Computer animation of simulated characters using...

Details Computer animation of simulated characters using... Computer animation of simulated characters using...

2008-07-22

2008-07-22

Chauhan, Ulka (Department: 2628)

Computer graphics processing and selective visual display system

Computer graphics processing

Animation

C345S952000

Reexamination Certificate

active

07403202

ABSTRACT:
Embodiments of the present invention provide methods and apparatus wherein physics models are integrated with motion capture animation to allow for variability in animations, dynamic response, such as animating events different from those for which motion capture data was obtained, including changes in character purpose and collisions. The physical model may include sets of internal forces and/or external forces. To facilitate the integration of mo-cap animation data with physics models, mo-cap animation data is played back using forces on physical models rather than directly setting joint angles or positions in a graphical skeleton, which allows the animation to be dynamically altered in real-time in a physically realistic manner by external forces and impulses.

REFERENCES:
patent: 5982389 (1999-11-01), Guenter et al.
patent: 6191798 (2001-02-01), Handelman et al.
patent: 6661420 (2003-12-01), Arai et al.
patent: 2003/0179205 (2003-09-01), Smith et al.
patent: 2003/0227453 (2003-12-01), Beier et al.
patent: 2004/0169656 (2004-09-01), Piponi et al.
Lucas Kovar, Michael Gleicher, Frédéric Pighin, “Motion Graphs,” Jul. 2002, ACM Transactions on Graphics (TOG), v.21 n.3, p. 473-482.
Ari Shapiro, Fred Pighin , Petros Faloutsos, “Hybrid Control for Interactive Character Animation,” Oct. 8, 2003, Proceedings of the 11th Pacific Conference on Computer Graphics and Applications, p. 455.
Victor Brian Zordan , Jessica K. Hodgins, “Motion capture-driven simulations that hit and react,” Jul. 21, 2002, Proceedings of the 2002 ACM SIGGRAPH/Eurographics Symposium on Computer Animation, p. 89-96, 193.
Victor Brian Zordan, Nicholas C. Van Der Horst, “Mapping Optical Motion Capture Data to Skeletal Motion using a Physical Model,” Jul. 26, 2003, Proceedings of the 2003 ACM SIGGRAPH/Eurographics Symposium on Computer Animation, p. 245-250.
Lucas Kovar, Michael Gleicher, Frédéric Pighin, “Motion Graphs,” Jul. 2002, ACM Transactions on Graphics (TOG), v.21 n.3, p. 473-482.
Ari Shapiro, Fred Pighin , Petros Faloutsos, “Hybrid Control for Interactive Character Animation,” Oct. 8, 2003, Proceedings of the 11th Pacific Conference on Computer Graphics and Applications, p. 455.
Victor Brian Zordan , Jessica K. Hodgins, “Motion capture-driven simulations that hit and react,” Jul. 21, 2002, Proceedings of the 2002 ACM SIGGRAPH/Eurographics Symposium on Computer Animation, p. 89-96, 193.
Victor Brian Zordan, Nicholas C. Van Der Horst, “Mapping Optical Motion Capture Data to Skeletal Motion using a Physical Model,” Jul. 26, 2003, Proceedings of the 2003 ACM SIGGRAPH/Eurographics Symposium on Computer Animation, p. 245-250.
Victor Brian Zordan, Anna Majkowska, Bill Chiu, Matthew Fast, “Dynamic Response for Motion Capture Animation,” Jul. 2005, ACM Transactions on Graphics (TOG), vol. 24, No. 3, p. 697-701.
Marek Teichmann and Seth Teller, “Assisted Articulation of Closed Polygonal Modules,” Sep. 1998, In 9th Eurographics Workshop on Animation and Simulation [online], [retrieved on Sep. 12, 2007]. Retrieved from the Internet: <URL:http://citeseer.ist.psu.edu/teichmann98assisted.html>.
Victor Brian Zordan, Anna Majkowska, Bill Chiu, Matthew Fast, “Dynamic Response for Motion Capture Animation,” Jul. 2005, ACM Transactions on Graphics (TOG), vol. 24, No. 3, p. 697-701.
Badler et al., “Simulating Humans”,Department of Computer and Information Science, University of Pennsylvania. (Oxford University Press, Inc. 1993) , pp. 12-15, 34-38, 67-98.
Baraff, “An Introduction to Physically Based Modeling—Rigid Body Simulation I—Unconstrained Rigid Body Dynamics”, pp. D32-D68, Online SIGGRAPH Course Notes 1997.
Baraff, “An Introduction to Physically Based Modeling—Rigid Body Simulation II—Nonpenetration Constraints”, pp. D1-D31, Online SIGGRAPH Course Notes 1997.
Baraff, “Physically Based Modeling: Principles and Practice Implicit Methods for Differential Equations”, pp. E1-E4, Online SIGGRAPH Course Notes 1997.
Faloutsos et al., “Composeable Controllers For Physically-Based Character Animation”, pp. 1-2,Department of Computer Science, University of Toronto (1999).
Grzeszczuk et al., “NeuroAnimator: Fast Neural Network Emulation and Control of Physics-Based Models”, pp. 1-104,Department of Computer Science, University of Toronto (1998).
“Havok—Animation”, Havok product description, p. 1, Printed from the internet at www.havok.com/content/view/18/31/html on Feb. 14, 2006.
“Havok—Complete”, Havok product description, p. 1, Printed from the internet at www.havok.com/content/view/17/30/html on Feb. 14, 2006.
“Havok—Physics”, Havok product description, p. 1, Printed from the internet at www.havok.com/content/view/17/30/html on Feb. 14, 2006.
“Havok—FX”, Havok product description, pp. 1-3, Printed from the internet at www.havok.com/content/view/187/77/html on Feb. 14, 2006.
Hodgins et al., “Animating Human Athletics”, International Conference on Computer Graphics and Interactive Proceedings of the 22nd Annual Conference on Computer Graphics and Interactive techniques, pp. 71-78, SIGGRAPH '95 ACM Press, New York, NY, (1995).
Kokkevis, E., “Practical Physics for Articulated Characters”, pp. 1-16, Sony Computer Entertainment America, Game Developers Conference (2004).
Kovar, et al. “Motion graphs”, pp. 473-482, Proceedings of the 29th Annual Conference on Computer Graphics and Interactive Techniques, San Antonio, Jul. 23-26, 2002.
Liu et al., “Synthesis of Complex Dynamic Character Motion from Simple Animations”, pp. 408-416, Proceedings of ACM SIGGRAPH, San Antonio, Jul. 23-26, 2002.
“Natural Motion Dynamic Motion Synthesis” Natural Motion product description, pp. 1-3, Printed from the internet at www.naturalmotion.com/pages/products/html on Feb. 14, 2006.
O'Brien et al., “Dynamic Simulation of Human Diving and Splashing Fluids”, pp. 1-4, Printed from the internet at http://www.cs.berkeley.edu/˜job/Papers/obrien-1994-DSH.pdf on Feb. 6, 2006.
Savenko et al., “A Biomechanics-Based Model for the Animation of Human Locomotion”, pp. 1-11,Department of Computer and Information Sciences, De Montfort University Milton Keynes, UK. (1999).
Witkin et al., “Motion Warping”, Proceedings of ACM SIGGRAPH 95, Annual Conference Series, pp. 105-108. ACM SIGGRAPH, Aug. 1995.
Witkin, “Physically Based Modeling: Principles and Practice—Constrained Dynamics”, pp. F1-F12, Online SIGGRAPH Course Notes 1997.
Witkin et al., “Physically Based Modeling: Principles and Practice—Differential Equation Basics”, pp. B1-B8, Online SIGGRAPH Course Notes 1997.
Witkin, “Physically Based Modeling: Principles and Practice—Differential Equation Basics”, pp. C1-C12, Online SIGGRAPH Course Notes 1997.
Wooten et al., “Animation of Human Diving” pp. 1-6, Printed from the internet at http://www.cc.gatech.edu/gvu/animation/papers/cgf96.pdf on Feb. 6, 2006.
Zordan et al., “Tracking and Modifying Upper-body Human Motion Data with Dynamic Simulation”, pp. 13-22, Computer Animation and Simulation '99, Eurographics Animation Workshop, N. Magnenat-Thalmann and D. Thalmann, eds., Springer-Verlag, Wien (Sep. 1999).

Affiliated with

Also associated with

Rating

Computer animation of simulated characters using... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Computer animation of simulated characters using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Computer animation of simulated characters using... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2800366