Vicon Valkyrie Quick Start Guide
15 Dec 2022, Revision
Configure your Vicon Valkyrie system
Start your Vicon application software, ensure it is
in Live mode and that a
Camera view is displayed.
In the System panel, select one camera.
Notice that the Properties for this camera are listed
at the bottom of the pane.
Have someone wave the calibration wand in the
capture volume and ensure that you can see
markers moving in the view pane.
Note the Grayscale Mode property. The default
setting is Auto, which tells the cameras to send to
the Vicon software all the centroid data for grayscale
blobs it can circle-fit. If any grayscale blobs cannot
be circle-fitted, the grayscale data is sent to the
Vicon software so it can try to circle-fit the blobs.
Look at the Strobe Intensity setting. With a
value of 1, the cameras send as much light as
possible into the volume.
Zoom in to a marker by right-clicking and dragging
the mouse. Notice how the pixels change as you
lower the light (to view images from a grayscale
blob,
Grayscale Mode must be set to All).
Notice the Threshold property. It tells the
camera how bright a pixel must be to be accepted
by the camera. Zoom in to a marker and notice how
the pixels change as you adjust the property.
Adjust the Strobe and Threshold settings so that
you see only the 2D circular-shaped markers in your
volume. Adjust the Strobe Intensity setting only as
low and the
Threshold only as high as needed.
Set camera focus and aperture
Place three markers in the middle and on the far
side of the capture volume.
Holding the camera body, unclip the lens cover
from the lens
.
Leaving the focus on infinity (∞), close the
aperture to as high an f-stop value as possible, so
that you can still see the markers at the furthest
distance required.
For each camera, turn the aperture ring (the ring
with the f-stops) until the aperture is fully open. Later
you will turn the ring back, increasing the f-stop
number and closing the aperture.
Focus and aperture rings on a Vicon Valkyrie VKX
In general, it’s better to run with a low
Threshold setting and more closed
aperture, than a high Threshold and open
aperture. (See Threshold in Adjust camera
settings, page 14.)
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