The following tests are provided as a guide
and "self-check" for evaluating the setup and general performance of a motion
capture system. (Spaces to enter the results
of your self-tests have been provided for your use.)
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Camera Detector Sensitivity
Test
Functional Depth of Field Test
Functional Field of View Test
Illumination Interference Test
Distorted Target Image Test
Phantom Target Test
Camera Pairs Effect Test
3D Target Trajectory Creation Test
3D Target Trajectory Continuation
Optimal Target Configuration Test
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Camera
Detector Sensitivity Test Test
description:
View the camera image to determine if background
information is detected. Clothing and skin should be moved closer and
closer to the camera lens.
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Results:
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Functional
Depth of Field Test Test description:
Starting at a location beyond the target detection
range, systematically move a target closer to the camera lens. Record
the distance when the target is first imaged (far limit) by the camera
and distance at which the target is no longer properly identified (near
limit). Test these limits while the target is moving and with different
size targets. |
Results:
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Functional Field of View Test |
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Test description:
Determine the field of view (left to right) in
which the target is detected. If possible, perform this test at the near
and far limits of the functional depth of field. Relate these findings
to the lens viewing angle. |
Results:
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Illumination
Interference Test Test description:
Position two cameras such that they face each
other and determine the size of the strobe illuminations and whether the
strobe illuminations are identified as one or more targets.
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Results:
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Distorted
Target Image Test Test description:
Slowly merge images from two targets in front of
one camera. Observe and, if possible, sample the target centroid locations.
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Results:
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Test description:
Attempt to create phantom targets by placing two
targets in the camera plane of two cameras. Create an optimal camera plane
by adding a third camera. Observe the effects a third camera makes on
the phantom targets. |
Results:
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Camera
Pairs Effect Test Test description:
Place a single target in the middle of a data
reduction volume. While sampling the target's location, walk around the
target to systematically block the camera views. Measure the observed
motion in the static target's location. |
Results:
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3D
Target Trajectory Creation Test Test
description:
Start with 2 targets placed closely together.
Add one target at a time to form a line of targets that are equally spaced.
Continue this process until you have at least 6 targets in a straight
line. Observe how the target tracking software works on each successive
number of targets. |
Results:
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3D
Target Trajectory Continuation Test
description:
While measuring its location, drop a target on
the floor and let it bounce. |
Results:
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Optimal Target Configuration Test |
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Test description:
Place 3 targets on the foot and walk through the
data capture volume while sampling the target locations. Insure that the
target images do not merge. Do the targets track properly?
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Results:
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Intro
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