Results 11 to 20 of about 9,825,333 (241)

Image Reconstruction Based on Novel Sets of Generalized Orthogonal Moments

open access: yesJournal of Imaging, 2020
In this work, we have presented a general framework for reconstruction of intensity images based on new sets of Generalized Fractional order of Chebyshev orthogonal Moments (GFCMs), a novel set of Fractional order orthogonal Laguerre Moments (FLMs) and ...
R. M. Farouk
doaj   +3 more sources

A New Set of 3D Shifted Fractional-Order Gegenbauer Descriptors for Volumetric Image Representation

open access: yesMathematics, 2022
Volumetric images have a three-dimensional (3D) view, in which viewers can examine their characteristics from any angle. The more accurate the digital representation of volumetric images, the more precise and valuable the assessment of what these images ...
Doaa Sami Khafaga   +3 more
doaj   +2 more sources

New fractional-order shifted Gegenbauer moments for image analysis and recognition

open access: yesJournal of Advanced Research, 2020
Orthogonal moments are used to represent digital images with minimum redundancy. Orthogonal moments with fractional-orders show better capabilities in digital image analysis than integer-order moments.
Khalid M. Hosny   +2 more
doaj   +3 more sources

Robust color image watermarking using multiple fractional-order moments and chaotic map

open access: yesMultimedia Tools and Applications, 2022
Robust watermarking is an effective method and a promising solution for securing and protecting the copyright of digital images. Moments and moment invariants have become popular tools for robust watermarking due to their geometric invariance and ...
Khalid Hosny, Mohamed Darwish
exaly   +2 more sources

Protecting Medical Images Using a Zero-Watermarking Approach Based on Fractional Racah Moments

open access: yesIEEE Access
This article introduces a new family of orthogonal moments, the fractional Racah moments (FrROMs), developed to meet the demands of copyright protection for medical images, a field requiring robust and secure methods that preserve the integrity of the ...
Karim El-Khanchouli   +7 more
doaj   +2 more sources

Novel Multi-Channel Fractional-Order Radial Harmonic Fourier Moments for Color Image Analysis

open access: yesIEEE Access, 2020
The classical radial harmonic Fourier moments (RHFMs) and the quaternion radial harmonic Fourier moments (QRHFMs) are gray-scale and color image descriptors. The radial harmonic functions with integer orders are not able to extract fine features from the
Khalid M. Hosny   +2 more
doaj   +1 more source

Efficient Compression of Fetal Phonocardiography Bio-Medical Signals for Internet of Healthcare Things

open access: yesIEEE Access, 2023
The development of Internet of Healthcare Things (IoHT) technology leads to high upgrades in monitor signal systems concerning healthcare. Battery life-saving is one of the biggest issues facing healthcare monitoring signal systems.
Gaber Hassan   +3 more
doaj   +1 more source

Fractional power NARX model identification using a harmony search algorithm [PDF]

open access: yes, 2012
A novel type of discrete-time fractional-powernonlinear autoregressive with exogenous input (FPNARX) modelis introduced for system identification, modeling and prediction.Parameter estimation of such a model is a nonlinear optimizationproblem.
Zhao, Yifan   +7 more
core   +1 more source

Fractional transformations of generalised functions [PDF]

open access: yes, 2009
A distributional theory of fractional transformations is developed. A constructive approach, based on the eigenfunction expansion method pioneered by A. H.
Lamb, Wilson   +2 more
core   +4 more sources

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