Results 21 to 30 of about 5,652 (312)

Regular meshes from polygonal patterns

open access: yesACM Transactions on Graphics, 2017
We present a framework for designing shapes from diverse combinatorial patterns, where the vertex 1-rings and the faces are as rotationally symmetric as possible, and define such meshes as regular. Our algorithm computes the geometry that brings out the symmetries encoded in the combinatorics. We then allow designers and artists to envision and realize
Vaxman, Amir   +2 more
openaire   +3 more sources

Breaking Permutation-Based Mesh Steganography and Security Improvement

open access: yesIEEE 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

Approximating uniform triangular meshes in polygons

open access: yesTheoretical Computer Science, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Aurenhammer, F   +4 more
openaire   +1 more source

Survey of polygonal surface simplification algorithms on GPU

open access: yesТруды Института системного программирования РАН, 2018
Rendering time depends on number of faces in polygonal mesh. Displaying large number of objects or objects with a lot of faces can result in performance degradation.
V. I. Gonakhchyan
doaj   +1 more source

Tsallis Entropy for Geometry Simplification

open access: yesEntropy, 2011
This paper presents a study and a comparison of the use of different information-theoretic measures for polygonal mesh simplification. Generalized measures from Information Theory such as Havrda–Charvát–Tsallis entropy and mutual information have been ...
Miguel Chover   +4 more
doaj   +1 more source

THE USE OF BREAKLINES OF HYDROGRAPHIC OBJECTS IN THREE-DIMENSIONAL MODELING OF CITIES [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Three-dimensional polygonal models are used for various tasks. They are created based on aerial photography or aerial laser scanning. In this paper, a study is conducted on what tasks require the correct geometry of the model on water bodies.
P. P. Kuklina   +2 more
doaj   +1 more source

Structure-aware Building Mesh Polygonization

open access: yesISPRS Journal of Photogrammetry and Remote Sensing, 2020
We introduce a novel approach for the polygonization of Multi-view Stereo (MVS) meshes of buildings, which results in compact and topologically valid models. The main characteristic of our method is structure awareness, i.e., the recovery and preservation of the initial mesh primitives and their adjacencies.
Bouzas, V. (author)   +2 more
openaire   +3 more sources

Mesh smoothing algorithm based on exterior angles split.

open access: yesPLoS ONE, 2020
Since meshes of poor quality give rise to low accuracy in finite element analysis and kinds of inconveniences in many other applications, mesh smoothing is widely used as an essential technique for the improvement of mesh quality.
Yongqing Hai   +3 more
doaj   +1 more source

A steganalytic algorithm for 3D polygonal meshes [PDF]

open access: yes2014 IEEE International Conference on Image Processing (ICIP), 2014
We propose a steganalytic algorithm for watermarks embedded by Cho et al.'s mean-based algorithm [1]. The main observation is that while in a clean model the means of Cho et al.'s normalized histogram bins are expected to follow a Gaussian distribution, in a marked model their distribution will be bimodal. The proposed algorithm estimates the number of
Yang, Ying   +3 more
openaire   +3 more sources

LEMON: Localized Editing With Mesh Optimization and Neural Shaders

open access: yesIEEE Open Journal of Signal Processing
We present LEMON, a mesh editing pipeline that integrates neural deferred shading with localized mesh optimization to enable fast and precise editing of polygonal meshes guided by text prompts.
Furkan Mert Algan   +4 more
doaj   +1 more source

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