Abstract: Methods and systems for monitoring and measuring form. A form analysis system can include a flexible garment, a sensor array including two or more sensors positioned on portions of the garment such that at least two of the two or more sensors are positioned on garment such that they align with body parts of the wearer of the garment that are separated by a joint, a harness coupled to the sensor array, the harness having stretchable wiring for communicating signals generated by the sensor array, and a hub coupled to the harness and configured to receive signals from the sensor array, the hub including a transmitter to transmit received signals to a base station.

Abstract: Systems and methods for determining orientations measurements are provided. In one aspect, the method includes receiving a magnetic field state of an object, receiving a magnetic field measurement associated with the object, receiving an inertial measurement unit (IMU) measurement associated with the object, receiving a previous gravitational state term associated with the object, determining a gravitational acceleration state term based on the IMU measurement and the previous gravitational state term, determining a magnetic field state term based on the IMU measurement, the magnetic field measurement, and the gravitational acceleration term, and determining an orientation of the object using the gravitational acceleration state term and the magnetic field state term. The magnetic field measurement may be received from a magnetometer, and the IMU measurement may be received from a gyroscope and an accelerometer.

Abstract: Acoustic information is obtained from an acoustic sensor of a mobile computing device. Location information of the mobile computing device can be obtained from location sensors of the mobile computing device. A context of the acoustic information can be determined and can have an assigned context attribute. A context-based acoustic map can be generated based on the context and the location information. Offers can be presented to a user of the mobile computing device. The offer can have an offer attribute matching the context attribute and a location attribute matching the location information.