Chair for Computer Aided Medical Procedures & Augmented Reality
Lehrstuhl für Informatikanwendungen in der Medizin & Augmented Reality

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Convenience methods for multi-marker tracking


  • Read source code
  • Include "Marker Directory" in "MarkerConfig" file
  • Put Marker-Bundle in its own thread
    • New thread method
    • Queue for input images
    • Start marker bundle when enough data is gathered (parameter), e.g. new marker visisble in at least two images, at least two markers visible
  • Improve "Find markers"
    • sometimes wrong marker ids are detected
    • sometimes a single marker is detected with multiple possible marker ids (only one of them is right)
  • Store Marker calibrations as Pose instead of 3D Points, when reading calibration convert to 3D Point list for world map
  • Default size for markers in "MarkerConfig"
  • Input Image should be undistored, set "Distortion Parameter" for marker bundle to 0 and remove "Distortion" input edge
  • Check that input image is gray scale, else throw UbitrackException?
  • Disable marker bundle console output through parameter
  • Advanced: Is it useful to refine marker poses during tracking using pose refinement (look at standard markertracker)? Only refinement of the 2D corners is needed
  • Advanced: Improve marker bundle, what needs to be done to reuse already calibrated marker poses in the bundle adjustment network? Are covariances available for the calculated marker poses?

Weekly Plan

Day Hours worked What has been done

Edit | Attach | Refresh | Diffs | More | Revision r1.2 - 09 Oct 2012 - 11:00 - FriederPankratz