Image-Matched Tissue Element Measurement for Near-Infrared Repeatability
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Solution Overview
Problem
Near-infrared spectral measurement of tissue elements, such as blood sugar and hemoglobin, is challenging due to weak absorption, large background noise interference, and variability in measurement conditions, making it difficult to extract accurate signals.
Innovation Solution
A method involving image matching of target and template images to determine a reproducible measurement position, followed by multiple repeatability tests to ensure the measurement position meets predetermined evaluation parameters, using probes and fixation parts to stabilize the measurement process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If near-infrared spectral measurement is performed on tissue elements, then rapid non-invasive multidimensional information can be obtained, but the weak absorption signal is masked by large background noise from physiological noise, measurement conditions, and instrument noise
Solution Approach 1:
The patent applies preliminary action by performing multiple repeatability tests before the actual measurement to establish a baseline evaluation parameter range. This preliminary characterization of the measurement position allows the system to account for background noise and variability in advance, enabling better signal extraction during the actual measurement by comparing against the pre-established baseline.
2Reliability
If measurement is performed at arbitrary positions, then operation is simple, but measurement reproducibility is poor due to variability in measurement conditions
Solution Approach 1:
The patent uses copying by creating a digital template of the target position's image characteristics from the image information. This template serves as a reference model that can be reused for position verification, eliminating the need for complex real-time analysis during measurement. The system simply compares new image data against the stored template to confirm proper positioning, greatly simplifying operation while ensuring reproducibility.
3Reliability
If multiple repeatability tests are performed to ensure measurement quality, then measurement reliability is improved, but measurement time increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the number of repeatability tests based on the evaluation parameters obtained. If the initial tests show good reproducibility and evaluation parameters are within acceptable ranges, the system can reduce the number of additional tests needed. Conversely, if variability is high, more tests are performed. This adaptive approach maintains measurement quality while minimizing unnecessary time consumption.
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
Ensures reproducibility of measurement conditions by accurately determining the measurement position, reducing interference, and enhancing the accuracy and stability of tissue element measurements.
Implementation Method 1
acquiring a target image information of a target position of a tissue to be measured
Implementation Method 2
A near-infrared historical spectral measurement method has characteristics of rapidness, non-invasiveness, and multidimensional information, etc., and is generally adopted to measure tissue element
Data Source
AI summary
Provided are a method, an apparatus and a system of measuring tissue element, an electronic device, and a medium. The method includes: acquiring a target image information of a target position of a tissue to be measured and a pre-stored template image information of a locating position, the target image information includes a surface target image and/or an internal target image, and the template image information includes a surface template image and/or an internal template image; determining the target position as the locating position in response to the target image information being matched with the template image information; determining a measurement position according to the locating position and a corresponding relationship between the locating position and the measurement position of the tissue to be measured, the measurement position is a position meeting a reproducibility; and performing a tissue element measurement at the measurement position.