Apparatus and method for estimating bio- information
AssigneeSamsung Electronics Co., Ltd.
InventorsJune Young Lee, Bok Soon Kwon, Jeong Yun Seo, Woo Chang Lee, Ho Jun Chang
Life of this patent
Estimating the term…
Abstract
An apparatus and method for estimating bio-information are provided. The apparatus for estimating bio-information includes: a spectrometer configured to measure a spectrum from an object according to measurement conditions; and a processor configured to obtain signal-to-noise ratio (SNR) values for each wavelength of the spectrum measured by the spectrometer, generate a plurality of simulated absorbance spectra based on the SNR values for each wavelength of the spectrum, and determine an optimal wavelength combination for use in measuring the bio-information based on the plurality of simulated absorbance spectra.
Claims18
An apparatus for estimating bio-information, the apparatus comprising:
- a spectrometer configured to measure a spectrum from an object according to measurement conditions;
- and
- a processor configured to:
- obtain signal-to-noise ratio (SNR) values for each wavelength of the spectrum measured by the spectrometer,
- generate a plurality of simulated absorbance spectra based on the SNR values for each wavelength of the spectrum,
- obtain a plurality of prediction values based on the plurality of simulated absorbance spectra,
- calculate a Limit of Detection (LoD) value for each of a plurality of predetermined wavelength combinations, based on at least one of a mean value or a standard deviation of the plurality of prediction values,
- determine a wavelength combination from among the plurality of predetermined wavelength combinations having a minimum LoD value from among LoD values of the plurality of predetermined wavelength combinations,
- measure, using the spectrometer, spectrums of each wavelength of the determined wavelength combination within a predetermined measurement time for measuring the object,
- extract feature values for each wavelength of the determined wavelength combination,
- estimate, using a predefined estimation model, the bio-information based on the extracted feature values, and
- display, to a user of a device comprising the apparatus, the bio-information and an indication of whether the bio-information is outside of a predetermined range.
A method of estimating bio-information, the method comprising:
- measuring a spectrum from an object according to measurement conditions;
- obtaining signal-to-noise ratio (SNR) values for each wavelength of the spectrum;
- generating a plurality of simulated absorbance spectra based on the SNR values for each wavelength of the spectrum;
- obtaining a plurality of prediction values based on the plurality of simulated absorbance spectra,
- calculate a Limit of Detection (LoD) value for each of a plurality of predetermined wavelength combinations, based on at least one of a mean value or a standard deviation of the plurality of prediction values,
- determining a wavelength combination from among the plurality of predetermined wavelength combinations having a minimum LoD value from among LoD values of the plurality of predetermined wavelength combinations;
- measuring spectrums of each wavelength of the determined wavelength combination within a predetermined measurement time for measuring the object;
- extracting feature values for each wavelength of the determined wavelength combination;
- estimating, using a predefined estimation model, the bio-information based on the extracted feature values;
- and
- displaying, to a user of a device, the bio-information and an indication of whether the bio-information is outside of a predetermined range.
Dependencies are inferred from the claim text.