Near-infrared blood glucose detection device and equipment based on polarized light imaging

Abstract

The invention relates to a near-infrared blood glucose detection device and equipment based on polarized light imaging, wherein the device comprises a processor, and when the processor runs in a computer program stored in a computer readable storage medium, the following steps are realized: S1, establishing a double-layer skin optical model of a human body according to the skin condition of the human body; S2, setting relevant optical parameters of photons propagating in the skin, and establishing a Monte Carlo simulation process; S3, carrying out Monte Carlo simulation calculation to obtain a Mueller matrix of the back of the human body skin; S4, calculating through each array element of the Mueller matrix to obtain each polarization parameter; and S5, comparing the change rate of each polarization parameter along with the scattering coefficient and the absorption coefficient to obtain a specific polarization parameter which is better than the specific polarization parameter of a method which is used for extracting the absorption information of the blood glucose only by using the light intensity information. According to the device, the shallow surface layer scattering influence is reduced based on polarization parameters, so that other microstructure information such as deep absorption is obtained, the signal-to-noise ratio of blood glucose detection can be increased, and the deep absorption measurement precision is improved.

Description

technical field [0001] The present invention relates to blood sugar detection using optical methods such as near-infrared spectroscopy, in particular to a device and equipment for near-infrared detection of blood sugar based on polarized light imaging. Background technique [0002] Blood glucose detection using optical methods such as near-infrared spectroscopy has great application prospects due to its non-invasiveness, but due to the complex background changes of the human body, it is easily affected by its own metabolism and the surrounding environment, and the content of glucose in human blood is low. Regions have weaker characteristic absorption, resulting in a lower signal-to-noise ratio for the method. [0003] Methods such as dual optical paths and orthogonal signal correction are commonly used to remove background interference in the near-infrared spectrum, but they are not suitable for such a complex system as the human body. Therefore, it is very important to fin...

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a near-infrared blood sugar detection device and equipment based on polarized light imaging to solve the problem of low blood sugar absorption detection accuracy existing in the existing near-infrared detection blood sugar method

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