Follow

# Output Parameters in MVN

With the MVN software there are a very large set of kinematic parameters that provided. This article contains an overview of all the parameters that are provided together with their dimensions.

# Xsens Data

 Parameter Description Dimensions in MVN Segments Acceleration 1x3 acceleration vector (x, y, z) of the origin of the segment in the global frame. 1x3 vector [m/s2] Orientation 1x3 Euler angle vector (x, y, z) of the origin of the segment in the global frame. 1x3 vector [degrees] Position 1x3 position vector (x, y, z) of the origin of the segment in the global frame 1x3 vector [m] Angular Acceleration 1x3 angular acceleration vector (x, y, z) of the origin of the segment in the global frame. 1x3 vector [deg/s2] Velocity 1x3 velocity vector (x, y, z) of the origin of the segment in the global frame 1x3 vector [m/s] Angular Velocity 1x3 angular velocity vector (x, y, z) of the segment in the global frame 1x3 vector [deg/s] Contacts Boolean value indicating if there was contact detected for that frame 0 or 1 Points 1x3 position vector (x, y, z) of the origin of each point ('bony landmark') in the global frame. 1x3 vector [m] Sensor Data Orientation 1x3 Euler angle vector (x, y, z) of the sensor 1x3 vector [deg] Magnetic Field 1x3 sensor magnetic field vector (x, y, z) of the sensor 1x3 vector [a.u.] Free Acceleration 1x3 sensor free acceleration vector (x, y, z) of the sensor. 1x3 vector [m/s2] Joints Joint angle 1x3 Euler representation of the joint angle vector (x, y, z) , calculated using the Euler sequence ZXY using the ISB based coordinate system. 1x3 vector [deg] Center of Mass Position 1x3 position of the body Center of Mass (x,y,z) in the global frame 1x3 vector [m] Velocity 1x3 velocity of the body Center of Mass (x,y,z) in the global frame 1x3 vector [m/s] Acceleration 1x3 acceleration of the body Center of Mass (x,y,z) in the global frame 1x3 vector [m/s2]

# External Data

 Parameter Description Dimensions in MVN External Position GNSS Measurement 1x3 vector with readings from GNSS (latitude, longitude, altitude) 1x3 vector [degrees] Position 1x2 position vector of the avatar  (latitude, longitude) with respect to the global origin. 1x2 vector [degrees] Position 1x3 vector (horizontal accuracy, vertical accuracy, velocity accuracy) 1x3 vector [m and m/s] HTC vive Objects HTC vive Orientation 1x3 Euler angle vector (x, y, z) of the tracker [degrees] Position 1x3 position vector (x, y, z) of the tracker in the global frame [m] Finger Data Orientation 1x3 Euler angle vector (x, y, z) of each point defined in the hand in the global frame. [degrees] Position 1x3 position vector (x, y, z) of each point defined in the hand in the global frame. [m] External Data Electromyography Data Muscle Activity 1x1 vector (muscle activity) [mV]