User Guide > Fine-tuning the results > 
Recomputing parameters
 
 
 

Once you have edited a camera parameter, use the recompute function to recalculate the effects of editing on the other parameters. To recompute the parameters:

  1. Do one of the following:
  2. Select the parameters to recompute by checking the associated option as appropriate in the Recompute parameters window.
  3. After editing a curve, MatchMover selects automatically which curves should be recomputed based on the modifications made. Check or clear the appropriate toggle box to set the Parameters to be recomputed. Red options indicate the parameter is already edited. It also suggests parameters for recomputation and checks them automatically.

  4. Select a time frame in the Time parameters text fields or drop-down menu. Choose from Full File, Time Range, or User.
  5. Press the Recompute button.
    NoteWhen recomputing camera parameters in the Graph Editor, the items Distortion and Focal Length in the Recompute parameters box are by default disabled to keep the focal length and the distortion constant.

    MatchMover re-estimates the specified camera parameters from the 3D points, the 2D tracks and the modified camera parameters without changing the 3D points. For example, with a variable zoom, it is common for the system to produce a camera path that is jagged along the depth axis. MatchMover compensates for slight errors along this axis by adjusting the focal length.

    To avoid this, you can first filter the focal length then re-compute the rotation and translation.

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