Results 61 to 70 of about 2,777 (169)

Linear independence of compactly supported separable shearlet systems

open access: yes, 2015
This paper examines linear independence of shearlet systems. This property has already been studied for wavelets and other systems such as, for instance, for Gabor systems.
Ma, Jackie, Petersen, Philipp
core   +1 more source

Multimodal Biometrics: A Review of Handcrafted and AI–Based Fusion Approaches

open access: yesIET Biometrics, Volume 2025, Issue 1, 2025.
As security threats continue to evolve, multimodal biometric recognition systems (MBRSs) have emerged as robust solutions for reliable user authentication. To the best of our knowledge, this study presents the first systematic literature review (SLR) specifically focused on MBRS based on physiological traits, combining traditional image processing ...
Hind Es-Sobbahi   +3 more
wiley   +1 more source

Detection and Characterisation of Atypical Harmonic Patterns in Big Power Quality Data

open access: yesIET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
This paper proposes a new algorithm to identify and assess properties of atypical harmonic patterns in long‐term monitoring data adaptively. The well‐known challenges of field application, such as data accuracy validation, missing data handling, adaptability to dynamic data nature (seasonality and trends), and data mining results interpretation, are ...
Olga Zyabkina   +6 more
wiley   +1 more source

Sparse representation for restoring images by exploiting topological structure of graph of patches

open access: yesIET Image Processing, Volume 19, Issue 1, January/December 2025.
To elevate sparse representation learning, this study leverages a graph learning model to delineate similarity relationships among image patches, utilizing this model for the initial image reconstruction phase. To capitalize on inter‐patch relationships while preserving individual patch characteristics, low‐rank constraints are integrated during the ...
Yaxian Gao   +5 more
wiley   +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

An Unsupervised Image Enhancement Method Based on Adaptation Region Divisions

open access: yesIET Image Processing, Volume 19, Issue 1, January/December 2025.
This paper proposes an image enhancement method that combines traditional techniques with deep learning. It converts images to Lab color space, calculates texture complexity, adaptation region divisions and uses a convolutional autoencoder for noise reduction.
Kaijun Zhou, Weiyi Yuan, Yemei Qin
wiley   +1 more source

Histopathology Image Enhancement Using Multi‐Resolution Deep Learning Techniques

open access: yesIET Image Processing, Volume 19, Issue 1, January/December 2025.
Accurate analysis of histopathology images is critical for reliable disease diagnosis and effective treatment planning. However, the resolution limitations of digital pathology scanners can hinder the visibility of fine cellular details, potentially impacting diagnostic accuracy and patient outcomes. In this study, we present a comprehensive comparison
Meriem Touhami   +4 more
wiley   +1 more source

Analysis of time-frequency scattering transforms

open access: yes, 2018
In this paper we address the problem of constructing a feature extractor which combines Mallat's scattering transform framework with time-frequency (Gabor) representations. To do this, we introduce a class of frames, called uniform covering frames, which
Czaja, Wojciech, Li, Weilin
core   +1 more source

Fake Fingerprint Classification Using Hybrid Features Learning With Gradient Boosting

open access: yesApplied Computational Intelligence and Soft Computing, Volume 2025, Issue 1, 2025.
Biometric security systems must be able to detect phony fingerprints to provide reliable authentication. The findings of this study suggest a hybrid approach to the detection of fake fingerprints that uses information on the texture and shape of the fingerprint.
Muhammad Salman Ali   +7 more
wiley   +1 more source

Analysis of Inpainting via Clustered Sparsity and Microlocal Analysis [PDF]

open access: yes, 2012
Recently, compressed sensing techniques in combination with both wavelet and directional representation systems have been very effectively applied to the problem of image inpainting.
King, Emily J.   +2 more
core  

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