Blood oxygen saturation determination method, device and computer equipment

By acquiring multispectral band images and performing whiteboard correction and parameter lookup table calibration, the problem of insufficient accuracy in blood oxygen saturation measurement under different lighting conditions was solved, achieving efficient and accurate blood oxygen saturation measurement under different lighting conditions.

CN122350697APending Publication Date: 2026-07-10INNERMEDICAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INNERMEDICAL CO LTD
Filing Date
2024-12-31
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

Existing blood oxygen saturation measurement technologies cannot accurately capture the spatial information of tissue oxygenation distribution under different lighting conditions, and motion phenomena further reduce the accuracy of measurement results.

Method used

By acquiring target area images and whiteboard images based on multispectral band acquisition, the three-channel data of each first link pixel in the target area image are extracted and corrected. The target coordinates are determined using a parameter lookup table, and then the blood oxygen saturation is calculated, avoiding color deviation interference caused by external factors.

Benefits of technology

Ensuring the accuracy of blood oxygen saturation measurement under different lighting conditions improves the efficiency and accuracy of blood oxygen saturation determination, especially maintaining high accuracy even in the presence of shadows or uneven lighting.

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Abstract

The application relates to a blood oxygen saturation determination method, device and computer equipment. The method comprises the following steps: acquiring a target site image and a whiteboard image collected based on multiple spectral bands; extracting three-channel data of each first link pixel point in the target site image; correcting the three-channel data of each first link pixel point in the target site image based on the pixel points in the whiteboard image to obtain corrected three-channel data; determining target coordinates of each first link pixel point in the target site image in a parameter lookup table based on the corrected three-channel data; and determining blood oxygen saturation of each first link pixel point in the target site image based on the target coordinates. The three-channel data of each first link pixel point in the target site image is corrected based on the pixel points in the whiteboard image, so that the accuracy of the blood oxygen saturation of each first link pixel point can be ensured under different illumination conditions.
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