Results 31 to 40 of about 8,755 (208)

On the Hausdorff distance between the shifted Heaviside step function and the transmuted Stannard growth function

open access: yesBiomath, 2016
In this paper we study the one-sided Hausdorff distance betweenВ the shifted Heaviside step--function and the transmuted Stannard growth function. Precise upper and lower bounds for the Hausdorff distance have been obtained. We present a software module (
Anton Iliev Iliev   +2 more
doaj   +1 more source

The topology of theρ-hausdorff distance

open access: yesAnnali di Matematica Pura ed Applicata, 1991
As the authors say ``the Hausdorff distance... works well as long as the sets lie in a bounded region. In many applications one has to deal with unbounded sets or with collections of bounded sets which are not uniformly bounded''. To deal with these situations this paper builds on earlier work of two of the authors and others and is a comprehensive ...
Attouch, Hedy   +2 more
openaire   +3 more sources

The Gromov–Hausdorff distance between spheres

open access: yesGeometry & Topology, 2023
* We made some structural changes for better ...
Lim, Sunhyuk   +2 more
openaire   +2 more sources

Method and Algorithms for Computing Fuzzy Fréchet and Hausdorff Distance

open access: yesMathematics
Accurate image similarity assessment is a key problem in computer vision, particularly in segmentation and classification problems. Classical Hausdorff and Fréchet metrics provide pointwise distance values and do not allow similarity to be evaluated in ...
Mykhailo Zarichnyi   +3 more
doaj   +1 more source

Quantized Gromov–Hausdorff distance

open access: yesJournal of Functional Analysis, 2006
A quantized metric space is a matrix order unit space equipped with an operator space version of Rieffel's Lip-norm. We develop for quantized metric spaces an operator space version of quantum Gromov-Hausdorff distance. We show that two quantized metric spaces are completely isometric if and only if their quantized Gromov-Hausdorff distance is zero. We
openaire   +2 more sources

Cell Segmentation Beyond 2D—A Review of the State‐of‐the‐Art

open access: yesAdvanced Intelligent Discovery, EarlyView.
Cell segmentation underpins many biological image analysis tasks, yet most deep learning methods remain limited to 2D despite the inherently 3D nature of cellular processes. This review surveys segmentation approaches beyond 2D, comparing 2.5D and fully 3D methods, analyzing 31 models and 32 volumetric datasets, and introducing a unified reference ...
Fabian Schmeisser   +6 more
wiley   +1 more source

Some properties of the Blumberg's hyper-log-logistic curve

open access: yesBiomath, 2018
The paper considers the sigmoid function definedthrough the hyper-log-logistic model introduced by Blumberg. We study the Hausdorff distance of this sigmoid to the Heaviside function, which characterises the shape of switching from 0 to 1.
Roumen Anguelov   +2 more
doaj   +1 more source

BMPCQA: Bioinspired Metaverse Point Cloud Quality Assessment Based on Large Multimodal Models

open access: yesAdvanced Intelligent Systems, EarlyView.
This study presents a bioinspired metaverse point cloud quality assessment metric, which simulates the human visual evaluation process to perform the point cloud quality assessment task. It first extracts rendering projection video features, normal image features, and point cloud patch features, which are then fed into a large multimodal model to ...
Huiyu Duan   +7 more
wiley   +1 more source

Real-time image matching for navigation system based on genetic algorithm

open access: yesTongxin xuebao, 2008
In order to meet requirement that scene matching aided navigation system must get aircraft position error real-timely, an image matching algorithm based on genetic algorithm and weighted Hausdorff distance was proposed.
LENG Xue-fei1, LIU Jian-ye2, XIONG Zhi2
doaj   +2 more sources

Almost periodic functions on Hausdorff almost periodic time scales

open access: yesAdvances in Difference Equations, 2017
This paper is devoted to generalizing the notion of almost periodic functions on time scales. We introduce a new class of almost periodic time scales called Hausdorff almost periodic time scales by using the Hausdorff distance and propose a more general ...
Desheng Ji, Liu Yang, Jimin Zhang
doaj   +1 more source

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