Abstract: An apparatus for estimating an aging level may include: a light emitter configured to emit blue light to an object; a light receiver configured to measure fluorescence emanating from the object; and a processor configured to estimate the aging level of the object based on the measured fluorescence and an aging level estimation model.

Abstract: An apparatus for estimating bio-information includes an optical sensor including a light source configured to emit light of multiple wavelengths onto an object, and including a plurality of detectors configured to detect light of each wavelength which is scattered or reflected from the object. The apparatus includes a processor configured to obtain spectra based on light of each wavelength which is detected by each detector, determine valid spectra of the obtained spectra, and estimate a bio-information value based on the valid spectra.

Abstract: An antioxidant sensor includes a pressure sensor configured to obtain a contact pressure between an object and an optical sensor; the optical sensor configured to, based on the obtained contact pressure exceeding a set threshold pressure, emit a first light of a first wavelength to the object, and receive the first light reflected or scattered from the object; and a processor configured to determine a contact portion of the object in contact with the optical sensor, set a threshold pressure, among different threshold pressures, according to the determined contact portion, and determine an antioxidant value based on the received first light.

Abstract: An apparatus for estimating bio-information according to an embodiment of the present disclosure includes a processor configured to obtain spectra from an object, obtain a component produced based on a change in pressure applied to the object, correct the spectra based on the obtained component produced based on the change in pressure, and estimate bio-information of the object based on the corrected spectra.

Abstract: An apparatus and method for biometric information detection are provided. The apparatus includes a housing, a biometric sensor disposed on a surface of the housing, and configured to detect biometric information of a subject, and an impedance measurer including biometric electrode pairs disposed around the biometric sensor, the impedance measurer being configured to measure bio-impedances of the subject using the biometric electrode pairs. The apparatus further includes a processor configured to determine a bio-impedance ratio, based on the measured bio-impedances, and determine validity of the detected biometric information, based on the determined bio-impedance ratio.

Abstract: A method and an apparatus for analyzing a component of an object are provided. The apparatus includes an image sensor including an optical module, and the optical module includes a light source configured to emit a source light, a first detector configured to detect a first light that is scattered or reflected from the object on which the emitted source light is incident, and a second detector configured to detect a second light that is emitted by the light source but is not incident on the object. The apparatus further includes a processor configured to calculate a scattering coefficient and an absorption coefficient, based on the detected first light and the detected second light, and analyze the component of the object, based on the calculated scattering coefficient and the calculated absorption coefficient.

Abstract: Provided is a spectrum processing apparatus for removing noise, caused by a change in external environment, from a spectrum obtained by a spectrometer. The spectrum processing apparatus includes: a spectrometer configured to measure a first spectrum according to a change in external environment from a first object, and to measure a second spectrum for component analysis from a second object; and a processor configured to extract, based on the first spectrum, an eigenvector for each wavelength according to the change in external environment, and to obtain a final spectrum by correcting the second spectrum based on the extracted eigenvector for each wavelength.

Abstract: A method and an apparatus for analyzing a component of an object are provided. The apparatus includes an image sensor including an optical module, and the optical module includes a light source configured to emit a source light, a first detector configured to detect a first light that is scattered or reflected from the object on which the emitted source light is incident, and a second detector configured to detect a second light that is emitted by the light source but is not incident on the object. The apparatus further includes a processor configured to calculate a scattering coefficient and an absorption coefficient, based on the detected first light and the detected second light, and analyze the component of the object, based on the calculated scattering coefficient and the calculated absorption coefficient.

Abstract: An apparatus for measuring a spectrum includes a light source array configured to emit light towards an object, a photodetector configured to detect light reflected by the object; and a processor configured to measure, using the light source array and the photodetector, a plurality of temperature correction spectra based on a temperature change of the light source array, obtain a light source temperature drift vector by analyzing the measured plurality of temperature correction spectra, measure, using the light source array and the photodetector, an analysis spectrum by using the light source array and the photodetector, and adjust the measured analysis spectrum to reduce an effect of the temperature change of the light source array by using the obtained light source temperature drift vector.

Abstract: A wearable device includes a wearable device main body, a sensor part configured to contact a skin surface of a user of the wearable device, and measure a bio-signal of the user, and a shock absorber that is interposed between the wearable device main body and the sensor part to mechanically connect the wearable device main body and the sensor part, and that is configured to reduce motion transmission between the wearable device main body and the sensor part to permit the wearable device main body to move independently from the sensor part.

Abstract: Provided is a spectrometer. The spectrometer includes: a light source part configured to emit light of a plurality of wavelengths onto an object; a detector configured to detect an optical signal of each of the plurality of wavelengths as reflected from the object; a controller configured to set an amplification gain for each of the plurality of wavelengths according to photoreaction properties of the object; and an amplifier configured to amplify an output signal of the detector by using the set amplification gain.

Abstract: A method and an apparatus for analyzing a component of an object are provided. The apparatus includes an image sensor including an optical module, and the optical module includes a light source configured to emit a source light, a first detector configured to detect a first light that is scattered or reflected from the object on which the emitted source light is incident, and a second detector configured to detect a second light that is emitted by the light source but is not incident on the object. The apparatus further includes a processor configured to calculate a scattering coefficient and an absorption coefficient, based on the detected first light and the detected second light, and analyze the component of the object, based on the calculated scattering coefficient and the calculated absorption coefficient.

Abstract: An optical sensor includes light sources configured to emit light, a substrate on which the light sources are mounted, the substrate comprising holes in regions on which the light sources are mounted, and a first photodetector configured to receive a first light emitted from a front surface of each of the light sources, the first light being reflected or scattered from an object. The optical sensor further includes at least one second photodetector configured to receive a second light emitted from a rear surface of each of the light sources, the second light passing through the holes corresponding to the light sources.

Abstract: An apparatus and method for measuring a biosignal are provided. The apparatus may include an optical sensor configured to emit light in a measurement region to an object of interest, and receive an optical signal reflected from the object of interest. The apparatus may include a bioelectrical impedance sensor configured to measure a depth-specific bioelectrical impedance in the measurement region of the optical sensor.

Abstract: Provided is a spectrum processing apparatus for removing noise, caused by a change in external environment, from a spectrum obtained by a spectrometer. The spectrum processing apparatus includes: a spectrometer configured to measure a first spectrum according to a change in external environment from a first object, and to measure a second spectrum for component analysis from a second object; and a processor configured to extract, based on the first spectrum, an eigenvector for each wavelength according to the change in external environment, and to obtain a final spectrum by correcting the second spectrum based on the extracted eigenvector for each wavelength.

Abstract: An apparatus configured to estimate biometric information includes a sensor configured to measure a light signal reflected from a subject and a temperature of the subject, and a processor configured to perform temperature correction on the light signal reflected from the subject based on the temperature of the subject using a light signal-temperature relationship between the light signal reflected from the subject and the temperature of the subject to thereby obtain a temperature-corrected light signal, and estimate the biometric information of the subject based on the temperature-corrected light signal.

Abstract: An optical sensor includes light sources configured to emit light, a substrate on which the light sources are mounted, the substrate comprising holes in regions on which the light sources are mounted, and a first photodetector configured to receive a first light emitted from a front surface of each of the light sources, the first light being reflected or scattered from an object. The optical sensor further includes at least one second photodetector configured to receive a second light emitted from a rear surface of each of the light sources, the second light passing through the holes corresponding to the light sources.

Abstract: A bio-signal measuring apparatus includes an optical sensor including a photodetector and a light source array disposed around the photodetector, a first electrode disposed between the photodetector and the light source array, and a second electrode disposed on an outer periphery of the light source array. The bio-signal measuring apparatus further includes an impedance measurer configured to measure an impedance of an object, using the first electrode and the second electrode, and a processor configured to determine a contact state between the object and the optical sensor, based on the measured impedance.

Abstract: Provided is a spectrometer. The spectrometer includes: a light source part configured to emit light of a plurality of wavelengths onto an object; a detector configured to detect an optical signal of each of the plurality of wavelengths as reflected from the object; a controller configured to set an amplification gain for each of the plurality of wavelengths according to photoreaction properties of the object; and an amplifier configured to amplify an output signal of the detector by using the set amplification gain.

Abstract: A wearable device includes a body unit to be worn on a subject; a light source comprising a plurality of light emitting diodes and configured to emit light to the subject; a sensor comprising a plurality of photodiodes configured to generate electrical signals based on the light returning from the subject, the plurality of photodiodes being divided into a first photodiode (PD) group and a second PD group, and the photodiodes of the first PD group being disposed to face the photodiodes of the second PD group on the body unit; and a controller configured to extract biometric information of the subject based on the electrical signals generated by the plurality of photodiodes.