Abstract

This paper presents a high-level parametric approach for synthesis of novel human animation sequences from short clips data. The parametric approach generates motions according to user-defined high-level motion parameters, such as speed, slope and direction, while maintaining the quality and realism of captured motions, and preserving the motion constraints. The approach allows simultaneous control over multiple motion parameters. This is also done with efficient computations. Animation sequences are synthesized by parametric blending, according to high-level parameters. The mapping between high-level parameters and low-level blending coefficients is automatically pre-computed, enabling efficient motion synthesis with high-level parametric control. This allows realistic synthesis of novel motions intuitively and without expert animation skills. Hence, the presented high-level parametric approach allows both novice and expert users/animators to define their desired motion using intuitive parameters. This improves the learning curve for novice users and productivity for expert users.

Another novel contribution is the introduction of quantitative, in addition to the qualitative, evaluation of the results which shows that synthesized animations are perceptually and quantitatively indistinguishable from captured animations. Example applications demonstrating the proposed approach are also presented.