Abstract: In various embodiments, the invention teaches systems and methods for magnetic resonance imaging. In some embodiments, the invention teaches systems and methods for determining the source of pain in intervertebral discs by measuring one or more physiological biomarkers associated with disc pain and/or disc degeneration.

Abstract: A method and system for heterogeneous event detection. Sensor data is obtained and divided into discrete data windows. Each data window is defined by and corresponds to a time period of the sensor data. A time-frequency representation over the time period is calculated for each data window. A filter mask is calculated based on the data window corresponding to the time-frequency representation. The filter mask is applied for reverting the time-frequency representation to a time representation, resulting in filtered data. Features, such as extrema or other inflection points, are identified in the filtered data. The features define events, and transforming the time-frequency representation back into the time domain emphasizes differences between more and less prominent frequencies, facilitating identification of heterogeneous events. The method and system may be applied to body movements of people or animals, automaton movement, audio signals, light intensity, or any suitable time-dependent variable.

Abstract: Provided are a smart shoe and a data processing method thereof. The smart shoe includes: a stance phase measurement unit for, when one of two feet is set as a reference foot and a period during which the reference foot is taken off a ground and touches the ground again is set as a walking cycle, detecting acceleration and gyro in a stance phase in which the reference foot touches the ground; a swing phase measurement unit for detecting a difference between acceleration of the swing phase when the reference foot is taken off the ground and acceleration at the moment when the reference foot touches the ground; and a predict velocity update (PUPT) unit for obtaining and correcting a velocity of the stance phase condition.