Inertial measurement Unit (IMU)

Definition: An Inertial Measurement Unit (IMU) is a device that measures acceleration, angular velocity, and sometimes the body’s orientation, using a combination of accelerometers, gyroscopes, and/or magnetometers. It is often used for motion tracking in robotics, virtual reality, and other applications. In fNIRS research, IMU can be attached to the subject’s head to track head motion during an fNIRS experiment, and this information can be used to remove the effects of head motion on the fNIRS data.

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Related terms: Motion Correction, Accelerometer, Gyroscope, Magnetometer

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