Abstract
Recently, motion capture is widely used in the human animation. But it is still difficult to create new-style animations from the existing motion capture data. In this paper, we propose a novel technique to create the style animations from an existing motion sequence. Firstly, we use linear time-invariant system (LTI) to derive an explicit mapping between the high-dimensional motion capture data and the low-dimensional state variables. Secondly, new style animations are created within the state space. Only a few important keyframes need be modified through adjusting the low-dimensional style variables. The remaining frames of the original motion can be generated automatically. Finally, we design an effective algorithm to calculate the model parameters. Experimental results show that the generated style animations are natural and smooth.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Li, Y., Wang, T., Shum, H.-Y.: Motion Texture: A Two-Level Statistical Model for Character Motion Synthesis. ACM Transactions on Graphics (Proc. SIGGRAPH 2002) 21(3), 465–472 (2002)
Gleicher, M.: Comparing constraint-based motion editing methods. Graph Models 63, 107–134 (2001)
Witkin, A., Popovic, Z.: Motion Warping. Computer Graphics (SIGGRAPH 1995) 29(4), 105–108 (1995)
Witkin, A., Kass, M.: Spacetime constraints. Computer Graphics(SIGGRAPH 1988) 22, 159–168 (1988)
Gleicher, M.: Retargetting motion to new characters. SIGGRAPH 1998 32, 33–42 (1998)
Gleicher, M.: Motion path editing. In: Proceedings of the 2001 ACM symposium on interactive 3D graphics, Research Triangle Park, NC, pp. 195–202 (March 2001)
Kovar, L., Schreiner, J., Gleicher, M.: Footstake cleanup for motion capture editing. In: Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation, pp. 97–104 (2002)
Lee, J., Shin, S.Y.: A hierarchical approach to interactive motion editing for human-like figures. In: SIGGRAPH 1999, pp. 39–48 (1999)
Bruderlin, A., Williams, L.: Motion signal processing. In: Proceedings of ACM SIGGRAPH 1995, pp. 97–104 (1995)
Unuma, M., Anjyo, K., Takeuchi, R.: Fourier principles for emotion-based human figure animation. In: Proceedings of ACM SIGGRAPH 1995, pp. 91–96 (1995)
Pullen, K., Bregler, C.: Motion Capture Assisted Animation: Texturing and Synthesis. In: Proc SIGGRAPH 2002, pp. 501–508 (2002)
Jolliffe, I.T.: Principal Component Analysis. Springer series in statistics. Springer, Heidelberg (1986)
Glardon, P., Boulic, R., Thalmann, D.: PCA-based Walking Engine using Motion Capture Data. In: Proceeding of Computer Graphics International (CGI), Crete, Greece, pp. 292–298 (2004)
Glardon, P., Boulic, R., Thalmann, D.: A Coherent Locomotion Engine Extrapolating Beyond Experimental Data. In: Proceedings of Computer Animation and Social Agent (CASA), Geneva, Switzerland, pp. 73–84 (July 2004)
Urtasun, R., Glardon, P., Boulic, R., Thalmann, D., Fua, P.: Style-Based Motion Synthesis. Computer Graphics Forum 23(4), 799–812 (2004)
Müller, W., Alexa, M.: Representing animations by principal components. In: Gross, M., Hopgood, F.R.A. (eds.) Computer Graphics Forum (Eurographics 2000), vol. 19(3), pp. 411–426 (2000)
Lim, I., Thalmann, D.: Construction of animation models out of captured data. In: Proc. IEEE Conf. on Multimedia and Expo, ICME 2002, vol. 1, pp. 829–832 (2002)
Tanco, L.M., Hilton, A.: Realistic synthesis of novel human movements from a database of motion capture examples. In: IEEE Workshop on Human Motion, pp. 137–142 (2000)
Brand, M., Hertzmann, A.: Style machines. In: ACM SIGGRAPH 2000, pp. 183–192 (2000)
Soatto, S., Doretto, G., Wu, Y.N.: Dynamic textures. In: IEEE International Conference on Computer Vision, pp. 439–446 (2001)
Ljung, L.: System Identification. Theory for the User, 2nd edn. Prentice Hall, Englewood Cliffs (1999)
Grassia, F.S.: Practical parameterization of rotations using the exponential map. Journal of Graphics Tools 3(3), 29–48 (1998)
Ghahramani, Z., Hinton, G.E.: Parameter estimation for linear dynamical systems. University of Toronto Technical Report CRG-TR-96-2, 6 pages (1996)
Nocedal, J., Wright, S.: Numerical Optimization. Springer, Heidelberg (1999)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2006 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Zhu, D., Wang, Z., Xia, S. (2006). Style Animations Generated from Dynamic Model. In: Pan, Z., Aylett, R., Diener, H., Jin, X., Göbel, S., Li, L. (eds) Technologies for E-Learning and Digital Entertainment. Edutainment 2006. Lecture Notes in Computer Science, vol 3942. Springer, Berlin, Heidelberg. https://doi.org/10.1007/11736639_124
Download citation
DOI: https://doi.org/10.1007/11736639_124
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-33423-1
Online ISBN: 978-3-540-33424-8
eBook Packages: Computer ScienceComputer Science (R0)