(r2) MotionCapture < Imager

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---+Motion Capture Discussion Group Homepage

   * [[#ImportatntAnnouncements][Announcements]]
   * [[#EventSchedule][Schedule]]
   * [[#ToCapture][To Capture]]
   * [[#ToBuy][To Buy]]
   * [[#QuestionAnswer][Q&A]]
   * [[#OurNotes][Our Notes]]
   * [[#ViconManuals][Vicon Manuals]]

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#ImportatntAnnouncements
---++Announcements

   * from Kang: Wiki created, people...I will upload iQ Basics, more Q&A and other stuff after I am done...

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#EventSchedule
---++Schedule

| *Topic* | *Time* | *Location* |
| Web Tutorial IQ - Manual Editing |  Friday, June 17, 2005  |  X527 |
| Web Tutorial IQ - VST file Editing |  Friday, July 15, 2005  |  X527 |
| Web Tutorial IQ - Labeling Data |  Friday, August 12, 2005 |  X527 |

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#ToCapture
---++To Capture
   * Michiel doing cartwheels ;-)

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#ToBuy
---++To Buy
   * Mo-cap suits ... (current is a large) and maybe sleeve-less (vest)
   * Hygienic/medical tapes for direct skin attachment
   * Soft markers for capture when performing moves involving contact
   * Black duct tape
   * Velcro tape (black) ... fuzzy side

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#QuestionAnswer
---++Q&A

   1. *Q*: What dynamic calibration is for? 
      * *A*: from P21 of  Vicon System Manual <br /> Static calibration calculates the origin or centre of the capture volume and determines the orientation of the 3D Workspace. <br /> Dynamic calibration involves movement of a calibration wand throughout the whole volume and allows the system to calculate the relative positions and orientations of the cameras. It also linearises the cameras.
   1. *Q*: What to do if residuals are still too high? What should they be to begin with. what do they mean?
      * *A*: from P23 of  Vicon System Manual <br /> A residual for each camera is a measure of the accuracy of a single camera. They are larger the greater the distance of the camera from the capture volume and are measured in millimeters. It is the root mean square of the distance between two rays; the first being that from the centre of the strobe ring to the centroid of the marker and the second being the reflected ray from the marker to the camera lens. <br /> Residuals should be less than 0.1% of the distance from the camera to the centre of the capture volume. For example, our cameras are roughly 3~4 meters from the centre of the volume, the residuals should be less than 3~4mm. So we are good with a 1mm mean residual. Consistency between residual values from all cameras is also important. <br /> Residual values much higher than those given here may indicate a problem. Mathematically it means that the calibration algorithm failed to converge to a meaningful result. Extraneous reflections or flickering light from elsewhere in the capture space, or reflective material from the person performing the calibration and wand waving might be the noise sources. Try checking the live monitors for additional sources of light.
   1. *Q*: Why we are getting zero wand visibility?
      * *A*:

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#OurNotes
---++Our Own Notes

   * [[%ATTACHURL%/MotionCaptureWorkflow.ppt][MotionCaptureWorkflow.ppt]]: basic steps for mocap
   * [[%ATTACHURL%/Jun1MocapNotes.doc][Jun1MocapNotes.doc]]: mocap notes taken on June 1, 2005

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#ViconManuals
---++Vicon Manuals

   * [[%ATTACHURL%/1.IntroducingVicon.pdf][1.IntroducingVicon.pdf]]: Vicon Manual

   * [[%ATTACHURL%/2.Preparation.pdf][2.Preparation.pdf]]: Vicon Manual

   * [[%ATTACHURL%/3.EssentialsofMotionCapture.pdf][3.EssentialsofMotionCapture.pdf]]: Vicon Manual

   * [[%ATTACHURL%/4.Systemoptions.pdf][4.Systemoptions.pdf]]: Vicon Manual

   * [[%ATTACHURL%/5.AdvancedCaptureTechniques.pdf][5.AdvancedCaptureTechniques.pdf]]: Vicon Manual

   * [[%ATTACHURL%/6.Reference.pdf][6.Reference.pdf]]: Vicon Manual

   * [[%ATTACHURL%/7.DVCapture.pdf][7.DVCapture.pdf]]: Vicon Manual

   * [[%ATTACHURL%/8.EclipseManual.pdf][8.EclipseManual.pdf]]: Vicon Manual

   * [[%ATTACHURL%/iQ1.5_Glossary.pdf][iQ1.5_Glossary.pdf]]: iQ1.5 Manual

   * [[%ATTACHURL%/iQ1.5_HotKey_Layout.pdf][iQ1.5_HotKey_Layout.pdf]]: iQ1.5 Manual

   * [[%ATTACHURL%/iQ1.5_Introduction.pdf][iQ1.5_Introduction.pdf]]: iQ1.5 Manual

   * [[%ATTACHURL%/iQ1.5_Tutorial_Modelling.pdf][iQ1.5_Tutorial_Modelling.pdf]]: iQ1.5 Manual

   * [[%ATTACHURL%/iQ1.5_Tutorial_RealTime_Mode.pdf][iQ1.5_Tutorial_RealTime_Mode.pdf]]: iQ1.5 Manual

   * !ViconPeak Video Training Library: server = ftp.vicon.com; Login = training; Password = vicon
Topic revision: r2 - 2005-06-11 - kkyin