When
you position the reference box, the tracker box automatically moves to
the same location so that when you start analyzing, both boxes are
positioned over the reference point.
To position the reference box:
- Go to the frame where you want to position
the reference box.
- If the tracker you want to position does
not appear on the image, click the appropriate Tracker in the File
Browser, and enable Active.
- Position the cursor to the center of
the reference box until it changes from a cross to a multi-arrow
shape.
- Click and hold the reference box and
drag it over the pattern you want to track (in the example below,
the rider's head). The reference box is magnified to make it easier
to select a position. By default, the tracker box stays with the
reference box.