Graphics Reference
In-Depth Information
Making Footage Work for You
How often have you seen a commercial where the graphics appear glued to a
specific moving visual feature or watched a movie where a floating translucent
high-tech screen has amazing footage playing on what you know can't really
exist. Perhaps you've seen really old footage that's been restored and is now
steady. Effects such as these are achieved through the application of After
Effects' Motion Tracking.
Motion Tracking and Stabilization
Of all the technologies programmed into After Effects, I find Motion Tracking
and Stabilization one of the most remarkable. The idea that the computer can
identify a visual feature and follow that feature as it progresses from one frame
to the next is pretty blasé these days, but only a few years ago the technology
was the sole domain of the rarified ultra-high-end visual effects compositing
supercomputer. Then again, today's ordinary desktop computer clearly lays
waste to yesterday's supercomputer - and the high-end motion tracking
software has become an everyday feature of many graphics and editing
programs.
Motion Tracking and Stabilization for After Effects operates in four modes:
A
Single-Point Tracking
B
Multi-Point Tracking
C
Parallel Corner Pin
D
Perspective Corner Pin.
