
MX Calibration Kit
Vicon MX Hardware System Reference 12-7
• Vicon CD “CRO Cal Files”
This CD contains the
Ergocal.cro Calibration Reference Object
file, which defines the dimensions of the supplied calibration
objects, for use with Workstation software on the host PC. This file
is installed with the Workstation 5.x application software. Keep
this CD as a backup in case the file gets damaged or deleted and
needs to be recovered.
The
Ergocal.cro file ensures that Workstation software contains
configuration entries corresponding to the calibration objects
supplied in the Calibration Kit. Once you have constructed the
desired calibration objects, you specify the appropriate entry in
the Workstation software (for details, see the Workstation System
Reference book). For example, if you assemble a 3-marker wand
using the 240 mm Wand Spacer Bar with 14 mm markers and you
attach the 25 mm markers to the Ergocal, select the following
entry in the
Calibrate Cameras dialog box in the Workstation
software:
1C) Ergocal 25mm mkr – 240mm Wand 14mm mkr
Calibration Object Usage Guidelines
Both the dynamic and static stages of the system calibration process
depend on the Vicon application software knowing the dimensions
and relative marker positions of a specified calibration object. This
definition of a calibration object is contained in a calibration reference
object (.cro) file for Workstation application software and in a Vicon
Skeleton (.vsk) file for Vicon iQ and Nexus application software. When
you configure the calibration process in your Vicon application
software, you either select the displayed entry for the desired
calibration object (Workstation) or load the .vsk file for it (Vicon iQ,
Tracker, and Nexus). For details on specifying the calibration objects
from your software, see the documentation for your Vicon software.
The following sections provide general guidance on using the
MX calibration objects for these two stages:
• Dynamic Stage (Camera Calibration) on page 12-8
• Static Stage (Capture Volume Calibration) on page 12-8
For full details on the calibration process, see the documentation for
your Vicon software.
MXhardware_Reference.book Page 7 Monday, April 30, 2007 1:56 PM
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