Terms and definitions
term definition
3DOF three degrees of freedom (i.e. only position)
6DOF six degrees of freedom (i.e. position and orientation)
5DOF five degrees of freedom (i.e. one degree less in orientation)
ART Controller calculates tracking data and generates the data output stream
(compatible to ARTTRACK2 , ARTTRACK3 , ARTTRACK5 ,
ARTTRACK5/C , TRACKPACK/E )
ARTTRACK Controller (discontin-
ued)
calculates tracking data and generates the data output stream
(compatible to ARTTRACK1 , ARTTRACK2 , ARTTRACK3 )
ARTTRACK 2 & 3 (discontinued) infrared camera
ARTTRACK5 infrared camera
ARTTRACK5/C infrared camera dedicated for multi-sided projections
body calibration teach the system the geometry of a rigid body
body, rigid body rigid arrangement of multiple markers intended for 6DOF track-
ing (see also "target")
calibration angle (410mm or 710mm) belongs to the room calibration set and defines origin and orien-
tation of the room coordinate system
ceiling suspension equipment to mount an infrared camera to the ceiling
DTrack2
backend software software running on the controller doing all necessary calcula-
tions
frontend software graphical user interface running on customer’s computer to con-
trol the controller
Field of View (FoV) is the area of interest captured on the camera’s image
finger thimble a fixture for the finger tip to hold the active marker(s)
Fingertracking tracks the orientation of the hand and the position of the fingers
Flystick wireless interaction device for virtual reality (VR) applications
hand geometry describes the dimensions of your hand and fingers
hybrid tracking sensor fusion of optical and inertial data into one consolidated
output
inertial sensor an inertial measurement unit simultaneously measures 9 phys-
ical properties, namely angular rates, linear accelerations (un-
used) and magnetic field components (unused) along all 3 axes.
This is achieved using solid state gyroscopes for measurement
of roll, pitch and yaw and optical tracking for drift correction.
infrared optical tracking position measurement of bodies (subjects or objects) based
upon infrared light and optical measurement procedures
license code (license key) software key to unlock certain capabilities of the tracking system
marker object either made of retro reflective material or LED for position
tracking (3DOF)
Measurement Tool a pointing device which allows to measure the position of the
tool’s tip with high accuracy
measurement volume defines the volume where optical tracking is possible
modulated flash infrared signal which is used for wireless synchronization
motion capture track movements of a human body
mutual blinding one camera sees disturbing reflections caused by the infrared
flashes of another one
prediction predicts output for the specified time in the future to compensate
tracking and rendering latency
room calibration teach the system the position of each camera and define origin
and orientation of the room coordinate system
room calibration set consists of angle and wand
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