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- W109201277 abstract "This research addresses the problem of creating realistic human figures for human figure animation applications. Anatomy-based models of bones and joints are used to create articulated structures representing human skeletons. The skeletons are endowed with flesh by using anatomy-based models of muscles, tendons, fatty tissue, and skin. These models react automatically to changes in the posture of the underlying skeleton.Artists study anatomy to understand the relationship between exterior form and the underlying structures responsible for creating it. In a similar approach, this research identifies the anatomical structures that create and influence surface form, and establishes general principles that may be applied in the development of computer-based models of human figures.First, an anatomy-based model for the skeletal support of human figures is developed in which representations of individual bones and instances of different joint types may be arranged into a hierarchical structure. By using time-varying articulation variables, an animator can interactively manipulate the components of the hierarchy in order to pose the skeleton.Second, anatomy-based muscle and tendon models for simulating the deformable nature of skeletal muscles are developed. Using these models, single and multi-joint muscles may be attached to the skeleton. The principle benefit of using a layered construction based on general anatomical principles now becomes apparent: joint movements affect the spatial relationships between adjacent and non-adjacent bones, and the muscles attached to these bones reconfigure themselves accordingly to produce the desired deformations.Third, the modeling of fatty tissue and skin is considered. The generation of surfaces to represent the skin of human figures is influenced by the underlying skeleton and muscle models. An initial skin layer is created for each pose of the skeleton, and adjusted based on the presence or absence of simulated bone and muscle tissue in the vicinity of the skin surface.All anatomy-based models are implemented in a procedural modeling and animation language that provides convenient facilities for defining and manipulating hierarchical models." @default.
- W109201277 created "2016-06-24" @default.
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- W109201277 date "1996-01-01" @default.
- W109201277 modified "2023-09-25" @default.
- W109201277 title "Anatomy-based surface generation for articulated models of human figures" @default.
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