4篇
您的检索式：作者名="Bo Wurigen"
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| 1 | Multi-distorti on invariant image recognition with Radial-Harmonic-Fourier Moments显示文摘 | Ping Ziliang Bo Wurigen | 2003 | Journal of Optical Society of America A2003，20，4： | 1 |
| 2 | Multi- distortion invariant image recognition with Radial- Harmonic-Fourier moments 显示文摘 | Haiping Ren Ziliang Ping Wurigen Bo | 2003 | Journal of Optical Society of America A2003，120，4： | 1 |
| 3 | Multidistortioninvariant image recognition with radial harmonic Fourier moments显示文摘 | Ren Haiping Ping Ziliang Bo Wurigen | 2003 | J Opt Soc Am A2003，20，4： | 1 |
| 4 | R-Adaptive Reconnection-basedArbitrary Lagrangian EulerianMethod-R-ReALE显示文摘We present a new R-adaptive Arbitrary Lagrangian Eulerian(ALE)method,based on the reconnection-based ALE-ReALE methodology[5,41,42].The main elements in a standard ReALE method are:an explicit Lagrangian phase on an arbitrary polygonal(in 2D)mesh,followed by a rezoning phase in which a new grid is defined,and a remapping phase in which the Lagrangian solution is transferred onto the new grid.The rezoned mesh is smoothed by using one or several steps toward centroidal Voronoi tessellation,but it is not adapted to the solution in any way.We present a new R-adaptive ReALE method(R-ReALE,where R stands for Relocation).The new method is based on the following design principles.First,a monitor function(or error indicator)based on Hessian of some flow parameter(s),is utilized.Second,the new algorithm uses the equidistribution principle with respect to the monitor function as criterion for defining an adaptive mesh.Third,centroidal Voronoi tessellation is used for the construction of the adaptive mesh.Fourth,we modify the raw monitor function(scale it to avoid extremely small and large cells and smooth it to create a smooth mesh),in order to utilize theoretical results related to centroidal Voronoi tessellation.In the R-ReALEmethod,the number of mesh cells is chosen at the beginning of the calculation and does not changewith time,but themesh is adapted according to themodified monitor function during the rezone stage at each time step.We present all details required for implementation of the new adaptive R-ReALE method and demonstrate its performance relative to standard ReALEmethod on a series of numerical examples. | Wurigen Bo Mikhail Shashkov | 2015 | Journal of Mathematical Study2015，48，2： | 0 |
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