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View-dependent dynamics of articulated bodies

Title
View-dependent dynamics of articulated bodies
Authors
Kim S.Redon S.Kim Y.J.
Ewha Authors
김영준
SCOPUS Author ID
김영준scopus
Issue Date
2008
Journal Title
Computer Animation and Virtual Worlds
ISSN
1546-4261JCR Link
Citation
Computer Animation and Virtual Worlds vol. 19, no. 41337, pp. 223 - 233
Indexed
SCI; SCIE; SCOPUS WOS scopus
Document Type
Conference Paper
Abstract
We propose a method for view-dependent simplification of articulated-body dynamics, which enables an automatic trade-off between visual precision and computational efficiency. We begin by discussing the problem of simplifying the simulation based on visual criteria, and show that it raises a number of challenging questions. We then focus on articulated-body dynamics simulation, and propose a semi-predictive approach which relies on a combination of exact, a priori error metrics computations, and visibility estimations. We suggest several variants of semi-predictive metrics based on hierarchical data structures and the use of graphics hardware, and discuss their relative merits in terms of computational efficiency and precision. Finally, we present several benchmarks and demonstrate how our view-dependent articulated-body dynamics method allows an animator (or a physics engine) to finely tune the visual quality and obtain potentially significant speed-ups during interactive or off-line simulations. Copyright © 2008 John Wiley & Sons, Ltd.
DOI
10.1002/cav.245
Appears in Collections:
엘텍공과대학 > 컴퓨터공학과 > Journal papers
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