Articulated‐Motion‐Aware Sparse Localized Decomposition

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dc.contributor.authorWang, Yupanen_US
dc.contributor.authorLi, Guiqingen_US
dc.contributor.authorZeng, Zhichaoen_US
dc.contributor.authorHe, Huayunen_US
dc.contributor.editorChen, Min and Zhang, Hao (Richard)en_US
dc.date.accessioned2018-01-10T07:42:53Z
dc.date.available2018-01-10T07:42:53Z
dc.date.issued2017
dc.description.abstractCompactly representing time‐varying geometries is an important issue in dynamic geometry processing. This paper proposes a framework of sparse localized decomposition for given animated meshes by analyzing the variation of edge lengths and dihedral angles (LAs) of the meshes. It first computes the length and dihedral angle of each edge for poses and then evaluates the difference (residuals) between the LAs of an arbitrary pose and their counterparts in a reference one. Performing sparse localized decomposition on the residuals yields a set of components which can perfectly capture local motion of articulations. It supports intuitive articulation motion editing through manipulating the blending coefficients of these components. To robustly reconstruct poses from altered LAs, we devise a connection‐map‐based algorithm which consists of two steps of linear optimization. A variety of experiments show that our decomposition is truly localized with respect to rotational motions and outperforms state‐of‐the‐art approaches in precisely capturing local articulated motion.Compactly representing time‐varying geometries is an important issue in dynamic geometry processing. This paper proposes a framework of sparse localized decomposition for given animated meshes by analysing the variation of edge lengths and dihedral angles (LAs) of the meshes. It first computes the length and dihedral angle of each edge for poses and then evaluates the difference (residuals) between the LAs of an arbitrary pose and their counterparts in a reference one. Performing sparse localized decomposition on the residuals yields a set of components which can perfectly capture local motion of articulations.en_US
dc.description.number8
dc.description.sectionheadersArticles
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume36
dc.identifier.doi10.1111/cgf.13076
dc.identifier.issn1467-8659
dc.identifier.pages247-259
dc.identifier.urihttps://doi.org/10.1111/cgf.13076
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13076
dc.publisher© 2017 The Eurographics Association and John Wiley & Sons Ltd.en_US
dc.subjectsparse localized decomposition
dc.subjectedge lengths and dihedral angles
dc.subjectmotion editing
dc.subjectanimations
dc.subjectI.3.7 Three‐Dimensional Graphics and Realism Animation
dc.titleArticulated‐Motion‐Aware Sparse Localized Decompositionen_US
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