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Seminar "Character Animation" (SS 2008)
Seminar conducted by Michael Kipp and Alexis Heloir.
Abstract Animating hierarchical, articulated
structures like human bodies is a challenging task. A human
skeleton has many degrees of freedom that, ideally, should all
be controlled automatically according to high-level commands
(walk, grasp, gesture, change posture) and parameters (fast,
expansive, like an old person, jerky). The ultimate aim is
synthetic movement that looks natural (i.e. human-like), is
synchronized (e.g. to speech or music) and expressive (style,
personality, emotion). In this seminar, we will look at the
most important contributions to this field, ranging from
representational issues and inverse kinematics to motion
capture and questions of high-level style parameters.
Written Report Facts:
Facts:
- time: Thursdays, 16:20 h
- location: MPII, room 23 (ground level)
- language: English
- first meeting: 17 April 2008
- last meeting: 17 July 2008
- requirements for participation: at least 1 Computer graphics lecture/seminar
Requirements for successful participation:
- give a presentation (30 min) and discuss (10 min)
- hand in a written report (10-15 pages, English)
- chair one session (i.e. announce the speaker and manage discussion)
- attend all sessions
Presentations
| Date | Topic | Speaker (supervisor) | Material |
| 17.+24.04. | Introduction to character
animation
slides
| Michael Kipp | Watt, A., Watt,
M. (1992) Advanced Animation and Rendering Techniques,
Chapter 16.
Parent, R. (2002) Computer Animation,
Section 4.2 + Chapter 6. |
| 8.5. | Quaternions + SLERP
slides report
| Verena Kremer chair: Lessle (Kipp) | Shoemake
(1985) Animating Rotation with Quaternion
Curves
Lander (1998) Better 3D.
M. P. Johnson (2003) Exploiting Quaternions to Support Expressive Interactive Character
Motion, MIT, PhD thesis. |
| 15.5. | Inverse kinematics: Inverse Jacobian +
CCD
slides
| Fabian Lessle chair: Kremer (Kipp) | Welman (1993) Inverse Kinematics
and Geometric Contraints for Articulated Figure
Manipulation
Lander (1998) Oh My God, I Inverted
Kine
Lander (1998) Making Kine More Flexible
Complementary: Baxter (2000) Fast Numerical Methods for Inverse Kinematics
|
| 29.5. | Fast inverse
kinematics
slides
| Alexis Heloir | D. Tolani and
N. I. Badler (1996) Real-Time Inverse Kinematics Techniques for Anthropomorphic Limbs
Kulpa, R. and Multon, F. (2005) Fast inverse kinematics and kinetics solver for human-like figure (ieee paper, ask us if not available.)
Complementary: Chris Hecker et al. (2008) Real-Time Motion Retargeting to Highly Varied User-Created Morphologies
|
| 5.6. | Principles of traditional
animation
slides report |
Yuliya Akkuzhyna chair: Schiel (Heloir) | Lasseter (1987) Principles Of
Traditional Animation Applied To 3d Computer
Animation
Franck Thomas and Ollie Johnson (1981) The illusion of Life,
Disney animation, chapter 3. "The principles of animation".
Complementary: Sonoko Konishi, Michael Venturini (2007) Articulating
the Appeal
Complementary: Shawn Kelly (2008) Animation
tips and tricks
|
| 12.6. | EMOTE
slides report
| Patrick Schiel chair: Gier (Kipp) | Chi et al. (2000)
The EMOTE Model for Effort and Shape.
B. Hartmann and M. Mancini and C. Pelachaud (2006) Implementing Expressive Gesture Synthesis for Embodied Conversational Agents
|
| 19.6. | Motion Blending
Cancelled
| Stephane Birster chair: Pohl (Heloir) |
L. Kovar and M. Gleicher (2003) Flexible automatic motion blending with registration curves
Complementary : L. Ikemoto and D. Forsyth (2004) Enriching a Motion Collection by Transplanting Limbs
|
| 26.6. | Motion synthesis from annotations
slides report |
Saied Tehrani Chair: Akkuzhna (Kipp) | O. Arikan and D. A. Forsyth and J. F. O'Brien (2003) Motion synthesis from annotations
|
| 3.7. | Motion Graphs
slides report | Pascal Pohl chair: Tehrani (Heloir) | L. Kovar and M. Gleicher and F. Pighin (2002) Motion graphs
Complementary : Jehee Lee et al. (2004) Interactive Control of Avatars Animated with Human Motion Data |
| 10.7. | Physics
slides report | Adrian Gier chair: Stefan John (Kipp) | J. K. Hodgins and W. L. Wooten and D. C. Brogan and J. F.O'Brien (1995) Animating Human Athletics
|
| 17.7 | complementing physics with mocap
slides report | Stefan John chair: Schwarz (NEW) (Heloir) | V. B. Zordan and J. K. Hodgins (2002) Motion capture-driven simulations that hit and react
O. Arikan and D. A. Forsyth and J. F. O'Brien (2005) Pushing people around |
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