Results 61 to 70 of about 256 (167)
The Ridgelet Transform and Quasiasymptotic Behavior of Distributions [PDF]
, 2015 We characterize the quasiasymptotic behavior of distributions in terms of a Tauberian theorem for ridgelet transforms.
Kostadinova, Sanja +3 more
openaire +2 more sources
A Note on Fractional Gabor Systems in L2(ℝ)
Journal of Function Spaces, Volume 2024, Issue 1, 2024.In this article, fractional Gabor frames in L2(ℝ) are defined and studied. Also, a finite linear combination of fractional Gabor frames for L2(ℝ) is discussed. It is proved that under certain conditions, a finite linear combination of fractional Gabor frames is a fractional Gabor frame for L2(ℝ).
Dolly Jain +3 more
wiley +1 more source
A Novel Optimized Semi-Blind Scheme for Color Image Watermarking
IEEE Access, 2020 Image watermarking is a robust solution for solving key issues like copyright protection and proof of ownership of digital data. Existing schemes of image watermarking mostly used grayscale or binary images as embedded watermarks, while only a few ...
Adnan Mustafa Cheema +2 more
doaj +1 more source
Systems and Soft ComputingThe development of telemedicine needs strong solutions to prevent manipulation of medical data while maintaining accurate diagnosis. Current watermarking methods aim to establish an effective compromise between robustness, imperceptibility, and payload ...
Ahmed Saïd Beggari +4 more
doaj +1 more source
A Novel Framework for Financial Cybersecurity and Fraud Detection Using XAI-RNN-SGRU
IEEE AccessCyber threats involve unauthorized access, alteration, or deletion of private information, extortion, and disruption of business operations. Traditional network security methods need more scalability, data protection, and difficulty detecting advanced ...
Smarajit Ghosh
doaj +1 more source
Blind image separation using pyramid technique
EURASIP Journal on Image and Video Processing, 2018 Signal and image separation is an important processing step for accurate image reconstruction, which is increasingly applied to many medical imaging applications and communication systems.
M. Y. Abbass, HyungWon Kim
doaj +1 more source
3-D Discrete Analytical Ridgelet Transform [PDF]
IEEE Transactions on Image Processing, 2006 In this paper, we propose an implementation of the 3-D Ridgelet transform: the 3-D discrete analytical Ridgelet transform (3-D DART). This transform uses the Fourier strategy for the computation of the associated 3-D discrete Radon transform. The innovative step is the definition of a discrete 3-D transform with the discrete analytical geometry theory ...
Helbert, David +2 more
openaire +4 more sources
A Case Study on Contourlet and Ridgelet in Denoising Medical Images
Tạp chí Khoa học Đại học Mở Thành phố Hồ Chí Minh - Kỹ thuật và Công nghệ, 2013 A special member of the transforming of multiscale in the frequency domain has been proposed and developed in the last few years ago. We mention here some transformations after X-let generation such as: Ridgelet, Contourlet, Bandelet [1,2,3,4 ...
Trương Hoàng Vinh
doaj
On the subexponentiality of the ridgelet transform
Comptes Rendus. Mathématique, 2014 We show that we can consider the ridgelet transform for Wiener functionals as a subexponential random variable. We give an application of this result to random walks.
openaire +1 more source
The finite ridgelet transform for image representation
IEEE Transactions on Image Processing, 2003 The ridgelet transform was introduced as a sparse expansion for functions on continuous spaces that are smooth away from discontinuities along lines. We propose an orthonormal version of the ridgelet transform for discrete and finite-size images. Our construction uses the finite Radon transform (FRAT) as a building block.
Minh N. Do, Martin Vetterli
openaire +4 more sources