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- Brett Allen, Brian Curless, Zoran Popovic
- ACM Trans. Graph.
- 2003

We develop a novel method for fitting high-resolution template meshes to detailed human body range scans with sparse 3D markers. We formulate an optimization problem in which the degrees of freedom are an affine transformation at each template vertex. The objective function is a weighted combination of three measures: proximity of transformed vertices to… (More)

- Adrien Treuille, Seth Cooper, Zoran Popovic
- ACM Trans. Graph.
- 2006

We present a real-time crowd model based on continuum dynamics. In our model, a dynamic potential field simultaneously integrates global navigation with moving obstacles such as other people, efficiently solving for the motion of large crowds without the need for explicit collision avoidance. Simulations created with our system run at interactive rates,… (More)

- Keith Grochow, Steven L. Martin, Aaron Hertzmann, Zoran Popovic
- ACM Trans. Graph.
- 2004

This paper presents an inverse kinematics system based on a learned model of human poses. Given a set of constraints, our system can produce the most likely pose satisfying those constraints, in real-time. Training the model on different input data leads to different styles of IK. The model is represented as a probability distribution over the space of all… (More)

- Zoran Popovic, Andrew P. Witkin
- SIGGRAPH
- 1999

We introduce a novel algorithm for transforming character animation sequences that preserves essential physical properties of the motion. By using the spacetime constraints dynamics formulation our algorithm maintains realism of the original motion sequence without sacrificing full user control of the editing process. In contrast to most physically based… (More)

- Andrew P. Witkin, Zoran Popovic
- SIGGRAPH
- 1995

We describe a simple technique for editing captured or keyframed animation based on warping of the motion parameter curves. The animator interactively defines a set of keyframe-like constraints which are used to derive a smooth deformation that preserves the fine structure of the original motion. Motion clips are combined by overlapping and blending of the… (More)

- Brett Allen, Brian Curless, Zoran Popovic
- ACM Trans. Graph.
- 2002

This paper presents an example-based method for calculating skeleton-driven body deformations. Our example data consists of range scans of a human body in a variety of poses. Using markers captured during range scanning, we construct a kinematic skeleton and identify the pose of each scan. We then construct a mutually consistent parameterization of all the… (More)

- C. Karen Liu, Aaron Hertzmann, Zoran Popovic
- ACM Trans. Graph.
- 2005

This paper presents a novel physics-based representation of realistic character motion. The dynamical model incorporates several factors of locomotion derived from the biomechanical literature, including relative preferences for using some muscles more than others. elastic mechanisms at joints due to the mechanical properties of tendons, ligaments, and… (More)

- Seth Cooper, Firas Khatib, +7 authors Foldit players
- Nature
- 2010

People exert large amounts of problem-solving effort playing computer games. Simple image- and text-recognition tasks have been successfully 'crowd-sourced' through games, but it is not clear if more complex scientific problems can be solved with human-directed computing. Protein structure prediction is one such problem: locating the biologically relevant… (More)

- Andrew Leaver-Fay, Michael Tyka, +29 authors Philip Bradley
- Methods in enzymology
- 2011

We have recently completed a full re-architecturing of the ROSETTA molecular modeling program, generalizing and expanding its existing functionality. The new architecture enables the rapid prototyping of novel protocols by providing easy-to-use interfaces to powerful tools for molecular modeling. The source code of this rearchitecturing has been released as… (More)

- Steve Capell, Seth Green, Brian Curless, Tom Duchamp, Zoran Popovic
- SIGGRAPH
- 2002

This paper presents a framework for the skeleton-driven animation of elastically deformable characters. A character is embedded in a coarse volumetric control lattice, which provides the structure needed to apply the finite element method. To incorporate skeletal controls, we introduce line constraints along the bones of simple skeletons. The bones are made… (More)