A novel multiple camera calibration algorithm uses human joint points for matched key points. A recent machine-learning based human joint detector provides joint positions with labels (e.g. left wrist, right knee, and others). In single person situation, it directly provides matched key points between multiple cameras. Thus, the algorithm does not suffer a key-point matching problem, even in a very sparse camera configuration, which is challenging in the traditional image feature-based method. This algorithm provides easy setup for a multiple camera configuration for marker-less pose estimation.

A method for calibrating respective estimated joint axis directions for each of a pair of body mounted sensors, one of the pair of sensors being located to each side of the joint comprising a joint axis, the sensors each calculating a pitch angle about respective first sensor axes and a roll angle about respective second sensor axes, the first and second sensor axes together with a third sensor axis orthogonal to the first and second sensor axes forming a sensor frame, the method comprising: receiving orientation data for each of the two sensors, the orientation data being associated with at least two different poses of the joint for each of the two sensors and the orientation data comprising the pitch angle and the roll angle of the sensor for each pose; calculating a sensor frame estimated gravity vector for each pose associated with each sensor based on the pitch and roll angles for each pose associated with each sensor and a gravity vector running along a vertical direction; and determining the estimated joint axis directions for the joint axis, relative to the first and second sensor axes, for each sensor that minimise a loss function concerning projections of each sensor frame estimated gravity vector for each pose associated with each sensor on to the estimated joint axis direction for the respective sensor.

The invention relates to a camera system for surgical navigation systems including a plurality of cameras mounted in a room. At least three cameras are mounted in the room which are operated in at least two different modes. In the first mode at least a subset of the cameras is operated to determine the position of markers and in a second mode at least a subset of the cameras is operated to determine the position of surfaces of the room.

A catheter calibration system includes a calibration chamber, a receiver and a processor. The calibration chamber is configured to generate a calibration magnetic field that oscillates at a first frequency. The calibration chamber includes a cavity for inserting a distal end of a catheter having one or more magnetic-field sensors. The receiver is configured to be connected to the catheter, to receive from the catheter one or more signals, which are generated by the one or more magnetic-field sensors in response to the calibration magnetic field, and to convert the one or more signals into one or more respective intermediate frequency (IF) signals having a second frequency that is lower than the first frequency. The processor is configured to receive the one or more IF signals from the receiver and to calculate catheter navigation calibration data from the one or more IF signals.

Inventions herein include at least mostly optically clear orthodontic braces and feet orthotics (collectively referred to as “appliances”) with backscatter based sensors. These two categories of appliances share a common property requiring that the given appliance must be correctly custom manufactured to fit a patient's own particular geometry and dimensions of their teeth and/or feet in order to perform as intended. Incorporating such appliances with backscatter based sensors enables simple, easy, fast, efficient, and cost effective measurements, in real-time or near real-time, of stresses, forces, structural changes, and/or the like in the given appliance; which in turn can aid in determining if adjustments or re-manufacture of the appliance may be needed or desired; and/or wherein such measurements may aid in evaluating performance of the given appliance. In some embodiments, such measurements may also be taken remotely away from a practitioner; and then communicated to a remotely located practitioner.

Method and system for providing basal profile modification in insulin therapy for use with infusion devices includes periodically monitoring the analyte levels of a patient for a predetermined period of time in order to determine, based on the monitored analyte levels, an appropriate modification factor to be incorporated into the underlying basal profile which was running at the time the periodic monitoring of the analyte levels were performed.

The present disclosure relates to a method for determining a user-specific hair treatment with determination and inclusion of the degree of damage of the hair. To this end, the content of cysteic acid is firstly determined with the aid of near-infrared and/or infrared spectra of the keratin fibres of an individual and a degree of damage is derived via a calibration model. Individual treatment advice is output on the basis of the determined degree of damage.

The invention relates to a fluid analysis module that comprises for blood analysis: a module housing with a fluid inlet port; at least one fluid sensor that is integrated within the module housing and comprises a sensor surface that is able to make a fluidic connection with the fluid inlet port; a chamber integrated within the module housing. The chamber can be brought into a fluidic connection with the sensor surface of the at least one fluid sensor. At least one first liquid reservoir attached within the chamber which is able to be brought into a fluidic connection with the sensor surface of the at least one fluid sensor; and at least one module housing surface, on which an elastic, fluid-tight separating wall that is embodied in membrane-like fashion is attached At least in portions, under a separating wall at least one fluidic functional configured as a flow valve and at least one fluidic functional element configured as a delivery pump is attached so that the fluidic functional elements are operable by local mechanical deformation of the separating wall: a) only deliver fluid from the fluid inlet port into the chamber via the sensor surface and b) only deliver a liquid housed in the liquid reservoir from the liquid reservoir into the chamber via the sensor surface.

A method for operating an accessory device to guide the placement of an ostomy appliance on a user having a stoma. The method can include capturing an image or a sequence of images of the user applying the ostomy appliance to the user's body, processing the captured image or sequence of images, including: identifying a location of the stoma in one or more of the captured image or sequence of images, identifying a location of the ostomy appliance in one or more of the captured image or sequence of images, and generating location indicia representative of the location of the ostomy appliance with respect to the stoma in one or more of the captured image or sequence of images. A visual display including the location indicia associated with one or more of the captured image or sequence of images can be provided.

The test lab set-up includes a test flow bench for mounting one or more test devices, an adjustable nozzle for simulating urine flow, and a sensor for collecting data associated with the simulated urine flowing through the test device(s). A computing device for measuring and/or calculating various parameters associated with the simulated urine flow may also be included. The test device may have a shape corresponding to a handheld uroflowmeter subject to testing. The angle of the adjustable nozzle may be adjusted to test for various angles of urine flow. Similarly, the angle, pitch, and roll of the test device may be adjusted to test for various angles at which a uroflowmeter is held. As fluid flows through the test device, the sensor collects information such as, for example, flow rate, duration, volume, and the like. The sensor transmits the data collected to a computing device for additional processing.