The Tracker UI contains the following parameters:
(a) Tracker browser (b) Add Analyzer (c) Display controls (d) Analyze controls (e) Reference box controls (f) Tracker box controls (g) X and Y shift controls
| Use: | To: |
|---|---|
| Tracker Browser | View a list of all tracker analyzers you add to the tracker. Right-clicking any tracker analyzer to display a list of options to delete, rename or select all tracker analyzers. |
| Add | Add tracker analyzers to the tracker. |
| Display Preview | View the most recent match found for the tracker. Clicking it again disables the control. |
| Display Zoom | Determine how much the reference area appears magnified in the reference box by setting the Zoom factor. |
| Display Color | Change the color of the tracker and reference boxes by clicking the color pot, then selecting a new color from the color picker. |
| Analyze Forward | Run the analysis forward. Click again to turn tracking on and off. |
| Analyze Backward | Run the analysis backward. Click again to turn tracking on and off. |
| Analyze Forward one frame | Advance the analysis forward by one frame. |
| Analyze Backward one frame | Advance the analysis backward by one frame. |
| Fixed Reference | Leave the contents of the reference box unchanged during tracking. This is faster than Roaming. It is also less flexible since it assumes little or no change to the reference feature. |
| Roaming reference | Update the contents of the reference box at each frame. Use this option when the reference feature undergoes significant changes in luma or shape cues during the footage. For example, if the reference feature undergoes lighting changes, choosing Roaming increases the chances of finding a match at each frame. |
| Tolerance | Set how much tolerance for error there is in locating a match for the reference box. A keyframe is only set for the frame if a match is found. If Tolerance is set to 100%, a match is always found, regardless of how wrong it may be. If Tolerance is set to 0%, a keyframe is only set for the frame if an exact match for the reference box is found. |
| Snap | Update the contents of the reference box at the current frame. |
| Reference | Change the size and position of the reference box. |
| Tracker B | Change the size and position of the tracker box. |
| Shift | Change or reset the shift values. |
