Artist-Directed Inverse-Kinematics Using Radial Basis Function Interpolation

Computer Graphics Forum Computer Graphics Forum Volume 20 Issue 3, Pages 239 - 250 Published Online: 25 Jul 2002 Journal compilation © 2010 The Eurographics Association and Blackwell Publishing * Get Sample Copy * Recommend to Your Librarian * Save journal to My Profile * Set E-Mail Alert * Email this page * Print this page * RSS web feed (What is RSS?) < Previous Abstract | Next Abstract > Save Article to My Profile Download Citation Request Permissions Abstract | Full Text: PDF (Size: 4736K) | Related Articles | Citation Tracking Animation Artist-Directed Inverse-Kinematics Using Radial Basis Function Interpolation Charles F. Rose III, Peter-Pike J. Sloan & Michael F. Cohen 1 Microsoft Research Copyright The Eurographics Association and Blackwell Publishers 2001 KEYWORDS Image-based modeling/rendering • projective geometry • vanishing line • panoramic image. ABSTRACT One of the most common tasks in computer animation is inverse-kinematics, or determining a joint configuration required to place a particular part of an articulated character at a particular location in global space. Inverse-kinematics is required at design-time to assist artists using commercial 3D animation packages, for motion capture analysis, and for run-time applications such as games. We present an efficient inverse-kinematics methodology based on the interpolation of example motions and positions. The technique is demonstrated on a number of inverse-kinematics positioning tasks for a human figure. In addition to simple positioning tasks, the method provides complete motion sequences that satisfy an inverse-kinematic goal. The interpolation at the heart of the algorithm allows an artistʹs influence to play a major role in ensuring that the system always generates plausible results. Due to the lightweight nature of the algorithm, we can position a character at extremely high frame rates, making the technique useful for time-critical run-time applications such as games. DIGITAL OBJECT IDENTIFIER (DOI) 10.1111/1467-8659.00516 About DOI Related Articles * Find other articles like this in Wiley InterScience * Find articles in Wiley InterScience written by any of the authors Request ReprintReprint Request Wiley InterScience is a member of CrossRef. Cross Ref Member