System information

Glossary-4 Vicon MX Hardware System Reference
calibration kit. Also see Calibration kit,
Calibration object, and Camera
calibration.
Camera calibration Also known as
system calibration and dynamic
calibration (DynaCal). The two- stage
process by which Vicon application
software calibrates the system.
During the dynamic stage, a calibration
wand is used to measure the physical
position and orientation of each Vicon
camera in the system and determine any
lens linearization correction required.
During the static stage, a static
calibration object is used to set the global
coordinate system for the capture or
tracking volume.
The camera calibration is used in
reconstructing the 3D motion from all the
cameras. Also see Calibration wand,
Capture volume, Global coordinate
system, Static calibration object, and
Tracking volume.
Camera calibration repair The
process by which Vicon application
software repairs the calibration for one or
more specified cameras. This might be
required if a camera has been moved
from its original position or has been
identified as requiring repair. Also see
Camera calibration and Calibration health
check.
Camera interface unit See BOB.
Camera mask In Vicon V-series
systems, a simple shape that is used to
obscure raw 2D camera data, such as
unwanted reflections, opposing camera
strobe units, and direct light sources that
are seen by a camera. You can have
Vicon application software automatically
create camera masks, or you can create
them yourself. The equivalent
functionality for Vicon MX systems is
provided by threshold grids. Also see
.msk file, Vicon V-series system, and
Threshold grid.
Camera ray A line displayed in the
3D Workspace identifying the Vicon
camera that contributed to the
reconstruction of a marker. Also see
3D Workspace, Marker, and
Reconstruction.
Camera resection See Camera
calibration repair.
Camera video sensor A device that
measures illumination and converts it to a
digital signal. Also see MX Camera,
Sensor, and Vicon V-series system.
Camera view pane A type of view
pane in a Vicon application software
window in which raw, 2D camera data for
an individual camera is displayed. Also
see View pane.
Capture See Motion capture.
Capture data A single, contiguous
period of motion capture data acquired by
a Vicon system. This can include video
data from Vicon cameras; analog data
from third-party analog devices; or movie
or reference data from external video or
audio recording devices.
Capture space The full dimensions
(length, width, and depth) of the room
being used as a Vicon motion capture
studio (for entertainment applications) or
laboratory (for life sciences applications).
Capture volume The area of the
capture space in which Vicon cameras are
able to capture the motion of trial
subjects. Also see Capture space,
Calibration volume, Reconstruction
volume, and Subject.
.car file Capture Analog Reconstruction
file. A text file with extension .car, which
contains all the parameters required for
capture and reconstruction in Workstation
application software. This file is created
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