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Setting up and Running a Capture Session with Vicon MX Motion Capture System - Prof. David, Study notes of Theatre

This handout provides a step-by-step guide for creating a folder, setting up and calibrating the vicon mx motion capture system up until running an actual capture session. The process includes creating a new project, setting up hardware, calibrating cameras, and capturing data.

Typology: Study notes

Pre 2010

Uploaded on 08/04/2009

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Vicon MX Motion capture system
The following is a basic outline for setting up and running a capture session. Steps are
broken down into specific areas as defined by the application interface. This Handout
only outlines the process up until running an actual capture session. If the cameras have
been moved at all a more extensive set and calibration process will need to done The Post
process will be explained in another handout.
First, create a folder on the E:/ drive for your capture. Then open ViconIQ. Browse to
find your folder.
A. Data management
B. Setup
C. Calibration
D. Capture
E. Post Process
Eclipse > New Database
A. Data management
Create new project
Create new capture day
Create new session
B. Setup (top menu)
NOTE: Tarsus must be connected. If not, Click on Modeling (top menu) then back on
Setup (top menu) and click on the double red arrows at the bottom of the screen. This
should start Tarsus. If this does not, browse to C:\Program Files\Vicon\VICONiQ 2.0\
Tarsus and find Tarsus.exe, then Click on Modeling (top menu) then back on Setup (top
menu) and click on the double red arrows at the bottom of the screen.
Hardware configuration (right menu)
Steps:
If any of the 12 cameras don’t show up
Check connections
If connections are good but a camera still does not show up
Then click NONE to release current camera list
Then pick Vicon MX and wait for camera to be reassigned
Green means camera is connected and ready
Blue camera is the temporary origin and will be the sync camera for tick
cycles
This is also were you can set the frame rate for the session (it can be
changed at any point during the session. A minimum of 60 and 120 or
higher is best for fast action)
C. Calibration (top menu)
Calibration (right menu)
Steps:
1. Pick Camera view
Shift click to select all cameras.
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Vicon MX Motion capture system

The following is a basic outline for setting up and running a capture session. Steps are broken down into specific areas as defined by the application interface. This Handout only outlines the process up until running an actual capture session. If the cameras have been moved at all a more extensive set and calibration process will need to done The Post process will be explained in another handout. First, create a folder on the E:/ drive for your capture. Then open ViconIQ. Browse to find your folder.

A. Data management

B. Setup

C. Calibration

D. Capture

E. Post Process

Eclipse > New Database A. Data management Create new project Create new capture day Create new session B. Setup (top menu) NOTE: Tarsus must be connected. If not, Click on Modeling (top menu) then back on Setup (top menu) and click on the double red arrows at the bottom of the screen. This should start Tarsus. If this does not, browse to C:\Program Files\Vicon\VICONiQ 2.0
Tarsus and find Tarsus.exe, then Click on Modeling (top menu) then back on Setup (top menu) and click on the double red arrows at the bottom of the screen. Hardware configuration (right menu) Steps: If any of the 12 cameras don’t show up Check connections If connections are good but a camera still does not show up Then click NONE to release current camera list Then pick Vicon MX and wait for camera to be reassigned Green means camera is connected and ready Blue camera is the temporary origin and will be the sync camera for tick cycles This is also were you can set the frame rate for the session (it can be changed at any point during the session. A minimum of 60 and 120 or higher is best for fast action) C. Calibration (top menu) Calibration (right menu) Steps:

  1. Pick Camera view Shift click to select all cameras.

240 mm wand Click start wand wave Move wand around volume Direct wand waver to cameras with values below 500 (1000 is best) When values are met click stop wand Wait for 2-5 minutes for calculations

  1. Position Ergo_9mm_Lframe in center of volume Select live 3D workspace Click track l-frame Then click set origin (cameras should reorient to L frame)
  2. Randomly place markers around the volume Select calibrate floor plane Record for 2-3 seconds Click stop Markers should snap to floor Clean up markers from floor
  3. Calibration health check (only needed to verify that calibration is still valid) D. Capture See marker handout sheet to set markers on actor Capture (top menu) Capture (right menu) Steps: Name Trial Pick trial type Click Start Range of motion test for actor T-pose Role hands Role Head Role arms Role trunk Left leg wave Left foot Right leg wave Right foot T-pose Click Stop Save threshold data (This only needed for first trial of first capture session) At this point you can do multiple trials by simply changing the Trial Name and Trial type if needed. It is best to have the actors start and end each session in the T-Pose. It is not required but can help the system run cleaner when doing a post process.
  • Frame rate can be changed under SETUP top menu HARDWARE CONFIG right menu