Document Type

Journal Article

Department/Unit

Department of Computer Science

Title

Topology aware data-driven inverse kinematics

Language

English

Abstract

Creating realistic human movement is a time consuming and labour intensive task. The major difficulty is that the user has to edit individual joints while maintaining an overall realistic and collision free posture. Previous research suggests the use of data-driven inverse kinematics, such that one can focus on the control of a few joints, while the system automatically composes a natural posture. However, as a common problem of kinematics synthesis, penetration of body parts is difficult to avoid in complex movements. In this paper, we propose a new data-driven inverse kinematics framework that conserves the topology of the synthesizing postures. Our system monitors and regulates the topology changes using the Gauss Linking Integral (GUI), such that penetration can be efficiently prevented. As a result, complex motions with tight body movements, as well as those involving interaction with external objects, can be simulated with minimal manual intervention. Experimental results show that using our system, the user can create high quality human motion in real-time by controlling a few joints using a mouse or a multi-touch screen. The movement generated is both realistic and penetration free. Our system is best applied for interactive motion design in computer animations and games. © 2013 The Eurographics Association and John Wiley & Sons Ltd.

Publication Date

2013

Source Publication Title

Computer Graphics Forum

Volume

32

Issue

7

Start Page

61

End Page

70

Publisher

Wiley

DOI

10.1111/cgf.12212

Link to Publisher's Edition

http://dx.doi.org/10.1111/cgf.12212

ISSN (print)

01677055

ISSN (electronic)

14678659

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