### Summary
This reading is a survey of motion editing techniques and their applicability and difficulties.
### Problem
The basic problem of this reading is how to alter a performance once it has been captured to suit a particular goal, whether that goal is to create a different performance, make the performance more believable, reduce noise, make it fit some algorithm better, etc.
### Methods Used
This reading outlines several ways to edit motion, including:
Key reduction
Motion signal processing
Time warping/scaling/shifting
Linear filtering
Non-linear filtering
Blending/Motion Warping
### Key Ideas
In addition to the motion editing techniques given above, the reading explains several ways to represent rotations