Week 7: Tracking

Tracking=following 1 thing in your video with a separate element.

Uses:
-Stabilizing
-Matchmoving: change the view out the window, to match a moving shot
-Tracking: stick something to someone.
-Girls gone wild (or Barbie)
-Big blur spot on COPS
-Horns, fire on hair, wings, clown nose
-Arrows "no smoking campaign"
-or use for rotoscoping by tracking a matte
-info graphics: pointing out areas of the frame that are moving, putting stats to them: stranger than fiction

Import Ladybeach footage
make new comp
Layer/New/Adjustment Layer
Draw a round mask on this Adj Layer
Apply Fast blur 7

Windows/Tracker Controls (with the adjustmt layer selected!)

-Set Motion Source to "Ladybeach"
-Summons the Layer window
-Keep LadyBeach selected.
-Click the Track Motion button
-brings up a TrackerBox
-3 parts to the trackerbox
1-Target (crosshair)
2-Pattern (innerbox)
3-Search Area (outerbox)
Chose a frame where the pattern was clearest.
Not necessarily the 1st frame.

Set the Trackerbox to her head by dragging between the target and the inner box.
-This drags the entire trackerbox.
-Set the pattern to the size of her head (inner box)
-Set the Target to a corner of where her head and hat meet (remember that Targets love corners)
-Click the play button in the Analyze area.
-Watch carefully for F-ups
-Click play button again to Stop the analyze. Reset the box and target as needed.
-Hit U with my video layer selected, to show all my keyfr, go to the first of those keyfr
-Analyze backwards by clicking the "Backwards play" looking button in the Analyze section.
-Select your 1st layer, hit Apply.
-Creates position keyfr on your layer
-Select all pos keyfr by clicking the word "Position." Make sure your time slider is parked on 1 of those keyframes.
-Use Arrow keys to move her blurry dot over.

To stabilize, select your footage, click Stabilize in the Motion Tracker window.
-for more than 1 tracker point, use position and rotation or scale.
-once it's done analyzing, hit "Apply"

Homework:
Videotape something or someone you can accessorize with Motion Tracking
-Footage
-Accessories
-can be hand-drawn or photos: 360 if your footage features a turning person or object
Bonus points if you use selective color keying for this.
In class we'll assemble the footage and photos, track and work with 3D layers to get the most out of this project.