Results 91 to 100 of about 188,550 (196)

A convex-valued selection theorem with a non-separable Banach space

Advances in Nonlinear Analysis, 2018
In the spirit of Michael’s selection theorem [6, Theorem 3.1”’], we consider a nonempty convex-valued lower semicontinuous correspondence φ:X→2Y{\varphi:X\to 2^{Y}}.
Gourdel Pascal, Mâagli Nadia
doaj   +1 more source

3D Deformable Object Matching Using Graph Neural Networks

Studia Universitatis Babes-Bolyai: Series Informatica
Considering the current advancements in computer vision it can be observed that most of it is focused on two-dimensional imagery. This includes problems such as classification, regression, and the lesser-known object matching problem.
Mihai-Adrian LOGHIN
doaj   +1 more source

Unsupervised Nonlinear Hyperspectral Unmixing Based on Bilinear Mixture Models via Geometric Projection and Constrained Nonnegative Matrix Factorization

Remote Sensing, 2018
Bilinear mixture model-based methods have recently shown promising capability in nonlinear spectral unmixing. However, relying on the endmembers extracted in advance, their unmixing accuracies decrease, especially when the data is highly mixed.
Bin Yang, Bin Wang, Zongmin Wu
doaj   +1 more source

Surface normals and barycentric coordinates [PDF]

Mathematical Problems in Engineering, 1996
The normal to a triangular parametric surface is investigated where the parameters used are barycentric coordinates. Formulae for the normal are obtained for non‐rational and rational surfaces.
openaire   +1 more source

Numerical modelling of major planets movement on the new interaction principle basis

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2011
Numerical integration of the equations of movement of major planets, on the basis of a new principle of interaction is spent. Elements of orbits of major planets on large time interval (1602-2200) are calculated. Results of calculations are compared with
Anatolii F Zausaev
doaj  

Barycentric coordinates for convex sets

, 2004
In this paper we provide an extension of barycentric coordinates from simplices to arbitrary convex sets. Barycentric coordinates over convex 2D polygons have found numerous applications in various fields as they allow smooth interpolation of data ...
Scott Schaefer, Joe Warren, Mathieu Desbrun, Anil N. Hirani   +3 more
core  

Volume-preserving deformation using generalized barycentric coordinates [PDF]

, 2010
The cage-based deformation of a 3D object through generalized barycentric coordinates is a simple, e fficient, effective and hence widely used shape manipulation scheme.
Vinacua Pla, Álvaro, Brunet Crosa, Pere, Cerveró Abelló, Maria Àngels   +2 more
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Computer-Oriented Mathematical Modeling of Multiparameter Converters Using Quadratic, Cubic, and N-Dimensional Interpolation

Proceedings of the International Conference on Applied Innovations in IT
The current stage of scientific and technological progress in all areas of industrial production and management is characterized by the introduction of new information technologies that determine the increased integration of all automated equipment types,
Miraziz Sagatov, Sitora Nizamova
doaj   +1 more source

Exact solution of an inverse problem for affine images of IFS attractors

Fixed Point Theory and Algorithms for Sciences and Engineering
A contractive iterated function system (IFS) defined on a complete metric space X possesses a unique compact attractor F ⊂ X $F\subset X$ . Obtaining the transformations of F is generally nontrivial, due to the nature of construction of F.
Elena Hadzieva
doaj   +1 more source

Distributed sensor localization using barycentric coordinates

, 2020
-In this paper, we review our work on distributed sensor localization using barycentric coordinates. We present an algorithm for localization in m-dimensional Euclidean spaces. The algorithm is distributed and requires at least m+1 anchors.
Soummya Kar, Usman A Khan, José M F Moura   +2 more
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