Results 61 to 70 of about 224 (152)

Sliced Ridgelet Transform for Image Denoising

open access: yesIOSR Journal of Computer Engineering, 2013
Image denoising based on ridgelet transforms gives better result in image denoising than standard wavelet transforms. In this research work, the researcher introduces a new approach for image denoising that is based on ridgelets computed in a localized manner and that is computationally less intensive than curvelets, but similar donising performance ...
openaire   +1 more source

Multiscaled wavelet transforms, ridgelet transforms, and Radon transforms on the space of matrices

open access: yes, 2004
Let $M$ be the space of real $n\times m$ matrices which can be identified with the Euclidean space $R^{nm}$. We introduce continuous wavelet transforms on $M$ with a multivalued scaling parameter represented by a positive definite symmetric matrix. These transforms agree with the polar decomposition on $M$ and coincide with classical ones in the rank ...
Olafsson, G., Ournycheva, E., Rubin, B.
openaire   +2 more sources

Multi-modal image sharpening in fourier transform infrared (FTIR) microscopy. [PDF]

open access: yesAnalyst, 2021
Mankar R   +5 more
europepmc   +1 more source

Ridgelet Transforms of Functions in Banach lattices

open access: yes
We establish a reproducing formula for the ridgelet transform on $\mathbb{R}^n$ in the framework of Banach lattices introduced in a recent paper by Nieraeth. Our approach is based on the $k$-plane Radon transform and a wavelet-type reconstruction operator acting on functions defined on the Grassmannian of $k$-dimensional affine planes.
Izuki, Mitsuo   +3 more
openaire   +2 more sources

GAN-Based Approach for Diabetic Retinopathy Retinal Vasculature Segmentation. [PDF]

open access: yesBioengineering (Basel), 2023
Sebastian A   +3 more
europepmc   +1 more source

Improved ECG Watermarking Technique Using Curvelet Transform. [PDF]

open access: yesSensors (Basel), 2020
Goyal LM   +6 more
europepmc   +1 more source

Multimodality Medical Image Fusion Using Clustered Dictionary Learning in Non-Subsampled Shearlet Transform. [PDF]

open access: yesDiagnostics (Basel), 2023
Diwakar M   +7 more
europepmc   +1 more source

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