Motion capture data manipulation and reuse via B-splines

Abstract

This paper presents an integrated set of tools to facilitate the manipulation and reuse of motion capture data. A functional representation in terms of nonuniform B-splines provides a compact and efficient description of motion sequences. A collection of B-spline curves attached to a hierarchical structure is used to represent the animation of articulated figures. A set of primitive operators acting on these curves and their application to motion editing is presented.We have successfully used these primitives to generate smooth transitions between motion sequences, motion interpolation and motion cyclification.