Results 31 to 40 of about 11,065 (211)

Linear Methods for Image Interpolation

open access: yesImage Processing On Line, 2011
We discuss linear methods for interpolation, including nearest neighbor, bilinear, bicubic, splines, and sinc interpolation. We focus on separable interpolation, so most of what is said applies to one-dimensional interpolation as well as N-dimensional ...
Pascal Getreuer
doaj   +1 more source

Comparison of interpolation methods for raster images scaling [PDF]

open access: yesНаучно-технический вестник Брянского государственного университета, 2017
The article is devoted to the problem of efficient scaling of raster images. We consider some negative effects, related with scaling of raster images. Besides, we consider an analysis of several methods that are used to increase sizes of ras-ter images ...
Trubakov A.O., Seleykovich M.O.
doaj   +1 more source

Performance of global look-up table strategy in digital image correlation with cubic B-spline interpolation and bicubic interpolation

open access: yesTheoretical and Applied Mechanics Letters, 2016
Global look-up table strategy proposed recently has been proven to be an efficient method to accelerate the interpolation, which is the most time-consuming part in the iterative sub-pixel digital image correlation (DIC) algorithms.
Zhiwei Pan   +5 more
doaj   +1 more source

Single image super resolution based on multi-scale structure and non-local smoothing

open access: yesEURASIP Journal on Image and Video Processing, 2021
In this paper, we propose a hybrid super-resolution method by combining global and local dictionary training in the sparse domain. In order to present and differentiate the feature mapping in different scales, a global dictionary set is trained in ...
Wenyi Wang   +4 more
doaj   +1 more source

FRESH – FRI-based single-image super-resolution algorithm [PDF]

open access: yes, 2016
In this paper, we consider the problem of single image super-resolution and propose a novel algorithm that outperforms state-of-the-art methods without the need of learning patches pairs from external data sets.
Dragotti, P, Wei, X
core   +1 more source

Spurious PIV Vector Correction Using Linear Stochastic Estimation

open access: yesFluids, 2019
Techniques for the experimental determination of velocity fields such as particle image velocimetry (PIV) can often be hampered by spurious vectors or sparse regions of measurement which may occur due to a number of reasons.
Daniel Butcher, Adrian Spencer
doaj   +1 more source

Spatial and Angular Resolution Enhancement of Light Fields Using Convolutional Neural Networks [PDF]

open access: yes, 2018
Light field imaging extends the traditional photography by capturing both spatial and angular distribution of light, which enables new capabilities, including post-capture refocusing, post-capture aperture control, and depth estimation from a single shot.
Gul, M. Shahzeb Khan   +1 more
core   +2 more sources

Image Interpolation Based on Spiking Neural Network Model

open access: yesApplied Sciences, 2023
Image interpolation is used in many areas of image processing. It is seen that many techniques developed to date have been successful in both protecting edges and increasing image quality.
Mürsel Ozan İncetaş
doaj   +1 more source

Image Interpolation Using a Rational Bi-Cubic Ball

open access: yesMathematics, 2019
: This study deals with the application of new rational bi-cubic Ball function with six parameters in image interpolation, especially for the grayscale image.
Nur Atiqah Binti Zulkifli   +5 more
doaj   +1 more source

Image Interpolation with Regional Gradient Estimation

open access: yesApplied Sciences, 2022
This paper proposes an image interpolation method with regional gradient estimation (GEI) to solve the problem of the nonlinear interpolation method not sufficiently considering non-edge pixels. First, the approach presented in this paper expanded on the
Zuhang Jia, Qingjiu Huang
doaj   +1 more source

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