Results 11 to 20 of about 18,509 (183)
Entropy as a Geometrical Source of Information in Biological Organizations
Entropy, 2022 Considering both biological and non-biological polygonal shape organizations, in this paper we introduce a quantitative method which is able to determine informational entropy as spatial differences between heterogeneity of internal areas from simulation
Juan Lopez-Sauceda +5 more
doaj +1 more source
Breaking Permutation-Based Mesh Steganography and Security Improvement
IEEE Access, 2019 Permutation-based steganography in polygonal meshes can provide considerably large embedding capacities for hiding secret messages. However, corresponding steganalysis techniques against such methods have never been studied.
Yimin Wang +5 more
doaj +1 more source
A virtual element method for the vibration problem of Kirchhoff plates [PDF]
, 2017 The aim of this paper is to develop a virtual element method (VEM) for the vibration problem of thin plates on polygonal meshes. We consider a variational formulation relying only on the transverse displacement of the plate and propose an $H^2(\Omega ...
Mora, David +2 more
core +2 more sources
Discrete Laplacians on general polygonal meshes [PDF]
ACM Transactions on Graphics, 2011 While the theory and applications of discrete Laplacians on triangulated surfaces are well developed, far less is known about the general polygonal case. We present here a principled approach for constructing geometric discrete Laplacians on surfaces with arbitrary polygonal faces ...
Marc Alexa, Max Wardetzky
openaire +2 more sources
CITY RECONSTRUCTION FROM AIRBORNE LIDAR: A COMPUTATIONAL GEOMETRY APPROACH [PDF]
ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 We introduce a pipeline that reconstructs buildings of urban environments as concise polygonal meshes from airborne LiDAR scans. It consists of three main steps: classification, building contouring, and building reconstruction, the two last steps being ...
J.-P. Bauchet, J.-P. Bauchet, F. Lafarge
doaj +1 more source
Colour interpolants for polygonal gradient meshes [PDF]
Computer Aided Geometric Design, 2019 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gerben J. Hettinga +2 more
openaire +3 more sources
On the Virtual Element Method for Topology Optimization on polygonal meshes: a numerical study [PDF]
, 2016 It is well known that the solution of topology optimization problems may be affected both by the geometric properties of the computational mesh, which can steer the minimization process towards local (and non-physical) minima, and by the accuracy of the ...
Antonietti, Paola F. +3 more
core +2 more sources
Progressive compression of manifold polygon meshes [PDF]
Computers & Graphics, 2012 This paper presents a new algorithm for the progressive compression of manifold polygon meshes. The input surface is decimated by several traversals that generate successive levels of detail through a specific patch decimation operator which combines vertex removal and local remeshing.
Maglo, Adrien +3 more
openaire +3 more sources
Urban Building Mesh Polygonization Based on 1-Ring Patch and Topology Optimization
Remote Sensing, 2021 With the development of UAV and oblique photogrammetry technology, the multi-view stereo image has become an important data source for 3D urban reconstruction, and the surface meshes generated by it have become a common way to represent the building ...
Li Yan, Yao Li, Hong Xie
doaj +1 more source
Addressing Integration Error for Polygonal Finite Elements Through Polynomial Projections: A Patch Test Connection [PDF]
, 2013 Polygonal finite elements generally do not pass the patch test as a result of quadrature error in the evaluation of weak form integrals. In this work, we examine the consequences of lack of polynomial consistency and show that it can lead to a ...
Paulino, Glaucio H., Talischi, Cameron
core +1 more source