Results 51 to 60 of about 901 (179)
A Review of Hydrophobicity Measurement and Classification Methods for High‐Voltage Insulators
Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.Hydrophobicity is a critical property influencing the performance and reliability of high‐voltage insulators, particularly nonceramic types, by mitigating surface contamination and reducing the risk of flashover. This paper presents a comprehensive review of hydrophobicity assessment techniques, spanning traditional laboratory‐based techniques ...
Christos Zachariades +4 more
wiley +1 more source
Contourlets and sparse image expansions [PDF]
SPIE Proceedings, 2003 Recently, the contourlet transform has been developed as a true two-dimensional representation that can capture the geometrical structure in pictorial information. Unlike other transforms that were initially constructed in the continuous-domain and then discretized for sampled data, the contourlet construction starts from the discrete-domain using ...
openaire +1 more source
Engineering Reports, Volume 7, Issue 8, August 2025.Railway electrification systems indeed have unique challenges due to variable power demand and dynamic train operations. Power quality (PQ) monitoring for high‐speed trains (HSTs) is essential to guarantee the effectual and unfailing operation of the ESs.
Pampa Sinha +6 more
wiley +1 more source
A Spatiotemporal Scheme for Process Control Using Image Analysis of Speckle Patterns
Quality and Reliability Engineering International, Volume 41, Issue 5, Page 1773-1788, July 2025.ABSTRACT Conventional image‐based process control schemes require distinct, detectable features (e.g., edges or textures). In the absence of such features, current methods fail or require additional preprocessing. They are also prone to false detections from random noise, dirt, or scratches on the surface.
Hamed Sabahno, Davood Khodadad
wiley +1 more source
Remote Sensing Image Change Detection Based on NSCT-HMT Model and Its Application
Sensors, 2017 Traditional image change detection based on a non-subsampled contourlet transform always ignores the neighborhood information’s relationship to the non-subsampled contourlet coefficients, and the detection results are susceptible to noise interference ...
Pengyun Chen +4 more
doaj +1 more source
Image Separation Based on Nonsubsampled Contourlet(NSCT)
International Journal on Organic Electronics, 2013 When an image or a document on a paper acquired through scanning, photographing or photocopying, the image on the back page may be show through. This cause a non-linear image mixture and should be resolved through a non-linear source separation. In this paper, we improve a previously introduced method, which suppose two independent images in the same ...
Azadeh Bamdad Moghadam +3 more
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Multispectral image fusion technique based on decoupling of information
IET Image Processing, Volume 19, Issue 1, January/December 2025.A multispectral image fusion method based on information decoupling is proposed to address the issue of unremarkable targets and the serious loss of background details. In accordance with the U‐shaped network structure, multi‐scale feature fusion is employed to obtain comprehensive contextual features.
Wenqi Yu +3 more
wiley +1 more source
An Unsupervised Image Enhancement Method Based on Adaptation Region Divisions
IET 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
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Dual Video Watermarking Algorithm Based on SIFT and HVS in the Contourlet Domain
IEEE Access, 2019 We propose dual un-compressed video watermarking algorithms based on human visual system and scale invariant feature transform (SIFT) in the contourlet domain.
Zhi Li, Shu Qin Chen, Xin Yu Cheng
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CDRWF: Compressed Domain Based Robust Watermarking Framework for Colored Images
IET Image Processing, Volume 19, Issue 1, January/December 2025.Image watermarking in the compressed domain is a highly significant research problem. The work proposed in this paper addresses the dual challenge of optimizing image compression for storage conservation and simultaneously implementing robust image watermarking for copyright protection.
Samrah Mehraj +2 more
wiley +1 more source