Troubleshooting

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Error Messages
Input directory has no mp4 or avi files.
Videos not formatted properly
Only __ videos found.
Videos not the same length.
Unsupported video codec detected.
Unable to load calibration.
Required camera parameter groups not present.
Qualisys calibration has inconsistent FOV
Data not loaded.
Camera extrinsics optimization step 3 failed.
Unable to construct a continuous volume from overlapping chessboard frames.
Track people not complete
Abnormally high tracking errors
Invalid video.
Visible Issues
Coordinate system is out of place in one camera view.
Coordinate system is in different positions and/or orientations in all camera views.
Coordinate system is in an incorrect but consistent position and/or orientation in all camera views
Skeleton is consistently outside the body
Skeleton is momentarily incorrect
Skeleton is incomplete.
Skeleton is completely missing.
Skeleton is jittery.
Other Issues
Calibration files not visible in file browser.
Theia3D freezes when attempting to open the application
Theia3D crashes when attempting to process a calibration or movement trial.
Abnormally high tracking errors
Calibration files not visible in file browser.
Camera extrinsics optimization step 3 failed.
Coordinate system is in an incorrect but consistent position and/or orientation in all camera views
Coordinate system is in different positions and/or orientations in all camera views.
Coordinate system is out of place in one camera view.
Data not loaded.
Input directory has no mp4 or avi files.
Invalid video.
Only __ videos found.
Qualisys calibration has inconsistent FOV
Required camera parameter groups not present.
Skeleton is completely missing.
Skeleton is consistently outside the body
Skeleton is incomplete.
Skeleton is jittery.
Skeleton is momentarily incorrect
Theia3D crashes when attempting to process a calibration or movement trial.
Theia3D freezes when attempting to open the application
Track people not complete
Unable to construct a continuous volume from overlapping chessboard frames.
Unable to load calibration.
Unsupported video codec detected.
Videos not formatted properly
Videos not the same length.
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1. Error Messages
2. Visible Issues
3. Other Issues
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Required camera parameter groups not present.

_images/error_parametergroups.png

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Explanation

This error message arises when loading a calibration file. It indicates that the selected calibration file does not contain the required calibration parameters to calibrate the camera system of the loaded videos. The calibration file may be missing intrinsic parameters, extrinsic parameters, or a combination of both, which prevent it from calibrating the camera system for the video data.P

Possible Solutions

  1. Check that the calibration file is an extrinsic calibration file.The selected calibration file may be a lens intrinsic calibration file, rather than an extrinsic calibration file. Confirm that you selected the correct calibration file, which was either saved after processing a chessboard or object calibration in Theia3D, or was generated by third party software such as Qualisys Track Manager or Vicon Nexus following wand calibration.
  2. Check that the calibration file has not been modified.The selected calibration file may have been modified, and some calibration parameters may have been deleted. If parts of the calibration file have been modified or deleted, you may need to replace it with a backup of the original calibration file (if generated from third party software), or generate a new calibration file by reprocessing the chessboard or object calibration trial in Theia3D.