The BCC Motion Key ﬁlter allows you to isolate and remove a moving
foreground object based on motion estimation. For example, you have a static
shot of some buildings and a car passes by on the street in front of the
buildings. You could use this ﬁlter to remove the car and replace it with the
The built in Motion Tracker allows for greater control over which areas of the
image the ﬁlter should affect.