Results 31 to 40 of about 42,065 (261)

Remarks on fixed point assertions in digital topology, 8

open access: yesApplied General Topology
This paper continues a series in which we study deficiencies in previously published works concerning fixed point assertions for digital images.
Laurence Boxer
doaj   +1 more source

Remarks on fixed point assertions in digital topology, 4

open access: yesApplied General Topology, 2020
We continue the work of [4, 2, 3], in which we discuss published assertions that are incorrect or incorrectly proven; that are severely limited or reduce to triviality; or that we improve upon.
Laurence Boxer
doaj   +1 more source

Topological Digital Topology [PDF]

open access: yes, 2003
The usefulness of topology in science and mathematics means that topological spaces must be studied, and computers should be used in this study. We discuss how many useful spaces (including all compact Hausdorff spaces) can be approximated by finite spaces, and these finite spaces are completely determined by their specialization orders.
openaire   +1 more source

An attribute-based image segmentation method

open access: yesMaterials Research, 1999
This work addresses a new image segmentation method founded on Digital Topology and Mathematical Morphology grounds. The ABA (attribute based absorptions) transform can be viewed as a region-growing method by flooding simulation working at the scale of ...
M.C. de Andrade   +2 more
doaj   +1 more source

Improved Topological Approximations by Digitization [PDF]

open access: yes, 2019
Čech complexes are useful simplicial complexes for computing and analyzing topological features of data that lies in Euclidean space. Unfortunately, computing these complexes becomes prohibitively expensive for large-sized data sets even for medium-to-low dimensional data.
Choudhary, Aruni   +2 more
openaire   +3 more sources

Remarks on the Preservation of the Almost Fixed Point Property Involving Several Types of Digitizations

open access: yesMathematics, 2019
This paper explores a certain relationship between the almost fixed point property (AFPP for short) of a compact and n-dimensional Euclidean space and that of its digitized space.
Sang-Eon Han
doaj   +1 more source

Fuzzy digital topology

open access: yesInformation and Control, 1979
Topological relationships among parts of a digital picture, such as connectedness and surroundedness, play an important role in picture analysis and description. This paper generalizes these concepts to fuzzy subsets, and develops some of their basic properties.
openaire   +1 more source

An alternative digital topology

open access: yesElectronic Notes in Discrete Mathematics, 2003
Abstract We define a new topology on Z2 with respect to which, in difference to the commonly used Khalimsky topology, the curves fulfilling an analogy of the Jordan curve theorem can turn at the acute angle π/4. We also present a natural graph on Z2 all circuits in which fulfill the analogy of the Jordan curve theorem with respect to the topology ...
openaire   +1 more source

Digital Imaging: A Unified Topological Framework [PDF]

open access: yesJournal of Mathematical Imaging and Vision, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mazo, Loïc   +3 more
openaire   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

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