Pose Space Surface Manipulation

Autor: Yusuke Yoshiyasu, Nobutoshi Yamazaki
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: International Journal of Computer Games Technology, Vol 2012 (2012)
Druh dokumentu: article
ISSN: 1687-7047
1687-7055
DOI: 10.1155/2012/596953
Popis: Example-based mesh deformation techniques produce natural and realistic shapes by learning the space of deformations from examples. However, skeleton-based methods cannot manipulate a global mesh structure naturally, whereas the mesh-based approaches based on a translational control do not allow the user to edit a local mesh structure intuitively. This paper presents an example-driven mesh editing framework that achieves both global and local pose manipulations. The proposed system is built with a surface deformation method based on a two-step linear optimization technique and achieves direct manipulations of a model surface using translational and rotational controls. With the translational control, the user can create a model in natural poses easily. The rotational control can adjust the local pose intuitively by bending and twisting. We encode example deformations with a rotation-invariant mesh representation which handles large rotations in examples. To incorporate example deformations, we infer a pose from the handle translations/rotations and perform pose space interpolation, thereby avoiding involved nonlinear optimization. With the two-step linear approach combined with the proposed multiresolution deformation method, we can edit models at interactive rates without losing important deformation effects such as muscle bulging.
Databáze: Directory of Open Access Journals
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