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http://dx.doi.org/10.15701/kcgs.2014.20.3.9

Body Motion Retargeting to Rig-space  

Song, Jaewon (KAIST)
Noh, Junyong (KAIST)
Publication Information
Journal of the Korea Computer Graphics Society / v.20, no.3, 2014 , pp. 9-17 More about this Journal
Abstract
This paper presents a method to retarget a source motion to the rig-space parameter for a target character that can be equipped with a complex rig structure as used in traditional animation pipelines. Our solution allows the animators to edit the retargeted motion easily and intuitively as they can work with the same rig parameters that have been used for keyframe animation. To acheive this, we analyze the correspondence between the source motion space and the target rig-space, followed by performing non-linear optimization for the motion retargeting to target rig-space. We observed the general workflow practiced by animators and apply this process to the optimization step.
Keywords
Motion Retargeting; Motion Capture; Character Rigging;
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1 T. McLaughlin, L. Cutler, and D. Coleman, "Character rigging, deformations, and simulations in film and game production," in ACM SIGGRAPH 2011 Courses, ser. SIGGRAPH '11. New York, NY, USA: ACM, 2011, pp. 5:1-5:18. [Online]. Available: http://doi.acm.org/10.1145/2037636.2037641
2 K. Grochow, S. L. Martin, A. Hertzmann, and Z. Popovi´c, "Style-based inverse kinematics," in ACM SIGGRAPH 2004 Papers, ser. SIGGRAPH '04. New York, NY, USA: ACM, 2004, pp. 522-531. [Online]. Available: http://doi.acm.org/10.1145/1186562.1015755
3 M. Gleicher, "Retargetting motion to new characters," in Proceedings of the 25th Annual Conference on Computer Graphics and Interactive Techniques, ser. SIGGRAPH '98. New York, NY, USA: ACM, 1998, pp. 33-42. [Online]. Available: http://doi.acm.org/10.1145/280814.280820
4 K. jin Choi and H. seok Ko, "On-line motion retargetting," Journal of Visualization and Computer Animation, vol. 11, pp. 223-235, 1999.
5 C. Hecker, B. Raabe, R. W. Enslow, J. DeWeese, J. Maynard, and K. van Prooijen, "Real-time motion retargeting to highly varied user-created morphologies," in ACM SIGGRAPH 2008 Papers, ser. SIGGRAPH '08. New York, NY, USA: ACM, 2008, pp. 27:1-27:11. [Online]. Available: http://doi.acm.org/10.1145/1399504.1360626
6 E. Hsu, M. da Silva, and J. Popovi´c, "Guided time warping for motion editing," in Proceedings of the 2007 ACM SIGGRAPH/ Eurographics Symposium on Computer Animation, ser. SCA '07. Aire-la-Ville, Switzerland, Switzerland: Eurographics Association, 2007, pp. 45-52. [Online]. Available: http://dl.acm.org/citation.cfm?id=1272690.1272697
7 J. Min, H. Liu, and J. Chai, "Synthesis and editing of personalized stylistic human motion," in Proceedings of the 2010 ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games, ser. I3D '10. New York, NY, USA: ACM, 2010, pp. 39-46. [Online]. Available: http://doi.acm.org/10.1145/1730804.1730811
8 C. K. Liu, A. Hertzmann, and Z. Popovi´c, "Learning physicsbased motion style with nonlinear inverse optimization," in ACM SIGGRAPH 2005 Papers, ser. SIGGRAPH '05. New York, NY, USA: ACM, 2005, pp. 1071-1081. [Online]. Available: http://doi.acm.org/10.1145/1186822.1073314
9 X. Wei, J. Min, and J. Chai, "Physically valid statistical models for human motion generation," ACM Trans. Graph., vol. 30, no. 3, pp. 19:1-19:10, May 2011. [Online]. Available: http://doi.acm.org/10.1145/1966394.1966398
10 P. Naas, Autodesk Maya 2014 Essentials: Autodesk Official Press, 1st ed. Alameda, CA, USA: SYBEX Inc., 2013.
11 F. Hahn, S. Martin, B. Thomaszewski, R. Sumner, S. Coros, and M. Gross, "Rig-space physics," ACM Trans. Graph., vol. 31, no. 4, pp. 72:1-72:8, July 2012. [Online]. Available: http://doi.acm.org/10.1145/2185520.2185568
12 F. Hahn, B. Thomaszewski, S. Coros, R. W. Sumner, and M. Gross, "Efficient simulation of secondary motion in rig-space," in Proceedings of the 12th ACM SIGGRAPH/Eurographics Symposium on Computer Animation, ser. SCA '13. New York, NY, USA: ACM, 2013, pp. 165-171. [Online]. Available: http://doi.acm.org/10.1145/2485895.2485918
13 S. G. Johnson, The NLopt nonlinear-optimization package, 2011. [Online]. Available: http://ab-initio.mit.edu/nlopt
14 M. J. D. Powell, "The BOBYQA algorithm for bound constrained optimization without derivatives," Department of Applied Mathematics and Theoretical Physics, Cambridge, England, Technical Report NA2009/06, 2009.
15 J. A. Nelder and R. Mead, "A simplex method for function minimization," Computer Journal, vol. 7, pp. 308-313, 1965.   DOI