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Acknowledgement of Contributors (Alphabetically)

Alice Xu, Chae Rin Choi, Farah Attia

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FORMAT for Vicon calendar booking: [Full Name] [Cameras/No Cameras] [Zone 1/2/3/4/5/6 (include all that will be used)]

• e.g. Baffour Osei, No Cameras, Zones 1, 2, 3
• Note: This format is to ensure efficient and clear communication about use of the Vicon Space.
• Created by Alice Xu

Reference:

Please note Zone 1 is where the stairs and Vicon computer are.

To reserve time with this equipment, go to the equipment’s Google Calendar. If you do not have access to the calendar, scroll down to the calendar below and click on “Add to Google Calendar” at the bottom left corner. Otherwise, contact the Lab Manager at [email protected].

https://calendar.google.com/calendar/embed?src=c_b541e451e13650500cc983d4be6e040089732babf02fc75c118ee195cc69f184%40group.calendar.google.com&ctz=America%2FNew_York&mode=WEEK

• Instructions and calendar created/written by Chae Rin Choi

Quick Links:

Vicon Log Form

Vicon Resources

Vicon Troubleshooting

Random but IMPORTANT Vicon things to know

• Thank you Maria Santos, Paul Lee, and Daphne Barretto for your contributions to these instructions
• Computer
  • Do not download or install any software on the Vicon computer. ALL post processing must be done on your own machine.
  • This is a shared machine that takes a lot of processing power to run the Vicon system and we need to preserve it’s RAM for only that purpose.
• Objects/bodies
  • Don’t place markers on a body symmetrically or else Vicon can’t tell the body’s orientation along the symmetric axis
  • Vicon can track multiple bodies; however, you have to do one of the following first:
• Place the tracking markers in distinguishable ways to be able to differentiate the bodies being tracked or
• Use the Vicon swarm package to track multiple identical bodies
• Cameras
  • You need at least 3 cameras to triangulate a body in space but you should have more because sometimes some cameras randomly drop some of the markers they’re tracking.
  • It is a good idea to have the cameras warm up for 30 minutes because the rise in temperature will change it’s measurement precision.
• Software
  • You can mask objects with the software that you cannot physically remove from the space. Vicon will cover whatever pixels you don’t want to see
    • When masking, don’t have the object you’re tracking in the camera’s view or else you’ll mask the object you’re trying to track
  • When calibrating/creating objects, the orientation of space in the tracker software is as follows: red is for the x-axis, green is for the y-axis, blue is for the z-axis