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Št. zadetkov: 10
Labeling of N-dimensional images with choosable adjacency of the pixels
Kai Sandfort, Joachim Ohser
Izvirni znanstveni članek
Oznake:
The labeling of discretized image data is one of the most essential operationsin digital image processing. The notions of an adjacency system of pixels and the complementarity of two such systems are crucial to guarantee consistency of any labeling routine. In to datećs publications, this complement ...
Leto: 2009 Vir: dLib.si Digitalna knjižnica Slovenije
Spatial dependence of random sets and its application to dispersion of bark beetle infestation in a natural forest
Markus Kautz, Jochen Düll, Joachim Ohser
Izvirni znanstveni članek
Oznake: populacijska gostota;Fourierjeva transformacija;hrošči;
Image Analysis and Stereology is the official journal of the International Society for Stereology. It promotes the exchange of scientific, technical, organizational and other information on the quantitative analysis of data having a geometrical structure, including stereology, differential geometry, ...
Leto: 2011 Vir: dLib.si Digitalna knjižnica Slovenije
Second moment measure and K-function for planar STIT tessellations
Viola Weiss, Joachim Ohser, Werner Nagel
Izvirni znanstveni članek
Oznake:
Leto: 2010 Vir: dLib.si Digitalna knjižnica Slovenije
Imaging of fluorophores in chromatographic beads, recontruction of radial density distributions and characterisation of protein uptaking processes
Bernd Stanislawski, Elodie Schmit, Joachim Ohser
Izvirni znanstveni članek
Oznake: stereologija;proteini;kromatografija;mikroskopija;analiza slik;modeli;
Leto: 2010 Vir: dLib.si Digitalna knjižnica Slovenije
Mesh free estimation of the structure model index
Joachim Ohser, Claudia Redenbach, Katja Schladitz
Izvirni znanstveni članek
Oznake:
The structure model index (SMI) is a means of subsuming the topology of a homogeneous random closed set under just one number, similar to the isoperimetric shape factors used for compact sets. Originally, the SMI is defined as a function of volume fraction, specific surface area and first derivarive ...
Leto: 2009 Vir: dLib.si Digitalna knjižnica Slovenije
Miles formulae for boolean models observed on lattices
Joachim Ohser, Werner Nagel, Katja Schladitz
Izvirni znanstveni članek
Oznake:
The densities of the intrinsic volumes - in 3D the volume density, surface density, the density of the integral of the mean curvature and the density of the Euler number - are a very useful collection of geometric characteristics of random sets. Combining integral and digital geometry we develop a m ...
Leto: 2009 Vir: dLib.si Digitalna knjižnica Slovenije
The Euler number of discretised sets - surprinsing results in three dimensions
Joachim Ohser, Werner Nagel, Katja Schladitz
Izvirni znanstveni članek
Oznake:
The problem of estimating the Euler-Poincare characteristic (Euler number for short) of a set in the 3d Euclidean space is considered, given that this set is observed in the points of a lattice. In this situation, which is typical inimage analysis, the choice of an appropriate data-based discretisat ...
Leto: 2003 Vir: dLib.si Digitalna knjižnica Slovenije
A tessellation model for crack patterns on surfaces
Werner Nagel, Joseph Mecke, Joachim Ohser, Viola Weiss
Izvirni znanstveni članek
Oznake:
This paper presents a model of random tessellations that reflect several features of crack pattern. There are already several theoretical results derivedwhich indicate that thismodel can be an appropriate referencemodel. Some potential applications are presented in a tentative statistical study.
Leto: 2008 Vir: dLib.si Digitalna knjižnica Slovenije
Estimating number density Nv - a comparison of an improved Saltykov estimator and the disector method
Ashot Davtian, Ute Hahn, Joachim Ohser, Dietrich Stoyan
Izvirni znanstveni članek
Oznake: stereologija;metode;
Leto: 2000 Vir: dLib.si Digitalna knjižnica Slovenije
Characterization of the formation of filter paper using the Bartlett spectrum of the fiber structure
Martin Lehmann, Jobst Eisengräber-Pabst, Joachim Ohser, Ali Moghiseh
Izvirni znanstveni članek
Oznake: analiza slik;vlakna;filtrirni papir;Bartlettov spekter;mikrostruktura;Bartlett spectrum;chart cloudiness;fiber system;filter paper;formation;image analysis;
The formation index of filter paper is one of the most important characteristics used in industrial quality control. Its estimation is often based on subjective comparison chart rating or, even more objective, on the power spectrum of the paper structure observed on a transmission light table. It is ...
Leto: 2013 Vir: dLib.si Digitalna knjižnica Slovenije
Št. zadetkov: 10
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