Inverse kinematics positioning using nonlinear programming for highly articulated figures
ACM Transactions on Graphics (TOG)
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
Computer puppetry: An importance-based approach
ACM Transactions on Graphics (TOG)
Motion capture-driven simulations that hit and react
Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation
On-line locomotion generation based on motion blending
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
Proceedings of the 29th annual conference on Computer graphics and interactive techniques
Mapping optical motion capture data to skeletal motion using a physical model
Proceedings of the 2003 ACM SIGGRAPH/Eurographics symposium on Computer animation
Efficient synthesis of physically valid human motion
ACM SIGGRAPH 2003 Papers
Perceptual metrics for character animation: sensitivity to errors in ballistic motion
ACM SIGGRAPH 2003 Papers
Automated extraction and parameterization of motions in large data sets
ACM SIGGRAPH 2004 Papers
Momentum-based parameterization of dynamic character motion
SCA '04 Proceedings of the 2004 ACM SIGGRAPH/Eurographics symposium on Computer animation
A physically-based motion retargeting filter
ACM Transactions on Graphics (TOG)
Skeletal Parameter Estimation from Optical Motion Capture Data
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 2 - Volume 02
Dynamic response for motion capture animation
ACM SIGGRAPH 2005 Papers
Learning physics-based motion style with nonlinear inverse optimization
ACM SIGGRAPH 2005 Papers
A data-driven approach to quantifying natural human motion
ACM SIGGRAPH 2005 Papers
Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation
Analyzing the physical correctness of interpolated human motion
Proceedings of the 2005 ACM SIGGRAPH/Eurographics symposium on Computer animation
Knowing when to put your foot down
I3D '06 Proceedings of the 2006 symposium on Interactive 3D graphics and games
Animating Human Locomotion with Inverse Dynamics
IEEE Computer Graphics and Applications
| Hi-index | 0.00 |
Retargeting and interpolation methods may introduce physical inaccuracies in virtual human animation. This paper presents a method for evaluating the dynamical correctness of retargeted and interpolated motions. We determine resulting forces and torques at joints, with special attention to the ground reaction forces. With this intention, we propose an automatic creation of the biomechanical model of the character upgraded with the masses and inertias of the limbs and the motion mapping on this model. Then using support phase recognition, we compute resulting forces and torques by an inverse dynamics method.We evaluate how the retargeting and the interpolation methods change the physics of the motions by using the results of our analysis on artificial and real motions and using literature and experimental data from force plates. Our evaluation relies on the study of several retargeting and interpolation parameters such as the global size of the character, the relative ratios of limbs, the structure of the model, the length of step, the motion style and the character velocity.