Results 151 to 160 of about 13,640 (282)

Hierarchical Optimization of the As‐Rigid‐As‐Possible Energy

open access: yesComputer Graphics Forum, EarlyView.
Abstract The As‐Rigid‐As‐Possible (ARAP) energy [SA07] has become a versatile ingredient in various geometry processing and machine learning methods. The classic method for its minimization is a block coordinate descent, alternating between local rotation estimation and a global linear solve, which converges slowly for large problem instances.
Hendrik Meyer, Bernd Bickel, Marc Alexa
wiley   +1 more source

Directed graph Laplacian applied on spectral clustering

open access: yes, 2021
The graph Laplacian is a tool which is commonly used in different applications, amongst which spectral clustering. This report contains a research in different def- initions for the graph Laplacian applied on directed graphs, since it is rarely used in ...
Şavli, Yasemin (author)
core  

Transformation of spectra of graph Laplacians

open access: yesRocky Mountain Journal of Mathematics, 2010
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Embedding Optimization of Layouts via Distortion Minimization

open access: yesComputer Graphics Forum, EarlyView.
Abstract Given an embedding of a layout in the surface of a target mesh, we consider the problem of optimizing the embedding geometrically. Layout embeddings partition the surface into multiple disk‐like patches, making them particularly useful for parametrization and remeshing tasks, such as quad‐remeshing, since these problems can then be solved on ...
A. Heuschling, I. Lim, L. Kobbelt
wiley   +1 more source

Optimization of the graph laplacian

open access: yes
Graph signal processing (GSP) has emerged as a powerful framework for analyzing structured data in applications such as social networks, transportation systems, and epidemiology.
Zeng, Weiyu
core  

Generative Cutout Animation

open access: yesComputer Graphics Forum, EarlyView.
Abstract Cutout animation is one of the earliest forms of animation, and to this day remains a popular technique featured in numerous films including Monty Python and South Park series. Most computer animation systems, however, focus on different styles, including cel animation, making cutout animation somewhat underexplored.
Ivan Puhachov   +3 more
wiley   +1 more source

On the Laplacian and signless Laplacian spectrum of a graph with k pairwise co-neighbor vertices

open access: yes, 2012
Consider the Laplacian and signless Laplacian spectrum of a graph G of order n, with k pairwise co-neighbor vertices. We prove that the number of shared neighbors is a Laplacian and a signless Laplacian eigenvalue of G with multiplicity at least k− 1.
Martins, Enide A.   +6 more
core   +1 more source

Topology‐based Visual Analysis of Hydrothermal Plumes

open access: yesComputer Graphics Forum, EarlyView.
Abstract Hydrothermal plumes are turbulent structures of intense heat and mineral smoke that rise and disperse into the deep ocean. Existing models generally characterize these systems as a single axisymmetric plume originating from a point source. However, this assumption breaks down in weakly venting, spatially distributed systems, where low‐flux ...
Adhitya Kamakshidasan   +3 more
wiley   +1 more source

Geometry‐Aware Alignment and Comparison of Hierarchical Morse Complexes with Applications

open access: yesComputer Graphics Forum, EarlyView.
Abstract Scalar fields derived from 3D X‐ray CT scans of samples undergoing ex situ processes, such as thermal aging, chemical etching, or mechanical stress, pose unique challenges for characterizing similarities and differences across acquisitions. Typically, a sample A (source) is imaged, removed, and subjected to experimental conditions that alter ...
Aniketh Venkat   +3 more
wiley   +1 more source

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