Calibration curve generation device, target component calibration device, electronic device, and glucose concentration calibration device
AssigneeSeiko Epson Corporation
InventorsHikaru KURASAWA, Yoshifumi ARAI
Life of this patent
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Abstract
A calibration curve generation device includes an estimation unit that estimates a plurality of independent components or main components constituting observation spectral data of a plurality of samples and a regression formula calculation unit that acquires a regression formula of a calibration curve based on glucose concentration of the plurality of samples and a mixing coefficient of the independent components or the main components in the observation spectral data for each of the samples. The estimation unit selects a component waveform signal having a peak in a wavelength selected in advance as the independent components or the main components.
Claims7
A calibration curve generation device which generates a calibration curve used for deriving glucose concentration of a subject from observation spectral data of the subject including glucose, the device comprising:
- a sample observation data acquisition unit that acquires the observation spectral data related to a plurality of samples of the subject;
- a glucose concentration acquisition unit that acquires the glucose concentration related to each of the samples;
- an estimation unit that estimates a plurality of independent components or main components when the observation spectral data for each of the samples is divided to the plurality of independent components or the main components;
- and
- a regression formula calculation unit that acquires a regression formula of the calibration curve based on the glucose concentrations of the plurality of samples and a mixing coefficient of the independent components or the main components in the observation spectral data for each of the samples,
- wherein the estimation unit selects a component waveform signal having a peak in a wavelength selected in advance as the independent components or the main components.
A target component calibration device which acquires glucose concentration related to a subject including glucose as a target component, the device comprising:
- a subject observation data acquisition unit that acquires observation spectral data related to the subject;
- a calibration data acquisition unit that acquires calibration data including an independent component or a main component corresponding to the glucose and a single regression formula for calibration;
- a mixing coefficient calculation unit that acquires a mixing coefficient with respect to the glucose related to the subject based on the observation spectral data and the calibration data related to the subject;
- and
- a target component amount calculation unit that calculates the glucose concentration based on the single regression formula indicating a relationship between the mixing coefficient and the glucose concentration corresponding to the glucose and the mixing coefficient acquired by the mixing coefficient calculation unit,
- wherein the mixing coefficient calculation unit uses a component having a peak in the wavelength selected in advance as the independent component or the main component with respect to the glucose.
Dependencies are inferred from the claim text.