spectral properties of the H dye and the E dye by varying standard spectral properties previously set to each of the H dye and the E dye according to a spectral property change model, and determines the spectral properties of the H dye and the E dye based on the generated new spectral properties and multiband signal values.