Jia-chi Wu

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We describe a framework for the automatic synthesis of biped locomotion controllers that adapt to uneven terrain at run-time. The framework consists of two components: a per-footstep end-effector path planner and a per-timestep generalized-force solver. At the start of each footstep, the planner performs short-term planning in the space of end-effector(More)
In this paper we describe a physics-based method for synthesis of bird flight animations. Our method computes a realistic set of wingbeats that enables a bird to follow the specified trajectory. We model the bird as an articulated skeleton with elastically deformable feathers. The bird motion is created by applying joint torques and aerodynamic forces over(More)
In this paper, an approach that animates facial expressions through speech analysis is presented. An individualized 3D head model is first generated by modifying a generic head model, where a set of MPEG-4 Facial Definition Parameters (FDPs) has been pre-defined. To animate realistic facial expressions of the 3D head model, key frames of facial expressions(More)
This is to certify that I have examined this copy of a doctoral dissertation by Jia-chi Wu and have found that it is complete and satisfactory in all respects, and that any and all revisions required by the final examining committee have been made. Date: In presenting this dissertation in partial fulfillment of the requirements for the doctoral degree at(More)
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