Results 51 to 60 of about 2,269,164 (264)

Robust Geometry Estimation using the Generalized Voronoi Covariance Measure [PDF]

open access: yes, 2015
The Voronoi Covariance Measure of a compact set K of R^d is a tensor-valued measure that encodes geometric information on K and which is known to be resilient to Hausdorff noise but sensitive to outliers. In this article, we generalize this notion to any
Cuel, Louis   +3 more
core   +3 more sources

Color-Based Image Retrieval Using Perceptually Modified Hausdorff Distance

open access: yesEURASIP Journal on Image and Video Processing, 2008
In most content-based image retrieval systems, the color information is extensively used for its simplicity and generality. Due to its compactness in characterizing the global information, a uniform quantization of colors, or a histogram, has been the ...
Bo Gun Park, Kyoung Mu Lee, Sang Uk Lee
doaj   +2 more sources

Realizing in-house algorithm-driven free fibula flap set up within 24 hours: a pilot study evaluating accuracy with open-source tools

open access: yesFrontiers in Surgery, 2023
ObjectiveThis study aims to critically evaluate the effectiveness and accuracy of a time safing and cost-efficient open-source algorithm for in-house planning of mandibular reconstructions using the free osteocutaneous fibula graft.
Andreas Vollmer   +12 more
doaj   +1 more source

Similarity Analysis between Contour Lines by Remotely Piloted Aircraft and Topography Using Hausdorff Distance: Application on Contour Planting

open access: yesRemote Sensing, 2022
Contour planting minimizes soil degradation, making agricultural production more sustainable. Currently, geotechnologies can provide more precise and fast data from relief than rudimentary data acquisition for agricultural management. Thus, the objective
Alexandre Araujo Ribeiro Freire   +5 more
doaj   +1 more source

On the relationship between the Hausdorff distance and matrix distances of ellipsoids

open access: yesLinear Algebra and its Applications, 1983
AbstractThe space of ellipsoids may be metrized by the Hausdorff distance or by the sum of the distance between their centers and a distance between matrices. Various inequalities between metrics are established. It follows that the square root of positive semidefinite symmetric matrices satisfies a Lipschitz condition, with a constant which depends ...
Jean-Louis Goffin, Alan J. Hoffman
openaire   +3 more sources

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

On the regularity of the Hausdorff distance between spectra of perturbed magnetic Hamiltonians

open access: yes, 2012
We study the regularity properties of the Hausdorff distance between spectra of continuous Harper-like operators. As a special case we obtain H\"{o}lder continuity of this Hausdorff distance with respect to the intensity of the magnetic field for a large
B Helffer   +21 more
core   +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

Cost Estimation for Voltage Sag Control Based on Multidimensional Characteristics and Hausdorff Distance

open access: yesZhongguo dianli, 2021
Voltage sag control is non-standardized. Due to the lack of user-side details, it is hard to estimate the control capacity, which frequently causes excessive or inadequate sag controls.
Chengyu LU   +4 more
doaj   +1 more source

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