Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Werner Nagel"'
Publikováno v:
IEEE Access, Vol 11, Pp 125421-125438 (2023)
The capabilities of a parametric model for crack patterns simulation are presented. Planar tessellations are partitions of the plane into convex polygons (called cells) without overlapping. The Voronoi tessellations and Poisson line tessellations are
Externí odkaz:
https://doaj.org/article/60e6f42462d74d8dadd867a9d94e5d3e
Publikováno v:
Image Analysis and Stereology, Vol 39, Iss 1, Pp 33-46 (2020)
Random planar tessellations are presented which are generated by subsequent division of their polygonal cells. The purpose is to develop parametric models for crack patterns appearing at length scales which can change by orders of magnitude in areas
Externí odkaz:
https://doaj.org/article/c5d4cf9f3ecf41fcb8f5b583455d0c16
Publikováno v:
Image Analysis and Stereology, Vol 27, Iss 2, Pp 73-78 (2011)
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 a
Externí odkaz:
https://doaj.org/article/01ea644fdf184c8191be45c076957010
Publikováno v:
Image Analysis and Stereology, Vol 28, Iss 2, Pp 77-92 (2011)
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.
Externí odkaz:
https://doaj.org/article/2e5d9ed97e3a4a7ab1591665eb6c6377
Publikováno v:
Image Analysis and Stereology, Vol 22, Iss 1, Pp 11-19 (2011)
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 in image analysis,
Externí odkaz:
https://doaj.org/article/e23254ae9f004313bee4bd178910d92c
Autor:
Werner Nagel, Viola Weiss
Publikováno v:
Image Analysis and Stereology, Vol 27, Iss 1, Pp 29-37 (2011)
Recently (Nagel and Weiss, 2005), the class of homogeneous random tessellations that are stable under the operation of iteration (STIT) was introduced. In the present paper this model is reviewed and new results for the mean values of essential geome
Externí odkaz:
https://doaj.org/article/695577d1142745dcb34beb27483216b3
Publikováno v:
Image Analysis and Stereology, Vol 29, Iss 2, Pp 121-131 (2011)
For STIT tessellations – stationary tessellations that are stable under the operation iteration of tessellations – the second-ordermeasure of the edge system is studied. A result is that this measure coincides with that one of a Boolean segment p
Externí odkaz:
https://doaj.org/article/c0bd08b81ffd4c4d8135669923b6624c
Autor:
Werner Nagel, Viola Weiss
Publikováno v:
Image Analysis and Stereology, Vol 34, Iss 2 (2015)
Corrigendum of MEAN VALUES FOR HOMOGENEOUS STIT TESSELLATIONS IN 3D (2008 IMAGE ANAL STEREOL 27:29–37)
Externí odkaz:
https://doaj.org/article/240cf42a78e54c24aeeca8c1f66245ac
Autor:
Bart Billet, Lisa Goudman, Philippe Rigoard, Maxime Billot, Manuel Roulaud, Sören Verstraete, Werner Nagels, Maarten Moens
Publikováno v:
BJA Open, Vol 11, Iss , Pp 100305- (2024)
Background: In recent years, there has been a growing interest in the use of neuromodulation as an alternative treatment option for chronic pain. Neuromodulation techniques, such as spinal cord stimulation (SCS), dorsal root ganglion (DRG) stimulatio
Externí odkaz:
https://doaj.org/article/2f1409dc86ab43cb8e521c990978ca07
Autor:
Nicolas Chenavier, Werner Nagel
Publikováno v:
Extremes
Extremes, Springer Verlag (Germany), In press
Extremes, Springer Verlag (Germany), In press
A planar stationary and isotropic STIT tessellation at time $t>0$ is observed in the window $W_\rho={t^{-1}}\sqrt{\pi \ \rho}\cdot [-\frac{1}{2},\frac{1}{2}]^2$, for $\rho>0$. With each cell of the tessellation, we associate the inradius, which is th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::801cc10e983b58067655f3328ee79e21
https://doi.org/10.1007/s10687-019-00356-0
https://doi.org/10.1007/s10687-019-00356-0