نتایج جستجو برای: geometric deformable models gdm

تعداد نتایج: 994228  

Journal: :Computers & Graphics 2008
Fernando de Goes Siome Goldenstein Luiz Velho

Many graphics applications represent deformable surfaces through dynamic meshes. To be consistent during deformations, the dynamic meshes require an adaptation process. In this paper we present a simple and flexible framework to adapt dynamic meshes following deformable surfaces. Our scheme combines normal and tangential geometric corrections with refinement and simplification resolution contro...

2011
M. L. Yu H. Hu

A high-order spectral difference (SD) method has been further extended to solve the three dimensional compressible Navier–Stokes (N–S) equations on deformable dynamic meshes. In the SD method, the solution is approximated with piece-wise continuous polynomials. The elements are coupled with common Riemann fluxes at element interfaces. The extension to deformable elements necessitates a time-dep...

Journal: :Neural Computation 1997
Akio Utsugi

The self-organizing map (SOM) algorithm for finite data is derived as an approximate MAP estimation algorithm for a Gaussian mixture model with a Gaussian smoothing prior, which is equivalent to a generalized deformable model (GDM). For this model, objective criteria for selecting hyperparameters are obtained on the basis of empirical Bayesian estimation and crossvalidation, which are represent...

2011
Chunfang Qiu Cuilin Zhang Bizu Gelaye Daniel A. Enquobahrie Ihunnaya O. Frederick Michelle A. Williams

OBJECTIVE Higher heme iron intake is associated with increased type 2 diabetes risk. However, no previous study has evaluated gestational diabetes mellitus (GDM) risk in relation to heme iron intake during pregnancy. We investigated associations of maternal preconceptional and early pregnancy heme and nonheme iron intake with subsequent GDM risk. RESEARCH DESIGN AND METHODS We conducted a pro...

2007
Marc Gissler

We present a dynamic simulation framework for topologychanging deformable objects. The objects are represented using tetrahedral meshes and deformations are governed by a corotational finite element approach for linear elasticity and plasticity. Geometric constraints are employed to efficiently handle topology changes in a unified way. Topology changes comprise fracturing and merging of deforma...

1995
Hidefumi Wakamatsu Shinichi Hirai Kazuaki Iwata

A systematic approach to the modeling of deformable ne linear objects is presented. Various deformable objects are manipulated in many manufacturing processes. Deformation of these objects is often utilized in order to manipulate them successfully while the manipulation sometimes fails because of unexpected deformation of the objects. Modeling of deformable objects is thus required so that the ...

Journal: :Comput. Graph. Forum 2011
Lars Krecklau Leif Kobbelt

The complexity and detail of geometric scenes that are used in today’s computer animated films and interactive games have reached a level where the manual creation by traditional 3D modeling tools has become infeasible. This is why procedural modeling concepts have been developed which generate highly complex 3D models by automatically executing a set of formal construction rules. Well-known ex...

1994
Klaus D. Toennies Daniel Rueckert

Contour fitting in image segmentation guarantees the closedness of the segment boundary at any stage of the approximation, thus preserving an important global property of the segment. A contour fitting scheme consists of strategies to modify the contour and to optimize the current approximation. For the purpose of contour modification a two-dimensional adaptation of a geometrically deformable m...

2016
Sara L White Debbie A Lawlor Annette L Briley Keith M Godfrey Scott M Nelson Eugene Oteng-Ntim Stephen C Robson Naveed Sattar Paul T Seed Matias C Vieira Paul Welsh Melissa Whitworth Lucilla Poston Dharmintra Pasupathy

All obese women are categorised as being of equally high risk of gestational diabetes (GDM) whereas the majority do not develop the disorder. Lifestyle and pharmacological interventions in unselected obese pregnant women have been unsuccessful in preventing GDM. Our aim was to develop a prediction tool for early identification of obese women at high risk of GDM to facilitate targeted interventi...

Journal: :Computer-Aided Design 2013
Miguel Davia-Aracil Antonio Jimeno-Morenilla Faustino Salas

There is a growing need within the footwear sector to customise the design of the last from which a specific footwear style is to be produced. This customisation is necessary for user comfort and health reasons, as the user needs to wear a suitable shoe. For this purpose, a relationship must be established between the user foot and the last with which the style will be made; up until now, no mo...

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