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Št. zadetkov: 5
Exact simulation of a Boolean model
Christian Lantuéjoul
Izvirni znanstveni članek
Oznake: stereologija;Boolov model;vzorčenje po pomembnosti;funkcija Minkowskega;Steinerjeva formula;fraktali;Boolean model;importance sampling;Minkowsky functionals;Steiner formula;
A Boolean model is a union of independent objects (compact random subsets) located at Poisson points. Two algorithms are proposed for simulating a Boolean model in a bounded domain. The first one applies only to stationary models. It generates the objects prior to their Poisson locations. Two exampl ...
Leto: 2013 Vir: dLib.si Digitalna knjižnica Slovenije
Unbiased estimators of specific connectivity
Jean-Paul Jernot, Patricia Jouannot, Christian Lantuéjoul
Izvirni znanstveni članek
Oznake:
This paper deals with the estimation of the specific connectivity of a stationary random set in IRd. It turns out that the ĆnaturalĆ estimator is only asymptotically unbiased. The example of a boolean model of hypercubes illustrates the amplitude of the bias produced when the measurement field is re ...
Leto: 2007 Vir: dLib.si Digitalna knjižnica Slovenije
Practical determination of the coordination number in granular media
Patricia Jouannot-Chesney, Jean-Paul Jernot, Christian Lantuéjoul
Izvirni znanstveni članek
Oznake:
In a random stacking of particles, the coordination number is defined as the mean number of particles touching a given one. A classical measurement by image analysis is directly based on this definition. It can be applied in the theoretical case of a global analysis but some problems occur for pract ...
Leto: 2006 Vir: dLib.si Digitalna knjižnica Slovenije
Evaluating the Euler-Poincaré characteristic of a set using a spatial tessellation
Jean-Paul Jernot, Patricia Jouannot-Chesney, Christian Lantuéjoul
Izvirni znanstveni članek
Oznake:
A new formula is established to evaluate the Euler-Poincare characteristic of a polyconvex subset X in Rd starting only from measurements of X in the cells of a tessellation. Simplifications occur when X is a union of cells of the tessellation, leading to another formula that unifies and extends sev ...
Leto: 2001 Vir: dLib.si Digitalna knjižnica Slovenije
Topological localisation of defects at atomic scale
Christian Lantuéjoul, Gérard Nouet, Pierre Ruterana, Jean-Paul Jernot, Patricia Jouannot-Chesney
Izvirni znanstveni članek
Oznake:
The problem addressed in this paper is the detection of defects on atomic structures. The procedure proposed is in two steps. At first a tessellation isbuilt starting from the atoms. It consists of a partition of the space into cells, and is used to define the neighbourhood relationships between the ...
Leto: 2002 Vir: dLib.si Digitalna knjižnica Slovenije
Št. zadetkov: 5
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