Results 11 to 20 of about 2,258,189 (282)
Shape theory and mathematical design of a general geometric kernel through regular stratified objects [PDF]
, 2000 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.This dissertation focuses on the mathematical design of a unified shape kernel for geometric computing, with possible applications to computer aided design (
Gomes, Abel Joao Padrao
core +7 more sources
Geometric feature distributions for shape representation and recognition. [PDF]
, 1994 One of the fundamental problems in computer vision is the identification of objects from their shape. The research reported in this thesis is directed toward the development of a scheme for representing the shape of an object which allows it to be ...
Evans, Alun C
core +6 more sources
Shape Sensitive Geometric Monitoring [PDF]
IEEE Transactions on Knowledge and Data Engineering, 2012 An important problem in distributed, dynamic databases is to continuously monitor the value of a function defined on the nodes, and check that it satisfies some threshold constraint. We introduce a monitoring method, based on a geometric interpretation of the problem, which enables to define local constraints at the nodes. It is guaranteed that as long
Daniel Keren +3 more
openaire +3 more sources
Lattice-based geometric shaping [PDF]
2020 European Conference on Optical Communications (ECOC), 2020 Geometrically shaped multidimensional constellations with more than 1028 points are simulated using fast and low-complexity algorithms without any look-up tables to store the constellation points. At the same symbol error rate, more than 78% and 114% reach improvement are demonstrated compared with 4- and 16-QAM, respectively.
Ali Mirani +2 more
openaire +1 more source
Geometric Aspects of Shape Optimization
The Journal of Geometric Analysis, 2023 AbstractWe present a review of known results in shape optimization from the point of view of Geometric Analysis. This paper is devoted to the mathematical aspects of the shape optimization theory. We focus on the theory of gradient flows of objective functions and their regularizations.
Pavel I. Plotnikov, Jan Sokolowski
openaire +2 more sources
Geometric reasoning via internet crowdsourcing [PDF]
, 2009 The ability to interpret and reason about shapes is a peculiarly human capability that has proven difficult to reproduce algorithmically. So despite the fact that geometric modeling technology has made significant advances in the representation, display ...
Yan, X.T. +7 more
core +4 more sources
Learning to Assemble Geometric Shapes
Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence, 2022 Assembling parts into an object is a combinatorial problem that arises in a variety of contexts in the real world and involves numerous applications in science and engineering. Previous related work tackles limited cases with identical unit parts or jigsaw-style parts of textured shapes, which greatly mitigate combinatorial challenges of the problem ...
Jinhwi Lee +4 more
openaire +3 more sources
Exploring Geometric Shapes with Touch [PDF]
, 2009 We propose a new technique to help users to explore geometric shapes without vision. This technique is based on a guidance using directional cues with a pin array. This is an alternative to the usual technique that consists of raising the pins corresponding to dark pixels around the cursor.
Thomas Pietrzak +4 more
openaire +2 more sources
Tropical Geometric Variation of Tree Shapes
Discrete & Computational Geometry, 2022 AbstractWe study the behavior of phylogenetic tree shapes in the tropical geometric interpretation of tree space. Tree shapes are formally referred to as tree topologies; a tree topology can also be thought of as a tree combinatorial type, which is given by the tree’s branching configuration and leaf labeling.
Bo Lin 0008 +2 more
openaire +2 more sources
Role of Geometric Shape in Chiral Optics [PDF]
Symmetry, 2020 The distinction of chiral and mirror symmetric objects is straightforward from a geometrical point of view. Since the biological as well as the optical activity of molecules strongly depend on their handedness, chirality has recently attracted high interest in the field of nano-optics. Various aspects of associated phenomena including the influences of
Philipp Gutsche +5 more
openaire +4 more sources