Motion Texture

K. Pullen
There are subtle differences between how different individuals execute the same motion. Often these differences are important, both for scientific applications such as biomechanical studies, and for artistic applications, such as dance and animation.

My research has focused on how to apply an understanding of how live humans and animals move to create more life-like computer animations. We can categorize the features often missing from computer animations as "aliveness" and "personality". By aliveness, we mean the aspects of motion that tell us we are observing a live being and not a machine or other inanimate object. By "personality" we mean the aspects of motion that are unique to a particular individual. For example, when you see a person walking from far away, often you can tell who it is just by how he or she walks. Taken together, we refer to these feature of aliveness and personality as a "motion texture". Just as a piece of cloth has a certain texture defined by its look and feel, so does an individual's way of moving. I have been working on methods for obtaining a motion texture from live data and using it to assist in the creation of an animation. For a much more thorough introduction to what I've been doing, please see the introduction of my Ph.D. thesis.

cyclic motions
non-cyclic motions   (This is the work I presented at SIGGRAPH 2002)