David Brown

Ph.D. Student

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Stepping in Human Motion

Center of mass trajectories for each step from one of our recordings

Center of mass trajectories for each step from one of our recordings.

Abstract

Stepping is the basis of a large portion of human motion. Everything from locomotion to simply having a conversation with someone usually involves some stepping. As such, there is a large body of work examining stepping in animation and robotics. However, existing research has focused on stepping in the context of locomotion and/or fall prevention. These are certainly important aspects of animation and robot control, but they only cover a small portion of the situations in which humans perform stepping. In this report we will look at how and when humans step in different situations, examine some previous work involving stepping, and introduce a simple system for generating potential step locations given a character's root trajectory.

Report

Project report

Images

Straight line generated steps

The black line is the desired trajectory, the red circles are 1 second intervals on the trajectory, the blue line is generated trajectory and the blue circles are the generated step positions.

Spiral generated steps

The black line is the desired trajectory, the red circles are 1 second intervals on the trajectory, the blue line is generated trajectory and the blue circles are the generated step positions.

long trajectory generated steps

The black line is the desired trajectory, the red circles are 1 second intervals on the trajectory, the blue line is generated trajectory and the blue circles are the generated step positions.