R. Turner. "LEMAN: A System for Constructing and Animating Layered Elastic Characters". Computer Graphics: Developments in Virtual Environments, R. A. Earnshaw and J. A. Vince, England, Academic Press Ltd, p. 185-203, 1995.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....because of the complexity of the model geometry and the algorithm of the deformation. Models are commonly too complicated to achieve fast deformation if they are closed to real human body. Many researches had been done about the layered approach and have achieved preferable effects [4] 17] 18] 19][20]. Most researchers use articulated structures that are too simple to be deemed anatomically appropriate, while some other models are too complexity to animate in real time. Muscle layer is an important layer in the layered body modeling. Firstly, the shape and deformation of muscles determine the ....

....simulate restricted shapes of the muscles. LEMAN[21] developed by Turner uses implicit surface (include sphere and cylinder) to model muscles. The deformation is implemented by changing the global parameters of implicit surface, which is not intuitionally and interactive. Shen[18] 19] and Scheeper[20] also implemented muscle models using spheroids. The ellipsoidal muscle model can only simulate simple spindle muscles and their deformations. The model constructed by Amaury and Thaimann[I] 2] 3] is relatively close to our work. They proposed a concept named Action Line , which is a mass spring ....

Turner, R. "LEMAN: A System for Constructing and Animating Layered Elastic Characters", Computer Graphics: Developments in Virtual Environments, P A. Earnshaw and J. A. Vince, England, Academic Press Ltd, p. 185-203, 1995.

.... work mentioned above, muscles are made of combinations of three ellipsoids (two tendons and one muscle between) More recently, this work was extended and now, in her anatomically based model, muscles are represented by deformable discretized cylinders [38] Turner has developed the LEMAN system [35] to construct and animate 3D characters based on the elastic surface layer model. Muscles are modeled as deformable implicit surfaces (currently spheres, cylinders and superellipses) The muscle layer has been represented by deformable geometrical solid surfaces which the skin may not penetrate. ....

Turner, R. "LEMAN: A System for Constructing and Animating Layered Elastic Characters", Computer Graphics: Developments in Virtual Environments, R. A. Earnshaw and J. A. Vince, England, Academic Press Ltd, p. 185-203, 1995.

....volume (muscles, fat, bones and so on) and the skin layer. A good example of layered construction and animation of deformable characters is presented by Chadwick et al. 4] Others multi layered models were also be developed, as the ones presented by Gascuel et al. 7] Singh et al. 15] Turner [19] and Thalmann et al. 17] for example. Recently, multi layered techniques were applied to anatomically based models of humans and animals. Scheepers et al. 14] have presented a model where muscles (represented by deformable ellipsoids) react automatically to changes in the posture of the ....

Turner, R. "LEMAN: A System for Constructing and Animating Layered Elastic Characters", Computer Graphics: Developments in Virtual Environments. R. A. Earnshaw and J. A. Vince. England, Academic Press Ltd: 185-203, 1995.

.... software is still extremely laborious and it s still an open problem which is the most effective ways for humans to interact with synthetic 3D environments [Herndon 94] Some interaction techniques using 3D widget, two hand, free sketching or 6DOF devices have been developed in 3D modeling [Turner 95, Turner 96, Shaw 94, Grimn 95, Conner 95, Herndon 96] Since the use of such metaphors in 3D modeling promotes the maximum transfer of users knowledge of physical objects and actions into virtual environments, users can easily scale, translate, and rotate the virtual models with a proper widget ....

Russell Turner, "LEMAN: A System for Constructing and Animating Layered Elastic Characters", Proceedings Computer Graphics International 1995.

.... freedom, real time response, continuous response and feedback, probabilistic input and multiple simulation input and output streams from multiple users [Herndon 94] Fortunately, some non WIMP interaction techniques using 3D widget, two hand or 6DOF devices have been developed in 3D modeling [Turner 95, Turner 96, Shaw 94, Grimn 95, Conner 95] Since the use of such metaphors in 3D modeling promotes the maximum transfer of users knowledge of physical objects and actions into virtual environments, users can easily scale, translate, and rotate the virtual models with a proper widget using both ....

Russell Turner, "LEMAN: A System for Constructing and Animating Layered Elastic Characters", Proceedings Computer Graphics International 1995.

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Turner R (1995) LEMAN: A System for Constructing and Animating Layered Elastic Characters. Proc. Computer Graphics International .

No context found.

Turner R (1995) LEMAN: A System for Constructing and Animating Layered Elastic Characters. Proc. Computer Graphics International .

No context found.

R. Turner. "LEMAN: A System for Constructing and Animating Layered Elastic Characters". Computer Graphics: Developments in Virtual Environments, R. A. Earnshaw and J. A. Vince, England, Academic Press Ltd, p. 185-203, 1995.

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