- Start with video footage
- B - Move start of work area (time line)
- Right click bar - Trim composition to work area = Trims composition to just that area of the clip.
- Double click footage....
- Window > Tracker Controls > Stabilize motion.
- Click inner square (click and drag) = Track Area, Outer square = Search Area - the larger it is the more it will help find tracking area if shaky, but the larger it is, the longer it can take to work/render and the more inaccurate it can be.
- So make as small as possible but it will still find the track point.
- The tracker needs to be at a high contrast point (DISTINCT) so that it knows what it is following.
- Space bar = drag composition.
- If there is any rotation, then click the rotation box to also track it.
- Once both track points are set up, begin to analyse (click analyse forward button).
- Click apply, image should now be stable, but side effect is black bars may appear at the side. The simple solution for this is to scale the footage up, hit S.
To remove something from the footage:
This is a useful technique to cover up things that others do not want you to have in your video or pictures such as advertisement signs.
- Add new solid.
- Use colour picker, choose colour you want to use to block out what ever you are blocking.
- Double click movie
- This time click track motion instead of stabilize.
- Track type: Perspective corner pin.
- Track area does not have to be in the same place as the track point, but make sure on the same plane! The Track area moves relative to the track point.
- Now analyse.
- Do not apply this to footage, but to the solid layer.
- Click edit target, select solid layer, click apply.
- Should now cover sign with same colour.
To create your own sign:
To replace the original..
- Layer > Pre-compose (leave all attributes).
- Alt + double click on solid composition to reveal layers inside.
- Add text
- Probably need to add fast blur so looks more real (matches rest of image) adding a glow might also help.

To follow
motion track:
- Choose track point.
- Analyse forward.
- Layer > New > Null object
- Go back to layer, click edit target, choose null target, ok.
- Make new white solid, make it comp size.
- Pen tool to cut out shape from white solid.
- Insert text (speech bubble).
- Hold shift select both layers, parent with null object.
- You can still move layers around but it won't effect the parenting.
- This is only one use of the motion tracking technique.
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