Displaying similar documents to “Event and apparent horizon finders for 3 + 1 numerical relativity.”

Numerical algorithms for perspective shape from shading

Michael Breuss, Emiliano Cristiani, Jean-Denis Durou, Maurizio Falcone, Oliver Vogel (2010)

Kybernetika

Similarity:

The Shape-From-Shading (SFS) problem is a fundamental and classic problem in computer vision. It amounts to compute the 3-D depth of objects in a single given 2-D image. This is done by exploiting information about the illumination and the image brightness. We deal with a recent model for Perspective SFS (PSFS) for Lambertian surfaces. It is defined by a Hamilton–Jacobi equation and complemented by state constraints boundary conditions. In this paper we investigate and compare three...

Effects of substrate and graphene surface roughness on graphene sheet plasmons

Keenan Lyon, Z.L. Miškovic (2014)

Nanoscale Systems: Mathematical Modeling, Theory and Applications

Similarity:

We study the effects of roughness in a graphene layer that lies on a substrate with rough surface on the dynamic response of such a structure. Using an analytical expression for the dielectric function of flat graphene in the optical limit allows us to tackle the effects of roughness on the sheet plasmon in graphene. We first formulate a stochastic eigenvalue problem for the plasmon dispersion in terms of the roughness parameters that include both the auto– and the cross–correlation...

The Hubble constant.

Jackson, Neal (2007)

Living Reviews in Relativity [electronic only]

Similarity: