Publication

Using an Intermediate Skeleton and Inverse Kinematics for Motion Retargeting

Daniel Thalmann, Ronan Boulic, Jean-Sébastien Monzani
2000
Journal Articles

Abstract

In this paper, we present a new method for solving the Motion Retargeting Problem, by using an intermediate skeleton. This allows us to convert movements between hierarchically and geometrically different characters. An Inverse Kinematics engine is then used to enforce Cartesian constraints while staying as close as possible to the captured motion.

Official source

https://infoscience.epfl.ch/entities/publication/99173625-f775-486d-b38f-e34a8299c6fd

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Daniel Thalmann, Ronan Boulic, Jean-Sébastien Monzani
2000
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/99173625-f775-486d-b38f-e34a8299c6fd

About this result

Related concepts (32)

Inverse kinematics

In computer animation and robotics, inverse kinematics is the mathematical process of calculating the variable joint parameters needed to place the end of a kinematic chain, such as a robot manipulator or animation character's skeleton, in a given position and orientation relative to the start of the chain. Given joint parameters, the position and orientation of the chain's end, e.g. the hand of the character or robot, can typically be calculated directly using multiple applications of trigonometric formulas, a process known as forward kinematics.

Kinematics

Kinematics is a subfield of physics, developed in classical mechanics, that describes the motion of points, bodies (objects), and systems of bodies (groups of objects) without considering the forces that cause them to move. Kinematics, as a field of study, is often referred to as the "geometry of motion" and is occasionally seen as a branch of mathematics. A kinematics problem begins by describing the geometry of the system and declaring the initial conditions of any known values of position, velocity and/or acceleration of points within the system.

Kinematic chain

In mechanical engineering, a kinematic chain is an assembly of rigid bodies connected by joints to provide constrained motion that is the mathematical model for a mechanical system. As the word chain suggests, the rigid bodies, or links, are constrained by their connections to other links. An example is the simple open chain formed by links connected in series, like the usual chain, which is the kinematic model for a typical robot manipulator. Mathematical models of the connections, or joints, between two links are termed kinematic pairs.

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Using an Intermediate Skeleton and Inverse Kinematics for Motion Retargeting

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