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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]
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