Animating responsive characters with dynamic constraints in near-unactuated coordinates Export

@article{citeulike:4369527, abstract = {This paper presents a technique to enhance a kinematically controlled virtual character with a generic class of dynamic responses to small perturbations. Given an input motion sequence, our technique can synthesize reactive motion to arbitrary external forces with a specific style customized to the input motion. Our method re-parameterizes the motion degrees of freedom based on joint actuations in the input motion. By only enforcing the equations of motion in the less actuated coordinates, our approach can create physically responsive motion based on kinematic pose control without explicitly computing the joint actuations. We demonstrate the simplicity and robustness of our technique by showing a variety of examples generated with the same set of parameters. Our formulation focuses on the type of perturbations that significantly disrupt the upper body poses and dynamics, but have limited effect on the whole-body balance state.}, address = {New York, NY, USA}, author = {Ye, Yuting and Liu, Karen C.}, citeulike-article-id = {4369527}, citeulike-linkout-0 = {http://portal.acm.org/citation.cfm?id=1409060.1409065}, citeulike-linkout-1 = {http://dx.doi.org/10.1145/1409060.1409065}, doi = {10.1145/1409060.1409065}, issn = {0730-0301}, journal = {ACM Trans. Graph.}, keywords = {algorithm, animation, character\_animation, data\_driven, human, mocap, physics}, number = {5}, pages = {1--5}, posted-at = {2009-04-20 18:37:14}, priority = {2}, publisher = {ACM}, title = {Animating responsive characters with dynamic constraints in near-unactuated coordinates}, url = {http://dx.doi.org/10.1145/1409060.1409065}, volume = {27}, year = {2008} }

TY - JOUR ID - citeulike:4369527 L3 - citeulike-article-id:4369527 N2 - This paper presents a technique to enhance a kinematically controlled virtual character with a generic class of dynamic responses to small perturbations. Given an input motion sequence, our technique can synthesize reactive motion to arbitrary external forces with a specific style customized to the input motion. Our method re-parameterizes the motion degrees of freedom based on joint actuations in the input motion. By only enforcing the equations of motion in the less actuated coordinates, our approach can create physically responsive motion based on kinematic pose control without explicitly computing the joint actuations. We demonstrate the simplicity and robustness of our technique by showing a variety of examples generated with the same set of parameters. Our formulation focuses on the type of perturbations that significantly disrupt the upper body poses and dynamics, but have limited effect on the whole-body balance state. IS - 5 JF - ACM Trans. Graph. SN - 0730-0301 AD - New York, NY, USA EP - 5 TI - Animating responsive characters with dynamic constraints in near-unactuated coordinates PB - ACM VL - 27 SP - 1 KW - algorithm KW - animation KW - character_animation KW - data_driven KW - human KW - mocap KW - physics AU - Ye, Yuting AU - Liu, Karen PY - 2008/// UR - http://dx.doi.org/10.1145/1409060.1409065 ER -