Straightening polygonal arcs and convexifying polygonal cycles
FOCS '00 Proceedings of the 41st Annual Symposium on Foundations of Computer Science
Probabilistic Roadmaps for Path Planning in High-Dimensional Configuration Spaces
Probabilistic Roadmaps for Path Planning in High-Dimensional Configuration Spaces
An energy-driven approach to linkage unfolding
SCG '04 Proceedings of the twentieth annual symposium on Computational geometry
Synthesizing animations of human manipulation tasks
ACM SIGGRAPH 2004 Papers
Precomputing avatar behavior from human motion data
SCA '04 Proceedings of the 2004 ACM SIGGRAPH/Eurographics symposium on Computer animation
Composition of complex optimal multi-character motions
Proceedings of the 2006 ACM SIGGRAPH/Eurographics symposium on Computer animation
Near-optimal character animation with continuous control
ACM SIGGRAPH 2007 papers
Simulating competitive interactions using singly captured motions
Proceedings of the 2007 ACM symposium on Virtual reality software and technology
Simulating interactions of avatars in high dimensional state space
Proceedings of the 2008 symposium on Interactive 3D graphics and games
Geometric Folding Algorithms: Linkages, Origami, Polyhedra
Geometric Folding Algorithms: Linkages, Origami, Polyhedra
Indexing and Retrieving Motions of Characters in Close Contact
IEEE Transactions on Visualization and Computer Graphics
Discrete & Computational Geometry
Spatial relationship preserving character motion adaptation
ACM SIGGRAPH 2010 papers
A finite state machine based on topology coordinates for wrestling games
Computer Animation and Virtual Worlds
Simulating Multiple Character Interactions with Collaborative and Adversarial Goals
IEEE Transactions on Visualization and Computer Graphics
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In this paper, we show results of controlling a 3D articulated human body model by using a repulsive energy function. The idea is based on the energy-based unfolding and interpolation, which are guaranteed to produce intersection-free movements for closed 2D linkages. Here, we apply those approaches for articulated characters in 3D space. We present the results of two experiments. In the initial experiment, starting from a posture that the body limbs are tangled with each other, the body is controlled to unfold tangles and straighten the limbs by moving the body in the gradient direction of an energy function based on the distance between two arbitrary linkages. In the second experiment, two different postures of limbs being tangled are interpolated by guiding the body using the energy function. We show that intersection free movements can be synthesized even when starting from complex postures that the limbs are intertwined with each other. At the end of the paper, we discuss about the limitations of the method and future possibilities of this approach.