ASTA motion capture: Difference between revisions
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* Plugin the green plug laying on the computer's frame. | * Plugin the green plug laying on the computer's frame. | ||
=== | === Daily calibration === | ||
# Start Motive. <br/> | |||
[[File:ASTA Motive Desktop.png|100px]] | [[File:ASTA Motive Desktop.png|100px]] | ||
# Make sure that no reflectors (or reflecting surfaces) are present in the capture volume. <br/> | |||
# Find the calibration pane on the left-hand side | |||
# Press "Clear Mask" | |||
# Press "Mask Visible" | |||
# Press "Start Wanding" | |||
''' If the amount of cameras listed under "Wanding" doesn't reach 16 (the numbering doesn't matter), restart Motive and repeat the steps for daily calibration. ''' | |||
# Find the calibration wand hanging on the right-hand side of the computer. | |||
[[File:ASTA Motive Wanding.png|600px]] | |||
=== ROS client === | === ROS client === | ||
Revision as of 17:15, 1 February 2021
Specs
- Covered area: 16 m x 12 m
- Accuracy: < 5 mm
- Repetability: < 1 mm
- Number of cameras: 16
- Camera type: Prime 17W
Usage
Power on
- Depending on the lighting conditions, switch on the reflectors. The switch stands on the right-hand side after entering through the rotating door.
- Find the motion capture computer in the central shed, and turn it on by pressing on the "cooling master" logo.
- Plugin the green plug laying on the computer's frame.
Daily calibration
- Start Motive.
- Make sure that no reflectors (or reflecting surfaces) are present in the capture volume.
- Find the calibration pane on the left-hand side
- Press "Clear Mask"
- Press "Mask Visible"
- Press "Start Wanding"
If the amount of cameras listed under "Wanding" doesn't reach 16 (the numbering doesn't matter), restart Motive and repeat the steps for daily calibration.
- Find the calibration wand hanging on the right-hand side of the computer.
ROS client
In case the system needs to be reassembled
Mount cameras on joints and joints on clamps
Make sure that the camera is not upside-down.
Prepare 16 safety ropes to prevent accidental camera drops
- Cut to 1 m length
- Use a lighter at both ends
- prepare 8-knots as in rock climbing
Mount cameras on truss and wire them with the two switches
Mount the 16 cameras in the corners and at each 1/4 of the edges. Use the safety ropes, and wire them to the two switches as below.
Orient cameras and adjust focus
Once the setup is up-and-running, adjust the focus of each camera using a marker at 2/3 of the working distance. Use a remote desktop app and ethernet connection.
- In the corners: the bottom of FoV is parallel to the long edges, and the bottom right corner is vertical.
- At 1/4 of a short: the top of the FOV is horizontal, and the camera points toward the center.
- At 1/2 of a short edge: the bottom of the FOV is vertical, and the camera aims downward.
- At 1/4 of a long edge: the top of the FOV is horizontal, and the camera points toward the center.
- At 1/2 of a long edge: the bottom of the FOV is vertical, and the camera aims downward.
