CPC A61B 5/01 (2013.01) [A61B 5/0075 (2013.01); A61B 5/021 (2013.01); A61B 5/0537 (2013.01); A61B 5/14532 (2013.01); A61B 5/165 (2013.01); A61B 5/442 (2013.01); A61B 5/4872 (2013.01); A61B 5/6803 (2013.01); A61B 5/681 (2013.01); A61B 5/6833 (2013.01); A61B 5/6898 (2013.01); G01K 13/20 (2021.01); A61B 2562/0271 (2013.01)] | 4 Claims |
1. An apparatus for estimating body temperature, the apparatus comprising:
a spectrometer comprising a detector and at least two light sources that are spaced apart from the detector by different distances, and configured to obtain a spectrum through a plurality of light paths between the at least two light sources and the detector through a tissue underneath a surface of an object;
a temperature sensor configured to measure a surface temperature from the surface of the object; and
a processor configured to:
determine temperature differences that minimize differences between the spectra of the plurality of light paths and a reference spectrum measured at the surface temperature, respectively,
obtain a temperature slope based on the temperature differences that minimize the differences between the spectra of the plurality of light paths and the reference spectrum; and
estimate the body temperature of the object based on the temperature slope.
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