Footprint Analysis and Motion Synthesis

In this paper, we describe a novel method to analyze captured human motion data. As described later, we analyze the sequences of footprint of the moving figure to extract different motion stages, as well as the switch frame between two adjacent stages. The displacement between left and right footprints is a time varying function. The change of motion (in direction, posture, speed etc.) can be reflected by the displacement between left and right footprints. Each motion stage is a sequence of motion data. Two adjacent motion stages can be different just in movement direction despite they are in the same movement style. In the second half of this paper, we apply footprint analysis on a short human motion clip of walking forward, and synthesis new motions of walking (running) along a path, of which the direction can be changed interactively in running time.