Results 1 to 10 of about 163,100 (319)

Approximation properties on Herz spaces

open access: yesRevista Integración, 2018
En este artículo consideramos los espacios de Herz Kαp,q , los cuales son una generalización natural de los  espacios de Lebesgue Lp . Demostramos algunas propiedades de aproximación tales como densidad del espacio C∞ c (R n), continuidad de la ...
Jhean E. Pérez-López
doaj   +1 more source

Multi-Scale Feature Interaction Network for Remote Sensing Change Detection

open access: yesRemote Sensing, 2023
Change detection (CD) is an important remote sensing (RS) data analysis technology. Existing remote sensing change detection (RS-CD) technologies cannot fully consider situations where pixels between bitemporal images do not correspond well on a one-to ...
Chong Zhang, Yonghong Zhang, Haifeng Lin
doaj   +1 more source

A topological analysis of p(x)-harmonic functionals in one-dimensional nonlocal elliptic equations

open access: yesAdvanced Nonlinear Studies
We consider a class of one-dimensional elliptic equations possessing a p(x)-harmonic functional as a nonlocal coefficient.
Goodrich Christopher S.
doaj   +1 more source

Search for the optimal smoothing method to improve S/N in cosmic maser spectra

open access: yesOpen Astronomy
In this article, a number of smoothing methods were investigated to enhance the signal-to-noise (S/N) ratio of diverse methanol maser spectral data, encompassing variations in signal strength, multiplicity of peaks, and spectral complexity.
Egliene Anete, Aberfelds Artis
doaj   +1 more source

Kriging-Weighted Laplacian Kernels for Grayscale Image Sharpening

open access: yesIEEE Access, 2022
Sharpening filters are used to highlight fine image details, including object edges. However, sharpening filters are very specific to different types of images as they may create undesired edge effects, over-highlight fine details, or emphasize noise ...
Tuan D. Pham
doaj   +1 more source

Optical Design of a Smart-Pixel-Based Optical Convolutional Neural Network

open access: yesOptics
We designed lens systems for a smart-pixel-based optical convolutional neural network (SPOCNN) using optical software to analyze image spread and estimate alignment tolerance for various kernel sizes.
Young-Gu Ju
doaj   +1 more source

Remarks on the Generalized Fractional Laplacian Operator

open access: yesMathematics, 2019
The fractional Laplacian, also known as the Riesz fractional derivative operator, describes an unusual diffusion process due to random displacements executed by jumpers that are able to walk to neighbouring or nearby sites, as well as perform excursions ...
Chenkuan Li   +3 more
doaj   +1 more source

Distribution of Distances between Elements in a Compact Set

open access: yesStats, 2019
In this article, we propose a review of studies evaluating the distribution of distances between elements of a random set independently and uniformly distributed over a region of space in a normed R -vector space (for example, point events generated
Solal Lellouche, Marc Souris
doaj   +1 more source

Method of multilayer object sectioning based on a light scattering model

open access: yesКомпьютерная оптика, 2023
We discuss a problem of reconstructing (sectioning) multilayer object images in observed images obtained by focusing the imaging system on each layer and containing spurious blurry images of neighboring layers.
S.D. Bazhitov   +3 more
doaj   +1 more source

On Restoration of the Blur Parameter in the Optical Sectioning Problem

open access: yesСовременные информационные технологии и IT-образование, 2022
The article considers the problem of finding the blur parameter between two images for the optical sectioning problem, in which the blur model has a natural optical origin associated with the use of incoherent white light as a radiation source in the ...
Sergey Bazhitov
doaj   +1 more source

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