The new technique will always perform better than the original
one. Intuitively, the new method will perform significantly better
than the original one when a small region of a frame has
complicated motion and remaining larger parts has relatively
simpler motion. In this case, larger parts can be represented with
small number of motion vectors at top levels internal nodes. Small
region of complicated motion may be represented by deep leaf
nodes. For example, in an animation where the most of vertices
are moving the same distance in one direction and vertices in a
small region are doing a complicated movement, the original
method will put the same motion vectors in a lot of leaf nodes.
However, the new technique will put the motion vector for the
simple movement of most vertices in small number of internal
nodes. This is analogous to the concept of inheritance where the