A physiological information system includes: a plurality of physiological information sensors configured to acquire physiological information data of a subject being tested, and a physiological information processing apparatus communicatively connected to each of the plurality of physiological information sensors. The physiological information processing apparatus is configured to transmit a synchronous packet toward each of the plurality of physiological information sensors. Each of the plurality of physiological information sensors is configured to: acquire the physiological information data of the subject being tested; receive the synchronous packet transmitted from the physiological information processing apparatus or a trigger signal associated with the synchronous packet; start AD conversion processing for the acquired physiological information data when receiving the synchronous packet or the trigger signal; and transmit the physiological information data converted into digital data to the physiological information processing apparatus.

A system for measuring health data includes a measurement device. The measurement device includes at least one measurement interface to receive a first fluid sample, a processor to measure one or more first characteristics of the first fluid sample, and at least one memory device to store first data. The processor reads the first data and measures the one or more first characteristics of the first fluid sample according to the first data. The at least one memory device also stores second data. The processor reads the second data instead of the first data to reconfigure the measurement device and measures one or more second characteristics of a second fluid sample according to the second data. An external processing device may be communicatively coupled to the measurement device and may execute a healthcare application that communicates with the measurement device and may be employed to reconfigure the measurement device.

An optoelectronic sensor module and a method for producing an optoelectronic sensor module are disclosed. In an embodiment an optoelectronic sensor module includes a first semiconductor transmitter chip configured to emit radiation of a first wavelength, a second semiconductor transmitter chip configured to emit radiation of a second wavelength different from the first wavelength, a semiconductor detector chip configured to detect the radiation of the first and second wavelengths, and a first potting body being opaque to the radiation of the first and the second wavelength, wherein the first potting body directly covers side surfaces of the chips and mechanically connects the chips located in a common plane to one another, wherein a distance between the chips is less than or equal to twice an average diagonal length of the chips, and wherein the sensor module is adapted to rest against a body part to be examined.

A tissue oximetry device utilizes at least three or at least four different wavelengths of light for collection of reflectance data where the different wavelengths are longer than 730 nanometers. The three or four wavelengths are utilized to generate a range of reflectance data suited for accurate determination of oxygenated hemoglobin and deoxygenated hemoglobin concentrations. The relatively long wavelengths decrease optical interference from certain dyes, particularly methylene blue and PVPI, which may be present on tissue being analyzed for viability and further enhance the generation of accurate reflectance data. The wavelengths are 760 nanometers, 810 nanometers, and 850 nanometers, or 760 nanometers, 810 nanometers, 850 nanometers, and 900 nanometers.

The present disclosure discloses a device for efficiently extracting adaptively selected contactless multi-player heart rates includes: an acquisition module that covers a court to obtain videos from a plurality of angles during players training; a valid player obtaining module configured to remove players with low contributions to training and games in the videos; a facial ROI extraction module configured to detect whether the facial ROIs of valid players contain perfect eye region features, and use the facial ROIs containing the eye region features as best facial ROIs for heart rate extraction; and an analysis and estimation module configured to analyze the detected best facial ROIs by using blind source separation, and estimate a RGB signal by a JADE algorithm to obtain the heart rate values of the valid players.

A method for calibrating detectors of a self-contained, tissue oximetry device includes emitting light from a light source into a tissue phantom, detecting in a plurality of detectors the light emitted from the light source, subsequent to reflection from the tissue phantom, and generating a set of detector responses by the plurality of detectors based on detecting the light emitted from the light source. The method further includes determining a set of differences between the set of detector responses and a reflectance curve for the tissue phantom, and generating a set of calibration functions based on the set of differences. Each calibration function in the set of calibration functions is associated with a unique, light source-detector pair. The method further includes storing the set of calibration function in a memory of the self-contained, tissue oximetry device.

An optoacoustic imaging system includes an ultrasound transducer array, first and second light sources and a switching power supply that generates power for the light sources. The switching power supply includes an input for impeding its switching operation. A data acquisition unit samples the ultrasound transducer array for a first predetermined period of time after a pulse of light from the first light source and for a second predetermined period of time after a pulse of light from the second light source and stores the sampled data. A master processor utilizes the input to impede operation of the switching operation of the switching power supply during the first predetermined period of time after a pulse of light from the first light source, and during the second predetermined period of time after a pulse of light from the second light source.

A method and an apparatus for determining at least one smoothed data point (t.sub.k, s.sub.k) within a stream of data points {t.sub.i, s.sub.i} with 1≤i≤z, k<z is disclosed. Herein, the stream of data points {t.sub.i, s.sub.i} is consecutively acquired in a manner that a data point (t.sub.i, s.sub.i) is acquired after an acquisition of a preceding data point (t.sub.i−1, s.sub.i−1), wherein each data point (t.sub.i, s.sub.i) comprises a valid value or an invalid value or a missing value for the signal s.sub.i at a time t.sub.i. Herein, the signal s.sub.i at the time t.sub.i comprises physical, chemical, biological, environmental, and/or technical data acquired by means of a technical set-up. According to the method, a set of data points is provided, wherein for each smoothed data point (t.sub.k, s.sub.k) a smoothing set is created. For each smoothed data point (t.sub.k, s.sub.k), trailing data resulting from large gaps are removed until it is verified whether the smoothing set comprises a minimal number of data points. Thereafter, for each smoothed data point (t.sub.k, s.sub.k) an initial slope set is calculated, on which at least one exponential smoothing is applied, in which cause an at least once modified slope set is determined. By integrating the at least once modified slope set, a value for the smoothed data point (t.sub.k, s.sub.k) is determined and returned. The method provides a good degree of smoothing without introducing any lag time and with minimal distortions, and is capable of reporting derivatives for the set of smoothed data points at the same time. The method is particularly suited in real-time or nearly real-time measurements which may comprise large gaps within the stream of data points.

A method for determining oxygen saturation includes emitting light from sources into tissue; detecting the light by detectors subsequent to reflection; and generating reflectance data based on detecting the light. The method includes determining a first subset of simulated reflectance curves from a set of simulated reflectance curves stored in a tissue oximetry device for a coarse grid; and fitting the reflectance data points to the first subset of simulated reflectance curves to determine a closest fitting one of the simulated reflectance curves. The method includes determining a second subset of simulated reflectance curves for a fine grid based on the closest fitting one of the simulated reflectance curves; determining a peak of absorption and reflection coefficients from the fine grid; and determining an absorption and a reflectance coefficient for the reflectance data points by performing a weighted average of the absorption coefficients and reflection coefficients from the peak.

The present disclosure relates to a method and system for reducing radiation dose in image acquisition. The method may include obtaining first image data of a subject related to a first scan of the subject. The first scan may be of a first type of scan. The method may include reconstructing a first image of the subject based on the first image data and generating a dose plan of a second scan based on the first image. The second scan may be of a second type of scan. The method may also include obtaining second image data of the subject related to the second scan of the subject. The second scan may be performed according to the dose plan.