Results 11 to 20 of about 266,674 (332)

Shape correspondence for cel animation based on a shape association graph and spectral matching

open access: yesComputational Visual Media, 2023
We present an effective spectral matching method based on a shape association graph for finding region correspondences between two cel animation keyframes.
Shaolong Liu   +4 more
doaj   +1 more source

Geometric Tomography with Topological Guarantees [PDF]

open access: yesDiscrete & Computational Geometry, 2010
We consider the problem of reconstructing a compact 3-manifold (with boundary) embedded in $\mathbb{R}^3$ from its cross-sections $\mathcal S$ with a given set of cutting planes $\mathcal P$ having arbitrary orientations. Using the obvious fact that a point $x \in \mathcal P$ belongs to the original object if and only if it belongs to $\mathcal S$, we ...
Amini, Omid   +2 more
openaire   +5 more sources

AUTOMATIC TOPOLOGY DERIVATION FROM IFC BUILDING MODEL FOR IN-DOOR INTELLIGENT NAVIGATION [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
With the goal to achieve an accuracy navigation within the building environment, it is critical to explore a feasible way for building the connectivity relationships among 3D geographical features called in-building topology network. Traditional topology
S. J. Tang   +3 more
doaj   +1 more source

The Problems of Dimension Four, and Some Ramifications

open access: yesMathematics, 2023
In this short note, I present a very quick review of the peculiarities of dimension four in geometric topology. I consider, in particular, the role of geometric simple connectivity (which means handle decomposition without handles of index one) for both ...
Valentin Poénaru
doaj   +1 more source

Methodology of evaluation and correction of geometric data topology in QGIS software [PDF]

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2018
Geographical Information Systems (GIS) has revolutionised the process of collecting and processing data, therefore, more and more data recorded in an analogue form are transformed into the digital format.
Anita Kukulska   +3 more
doaj   +1 more source

Emergence of Geometric Turing Patterns in Complex Networks

open access: yesPhysical Review X, 2023
Turing patterns, arising from the interplay between competing species of diffusive particles, have long been an important concept for describing nonequilibrium self-organization in nature and have been extensively investigated in many chemical and ...
Jasper van der Kolk   +4 more
doaj   +1 more source

A localization and navigation method for underground mine autonomous driving based on local geometric topology map

open access: yesGong-kuang zidonghua, 2023
Unmanned driving technology has enormous advantages in improving efficiency, saving costs and reducing safety hazards. In the current implementation of localization and navigation solutions in underground environments, there are problems of ...
LIU Shijie, ZOU Yuan, ZHANG Xudong
doaj   +1 more source

Compact connected components in relative character varieties of punctured spheres [PDF]

open access: yesÉpijournal de Géométrie Algébrique, 2021
We prove that some relative character varieties of the fundamental group of a punctured sphere into the Hermitian Lie groups $\mathrm{SU}(p,q)$ admit compact connected components.
Nicolas Tholozan, Jérémy Toulisse
doaj   +1 more source

Fragile topology in line-graph lattices with two, three, or four gapped flat bands

open access: yesPhysical Review Research, 2020
The geometric properties of a lattice can have profound consequences on its band spectrum. For example, symmetry constraints and geometric frustration can give rise to topologicially nontrivial and dispersionless bands, respectively.
Christie S. Chiu   +4 more
doaj   +1 more source

Non-Signalized Intersection Network Management With Connected and Automated Vehicles

open access: yesIEEE Access, 2020
Road network control is challenging but critical in enhancing urban traffic. This paper proposes a management method for a road network with non-signalized intersections in the connected-vehicle environment, which coordinates connected and automated ...
Xiaolong Chen   +5 more
doaj   +1 more source

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