Motion Abstraction and Mapping with Spatial Constraints

A new technique is introduced to abstract and edit motion capture data with spatial constraints. Spatial proximities of end-effectors with tagged objects during zero-crossings in acceleration space are used to isolate significant events and abstract constraints from an agent's action. The abstracted data is edited and applied to another agent of a different anthropometric size and a similar action is executed while maintaining the constraints. This technique is specifically useful for actions involving interactions of a human agent with itself and other objects.

[1]  Norman I. Badler,et al.  Inverse kinematics positioning using nonlinear programming for highly articulated figures , 1994, TOGS.

[2]  Zoran Popovic,et al.  Motion warping , 1995, SIGGRAPH.

[3]  Michael Gleicher,et al.  Retargetting motion to new characters , 1998, SIGGRAPH.

[4]  Sudhanshu Kumar Semwal,et al.  Mapping Algorithms for Real-Time Control of an Avatar Using Eight Sensors , 1998, Presence.

[5]  Dinesh Manocha,et al.  V-COLLIDE: accelerated collision detection for VRML , 1997, VRML '97.

[6]  Norman I. Badler,et al.  Simulating humans: computer graphics animation and control , 1993 .

[7]  Michael Gleicher,et al.  Motion editing with spacetime constraints , 1997, SI3D.

[8]  Norman I. Badler,et al.  Temporal scene analysis: conceptual descriptions of object movements. , 1975 .

[9]  S. Sathiya Keerthi,et al.  A fast procedure for computing the distance between complex objects in three-dimensional space , 1988, IEEE J. Robotics Autom..

[10]  Norman I. Badler,et al.  Real-Time Control of a Virtual Human Using Minimal Sensors , 1993, Presence: Teleoperators & Virtual Environments.

[11]  Michael F. Cohen,et al.  Interactive spacetime control for animation , 1992, SIGGRAPH.

[12]  Josh Bers.  A Body Model Server for Human Motion Capture and Representation , 1996, Presence: Teleoperators & Virtual Environments.

[13]  Michael Gleicher,et al.  Constraint-based motion adaptation , 1998, Comput. Animat. Virtual Worlds.

[14]  Sonu Chopra,et al.  Where To Look? Automating Some Visual Attending Behaviors of Human Characters , 1998 .

[15]  Lance Williams,et al.  Motion signal processing , 1995, SIGGRAPH.

[16]  Kenji Amaya,et al.  Emotion from Motion , 1996, Graphics Interface.

[17]  Norman I. Badler,et al.  Posture interpolation with collision avoidance , 1994, Proceedings of Computer Animation '94.

[18]  Michael F. Cohen,et al.  Efficient generation of motion transitions using spacetime constraints , 1996, SIGGRAPH.

[19]  Daniel Thalmann,et al.  A real time anatomical converter for human motion capture , 1996 .

[20]  Sudhanshu Kumar Semwal,et al.  Closed form and geometric algorithms for real-time control of an avatar , 1996, Proceedings of the IEEE 1996 Virtual Reality Annual International Symposium.

[21]  Vishvjit S. Nalwa,et al.  A guided tour of computer vision , 1993 .

[22]  Ken-ichi Anjyo,et al.  Fourier principles for emotion-based human figure animation , 1995, SIGGRAPH.