System information

Vicon MX Hardware System Reference Glossary-15
3D Workspace. You can use any of the
default .mkr files supplied with your Vicon
application software or create your own
to suit your particular needs. Vicon-
supplied .mkr files are installed under the
Vicon Models directory (by default,
C:\Program Files\Vicon\Models). Also see
Kinematic model, Label, Marker, Object,
Segment, and Subject.
Model marker See Marker definition 2.
Moment A vector quantity representing
the turning effect produced by a force.
This is calculated as the product of the
force and the perpendicular distance
between the point of application of the
force and the axis of rotation. Also see
Force and Vector.
.monitors file An XML file with
extension .monitors, which contains
configuration settings for event monitors
and alarms created in the Monitors status
pane in Vicon Nexus. Also see Nexus.
Motion capture The recording of
motion data with a Vicon system from
retroreflective markers attached to a
subject or object. Also Marker, Object,
and Subject.
Motorcycle pose A form of the neutral
pose typically used when capturing a RoM
trial in Vicon iQ. In this pose, the subject
stands in the basic neutral pose with the
knees slightly flexed, the arms out
straight to the sides, elbows bent
forward, and hands in front with palms
facing down (in a position similar to
holding the handlebars of a motorcycle).
Also see Neutral pose, T-pose, and Range
of Motion (RoM) trial.
Movie capture A Vicon system option
for Workstation application software that
enables movie data from analog video
cameras or digital video cameras to be
captured simultaneously with optical
motion data from Vicon systems. This
functionality has been augmented by the
Reference Video option available for
Vicon MX systems.
For analog camera capture, a Broadway
option card must be installed in the
host PC, and the captured data is stored
in .mpeg files. For DV camera capture, an
IEEE 1394 option card is required, and
the captured data is stored in .avi files.
Also see .avi file, DV, IEEE 1394, .mpeg
file, Polygon, Reference video, Vicon iQ,
Vicon MX, and Workstation.
.mpeg file A binary file with extension
.mpeg or .mpg, which contains video and
audio information in the MPEG (Moving
Picture Experts Group) standard format.
Vicon application software can play and
generate .mpeg files. Also see Reference
video.
.msk file Mask file. A binary file with
extension .msk, which contains a set of
user-defined camera masks to obscure
raw, 2D data viewed by Vicon cameras in
a Vicon V-series system. By default, .msk
files are saved to the active Session
folder of the open database. Also see
Camera mask and Vicon V-series system.
MX Bridge An optional MX hardware
unit that provides the interface between
Vicon MX and any MCam, MCam2, VCam,
and SV Cam cameras supported
previously by Vicon V-series systems.
The MX Bridge acts like an MX emulator
and transforms the images sent by these
V-series cameras to the grayscale data
format used in Vicon MX. Also see
Grayscale data, Vicon MX, and Vicon
V-series system.
MX Camera A high-resolution, digital,
CMOS sensor camera used in Vicon MX
systems supplied before July 2006; later
systems use MX+ cameras.
Three types of MX camera are available:
MX40, MX13, and MX3. MX cameras
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