Hierarchical spacetime control
SIGGRAPH '94 Proceedings of the 21st annual conference on Computer graphics and interactive techniques
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
Limit cycle control and its application to the animation of balancing and walking
SIGGRAPH '96 Proceedings of the 23rd annual conference on Computer graphics and interactive techniques
Retargetting motion to new characters
Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Physically based motion transformation
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
A hierarchical approach to interactive motion editing for human-like figures
Proceedings of the 26th annual conference on Computer graphics and interactive techniques
Proceedings of the 27th annual conference on Computer graphics and interactive techniques
SIGGRAPH '88 Proceedings of the 15th annual conference on Computer graphics and interactive techniques
Motion capture-driven simulations that hit and react
Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation
Synthesis of complex dynamic character motion from simple animations
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Motion texture: a two-level statistical model for character motion synthesis
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Interactive control of avatars animated with human motion data
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Efficient synthesis of physically valid human motion
ACM SIGGRAPH 2003 Papers
IEEE Computer Graphics and Applications
Dynamic response for motion capture animation
ACM SIGGRAPH 2005 Papers
Dynamo: dynamic, data-driven character control with adjustable balance
Proceedings of the 2006 ACM SIGGRAPH symposium on Videogames
Interactive dynamic response for games
Proceedings of the 2007 ACM SIGGRAPH symposium on Video games
Proceedings of the 2007 ACM SIGGRAPH symposium on Video games
Simulating biped behaviors from human motion data
ACM SIGGRAPH 2007 papers
Simulating competitive interactions using singly captured motions
Proceedings of the 2007 ACM symposium on Virtual reality software and technology
Proceedings of the 2007 ACM symposium on Virtual reality software and technology
Psychologically Inspired Anticipation and Dynamic Response for Impacts to the Head and Upper Body
IEEE Transactions on Visualization and Computer Graphics
Animating responsive characters with dynamic constraints in near-unactuated coordinates
ACM SIGGRAPH Asia 2008 papers
ACM SIGGRAPH 2009 papers
Simulating balance recovery responses to trips based on biomechanical principles
Proceedings of the 2009 ACM SIGGRAPH/Eurographics Symposium on Computer Animation
Spatial relationship preserving character motion adaptation
ACM SIGGRAPH 2010 papers
Optimal feedback control for character animation using an abstract model
ACM SIGGRAPH 2010 papers
A reactive and protective character motion generation algorithm
International Journal of Computer Applications in Technology
Goal-directed stepping with momentum control
Proceedings of the 2010 ACM SIGGRAPH/Eurographics Symposium on Computer Animation
Human motion reconstruction from force sensors
SCA '11 Proceedings of the 2011 ACM SIGGRAPH/Eurographics Symposium on Computer Animation
Generating Responsive Life-Like Biped Characters
Proceedings of the The third workshop on Procedural Content Generation in Games
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In this paper, we propose a new method for simulating reactive motions for running or walking human figures. The goal is to generate realistic animations of how humans compensate for large external forces and maintain balance while running or walking. We simulate the reactive motions of adjusting the body configuration and altering footfall locations in response to sudden external disturbance forces on the body. With our proposed method, the user first imports captured motion data of a run or walk cycle to use as the primary motion. While executing the primary motion, an external force is applied to the body. The system automatically calculates a reactive motion for the center of mass and angular momentum around the center of mass using an enhanced version of the linear inverted pendulum model. Finally, the trajectories of the generalized coordinates that realize the precalculated trajectories of the center of mass, zero moment point, and angular momentum are obtained using constrained inverse kinematics. The advantage of our method is that it is possible to calculate reactive motions for bipeds that preserve dynamic balance during locomotion, which was difficult using previous techniques. We demonstrate our results on an application that allows a user to interactively apply external perturbations to a running or walking virtual human model. We expect this technique to be useful for human animations in interactive 3D systems such as games, virtual reality, and potentially even the control of actual biped robots.