Laguerre approximation of random foams
Laguerre approximation of random foams
复制标题
随机泡沫的拉盖尔近似
DOI:
10.1080/14786435.2015.1078511
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发表时间:
2015
影响因子:
1.6
通讯作者:
A. Liebscher
中科院分区:
文献类型:
--
作者:
A. Liebscher
Stochastic models for the microstructure of foams are valuable tools to study the relations between microstructure characteristics and macroscopic properties. Owing to the physical laws behind the formation of foams, Laguerre tessellations have turned out to be suitable models for foams. Laguerre tessellations are weighted generalizations of Voronoi tessellations, where polyhedral cells are formed through the interaction of weighted generator points. While both share the same topology, the cell curvature of foams allows only an approximation by Laguerre tessellations. This makes the model fitting a challenging task, especially when the preservation of the local topology is required. In this work, we propose an inversion-based approach to fit a Laguerre tessellation model to a foam. The idea is to find a set of generator points whose tessellation best fits the foam’s cell system. For this purpose, we transform the model fitting into a minimization problem that can be solved by gradient descent-based optimization. The proposed algorithm restores the generators of a tessellation if it is known to be Laguerre. If, as in the case of foams, no exact solution is possible, an approximative solution is obtained that maintains the local topology.
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影响因子:
1.2
作者:
C. Lautensack;S. Zuyev
通讯作者:
S. Zuyev
影响因子:
3.3
作者:
E. Schüle
通讯作者:
E. Schüle
影响因子:
1.6
作者:
A. Alpers;A. Brieden;P. Gritzmann;A. Lyckegaard;H. F. Poulsen
通讯作者:
H. F. Poulsen
DOI:
--
发表时间:
2014
期刊:
Computer/law journal
影响因子:
--
作者:
Q. Duan;Dirk P. Kroese;T. Brereton;A. Spettl;V. Schmidt
通讯作者:
V. Schmidt
影响因子:
5
作者:
J. Boike;K. Abramova;D. Bolshiyanov;M. Grigoriev;U. Herzschuh;G. Kattner;C. Knoblauch;L. Kutzbach;G. Mollenhauer;W. Schneider
通讯作者:
W. Schneider