Results 91 to 100 of about 5,751 (196)

Image Decomposition and Separation Using Sparse Representations: An Overview [PDF]

open access: yes, 2010
This paper gives essential insights into the use of sparsity and morphological diversity in image decomposition and source separation by reviewing our recent work in this field.
Bobin, Jérôme   +3 more
core  

Extended object reconstruction in adaptive-optics imaging: the multiresolution approach

open access: yes, 2012
We propose the application of multiresolution transforms, such as wavelets (WT) and curvelets (CT), to the reconstruction of images of extended objects that have been acquired with adaptive optics (AO) systems.
Gallé, Roberto Baena   +2 more
core   +1 more source

CURVELET-BASED FREQUENCY-AWARE FEATURE ENHANCEMENT FOR DEEPFAKE DETECTION

open access: yesScience Journal of University of Zakho
The proliferation of sophisticated generative models has significantly advanced the realism of synthetic facial content, known as deepfakes, raising serious concerns about digital trust.
Salar Adel Sabri, Ramadhan J Mstafa
doaj   +1 more source

An efficient medical image watermarking scheme based on FDCuT–DCT

open access: yesEngineering Science and Technology, an International Journal, 2017
In this paper, a blind medical image watermarking scheme based on Fast Discrete Curvelet Transform (FDCuT) and Discrete Cosine Transform (DCT) is proposed.
Rohit Thanki   +3 more
doaj   +1 more source

What is...a Curvelet? [PDF]

open access: yes, 2003
Energized by the success of wavelets, the last two decades saw the rapid development of a new field, computational harmonic analysis, which aims to develop new systems for effectively representing phenomena of scientific interest.
Candès, Emmanuel J.
core   +1 more source

Cardiac events detection using curvelet transform

open access: yesSādhanā, 2019
Cardiac event detection is one of the essential steps in cardiac signal processing, analysis and disease diagnosis. Complete morphology of cardiac waves (P–QRS–T) extracted from the location of R-peak is helpful for feature extraction of many applications related to cardiac diseases classification.
ALKA BARHATTE   +2 more
openaire   +2 more sources

CURVELET BASED SATELLITE IMAGE NATURAL RESOURCE CLASSIFICATION SYSTEM USING ELM

open access: yesICTACT Journal on Image and Video Processing, 2018
Remote sensing is one of the hottest topics of research, which intends to study or analyze a particular object in the topographic map. The monitoring and management is possible when it is possible to differentiate the objects in the satellite image ...
Anita Dixit   +2 more
doaj   +1 more source

Curvelet Transform-Based Sparsity Promoting Algorithm for Fast Ultrasound Localization Microscopy. [PDF]

open access: yesIEEE Trans Med Imaging, 2022
You Q   +8 more
europepmc   +1 more source

ShearLab: A Rational Design of a Digital Parabolic Scaling Algorithm [PDF]

open access: yes, 2011
Multivariate problems are typically governed by anisotropic features such as edges in images. A common bracket of most of the various directional representation systems which have been proposed to deliver sparse approximations of such features is the ...
Gitta Kutyniok   +4 more
core   +1 more source

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