Results 1 to 10 of about 55,162 (247)

SLIC Based Digital Image Enlargement

open access: yes, 2018
Low resolution image enhancement is a classical computer vision problem. Selecting the best method to reconstruct an image to a higher resolution with the limited data available in the low-resolution image is quite a challenge.
Amara, M. Z. F.   +2 more
core   +1 more source

An integrated approach to image quality: comparative analysis of bilinear and nearest neighbor interpolation [PDF]

open access: yesBig Data and Computing Visions
Pixel transitions are critical in image processing, largely depending on interpolation methods to ensure smoothness and clarity. This work focuses on two widely used image interpolation techniques: nearest neighbor interpolation and bilinear ...
Wusat Ullah   +3 more
doaj   +1 more source

An Efficient Second-Order Accurate and Continuous Interpolation for Block-Adaptive Grids

open access: yes, 2014
In this paper we present a second-order and continuous interpolation algorithm for cell-centered adaptive-mesh-refinement (AMR) grids. Continuity requirement poses a non-trivial problem at resolution changes. We develop a classification of the resolution
Borovikov, Dmitry   +2 more
core   +1 more source

Effect of zooming on texture features of ultrasonic images

open access: yesCardiovascular Ultrasound, 2006
Background Unstable carotid plaques on subjective, visual, assessment using B-mode ultrasound scanning appear as echolucent and heterogeneous. Although previous studies on computer assisted plaque characterisation have standardised B-mode images for ...
Kyriacou Efthyvoulos   +4 more
doaj   +1 more source

On three-dimensional Hall-magnetohydrodynamic equations with partial dissipation

open access: yesBoundary Value Problems, 2022
In this paper, we address the Hall-MHD equations with partial dissipation. Applying some important inequalities (such as the logarithmic Sobolev inequality using BMO space, bilinear estimates in BMO space, Young’s inequality, cancellation property ...
Baoying Du
doaj   +1 more source

Application of generative adversarial neural networks for the formation of databases in scanning tunneling microscopy

open access: yesКомпьютерная оптика, 2023
We discuss the development of a technique for automatic generation of databases of images obtained with a scanning tunneling microscope. An analysis of state-of-the-art methods and means of automatic processing of images obtained from probe and electron ...
T.E. Shelkovnikova   +2 more
doaj   +1 more source

On the relative merits of interpolation schemes for the immersed boundary method: a case study with the heat equation

open access: yesTrends in Computational and Applied Mathematics
In this work, three implementation options for the ghost cell immersed boundary method are compared. These options are alternatives to a rather common implementation of the method that is susceptible to numerical instability in the calculation of the
Willian Carlos Lesinhovski   +3 more
doaj   +1 more source

Locking Free Quadrilateral Continuous/Discontinuous Finite Element Methods for the Reissner-Mindlin Plate

open access: yes, 2013
We develop a finite element method with continuous displacements and discontinuous rotations for the Mindlin-Reissner plate model on quadrilateral elements.
Hansbo, Peter, Larson, Mats G.
core   +1 more source

Quality Evaluation of Chromatic Interpolation Algorithms for Image Acquisition System

open access: yesJournal of Aerospace Technology and Management, 2016
The main goal of the Libertad 2 mission is to take images of the Earth’s surface in the visible spectrum with a multispectral sensor and send them as a Bayer array.
Diana Carolina Morón Hernández   +3 more
doaj   +3 more sources

Super Resolution Reconstruction of Images Based on Interpolation and Full Convolutional Neural Network and Application in Medical Fields

open access: yesIEEE Access, 2019
The traditional image to enlarge algorithms include nearest neighbor interpolation, bilinear interpolation and high-order interpolation. In order to achieve super-resolution reconstruction of images, a new algorithm combining traditional algorithms and ...
Na Sun, Huina Li
doaj   +1 more source

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