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Other publications by Jean-Christophe Nebel
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J.-C. Nebel
17th Eurographics UK Conference'99
1999
Honourable mention at the best paper award
[PDF]
Abstract
Cited by 11
(
Google Scholar: 11,
ISI Web of Knowledge: 1
& SCOPUS: /
):
Keyframing is a popular method for animating articulated figures because it allows
artistic expressiveness by providing control to the animator. The animator defines a movement
by providing a set of poses. The motion is then obtained by simply interpolating
between these keyframes, typically with cubic splines.
The drawback of this process is that it requires significant effort from the animator.
Defining a movement often requires a high level of detail to ensure that the interpolation
curves induce the desired motion. In particular, the animator has to focus on avoiding
collisions between the limbs of his or her articulated figure.
The paper describes a new interpolation method producing autocollision-free paths. A
first interpolation is computed using any classical inbetweening method. Autocollisions
are then identified and corrected if necessary. At some collision times, autocollision-free
sub-keyframes are automatically generated using geometric properties. They are then used
for obtaining an autocollision-free interpolation.
Experimental results using a human model show that the animator can reduce the
level of detail needed for describing a movement and still get realistic results at interactive
speeds.
2011