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 5/681 (2013.01); A61B 5/6803 (2013.01); A61B 5/6833 (2013.01); A61B 5/6898 (2013.01); A61B 2562/0271 (2013.01)] | 19 Claims |
1. An apparatus for estimating body temperature, the apparatus comprising:
a sensor comprising:
a detector configured to detect light; and
at least two light sources that are spaced apart from the detector by different distances, and are configured to emit the light to the detector through an object, to obtain spectra through a plurality of light paths between the at least two light sources and the detector; 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 a reference 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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