Spatial Relationship Preserving Character Motion Adaptation

by raja on January 23, 2011

in Assignment 1

Spatial Relationship Preserving Character Motion Adaptation (assigned)

Sentence
This paper presents a new method for editing and retargeting motions that involve close interactions between body parts of single or multiple articulated characters, such as dancing, wrestling, and
sword fighting, or between characters and a restricted environment, such as getting into a car.

Problem
Representing motion in terms of joints angles and kinematic constraints (specified by the animator) necessitates randomized exploration and significant computation for collision detection and thus automatically computing valid motions becomes a problem.

Key Idea
Using an interaction mesh to represent spatial relationships between closely interacting body parts of articulated characters and objects

What the paper lets you do
A method to edit and retarget character animation that involves close interactions; updating the motion automatically maintains spatial relationships between different body components by applying a spacetime optimization to minimize deformation of the interaction meshes subject to positional, bone-length and collision constraints.

What it could be used for
More realistic animation of interacting objects/bodies
The wrestling games sometimes look very funny and un-physicsish when a smaller player does the trademark move of a bigger one; definitely can use this there.

Other materials
Project web page & video

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