نتایج جستجو برای: deformable meshes

تعداد نتایج: 20619  

2006
Johannes Wallner Helmut Pottmann J. Wallner H. Pottmann

We explore the geometry of isothermic meshes, conical meshes, and asymptotic meshes around the Christoffel dual construction of a discrete minimal surface. We present a discrete Legendre transform which realizes discrete minimal surfaces as conical meshes. Conical meshes turn out to be infinitesimally flexible if and only if their spherical image is isothermic, which implies that discrete minim...

In this research, numerical simulation of a symmetric impact of a 2-D wedge, considering dynamic equations in two-phase flow is taken into account. The two-phase flow around the wedge is solved based on finite volume method and volume of fluid (VOF) scheme. The dynamic mesh model is used to simulate dynamic motion of the wedge, thereby the effects of different dynamic meshes in both structured ...

2000
Ulisses T. Mello Paulo Roma Cavalcanti

A strategy is presented to define background meshes based on crystal lattices. Crystal-based background meshes have much better initial distribution of minimum dihedral angles than regular background meshes, facilitating the optimization procedures that rely on previously defined tetrahedral meshes. In addition, these background meshes can reduce significantly, or even eliminate, the number of ...

Journal: :Remote Sensing 2017
Zhaozhuo Xu Xin Xu Lei Wang Rui Yang Fangling Pu

Convolutional neural networks (CNNs) have demonstrated their ability object detection of very high resolution remote sensing images. However, CNNs have obvious limitations for modeling geometric variations in remote sensing targets. In this paper, we introduced a CNN structure, namely deformable ConvNet, to address geometric modeling in object recognition. By adding offsets to the convolution l...

Journal: :international journal of advanced structural engineering 2010
shirish vichare mandar m. inamdar

cylindrical concrete tanks are commonly used in wastewater treatment plants. these are usually clarifier tanks. design codes of practice provide methods to calculate design forces in the wall and raft of such tanks. these methods neglect self-weight of tank material and assume extreme, namely ‘fixed’ and ‘hinged’ conditions for the wall bottom. however, when founded on deformable soil, the actu...

Journal: :مهندسی برق و الکترونیک ایران 0
h. seyedarabi a. aghagolzadeh s. khanmohammadi e. kabir

face expression recognition is useful for designing new interactive devices offering the possibility of new ways for human to interact with computer systems. in this paper we develop a facial expressions analysis and synthesis system. the analysis part of the system is based on the facial features extracted from facial feature points (ffp) in frontal image sequences. selected facial feature poi...

Journal: :ACM Transactions on Graphics 2012

Journal: :Journal of the Robotics Society of Japan 1998

Journal: :General Relativity and Gravitation 2011

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