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Detection of Defects in Colour Texture Surfaces

Josef Kittler, Radek Marik, Majid Mirmehdi, Maria Petrou, J. Song
1994 IAPR International Workshop on Machine Vision Applications  
In this paper, we present different algorithms for the detection of surface abnormalities both in the chromatic and structural properties of random textures.  ...  An important area of automatic industrial inspection that has been largely overlooked by the recent wave of research in machine vision applications is the detection of defects in textured surfaces.  ...  Acknowledgements This work has been supported by the RRITE projects 0946 AVIS and 0260 ASSIST.  ... 
dblp:conf/mva/KittlerMMPS94 fatcat:b5nzwuu34rgjlb2yzesorcknta

Texture discrimination using the Wigner-Ville distribution

Javier Hormigo, Gabriel Cristobal, Leon Cohen, Lorenzo Galleani, Bruce Suter, Andrew G. Tescher
2003 Applications of Digital Image Processing XXVI  
The idea is to use a modular pattern detection in textured images based on the use of a Pseudo-Wigner Distribution (PWD) followed by a decorrelation procedure that consists of a principal component analyzer  ...  The goal is to combine the advantages of a high spectral resolution of a joint representation given by the Pseudo-Wigner distribution (PWD) with an effective adaptive principal component analysis.  ...  ACKNOWLEDGMENTS The authors would like to thank A. Kumar and F.J. Madrid for providing the fabric texture and crack copper rod images respectively.  ... 
doi:10.1117/12.506881 fatcat:b5stcaeeczdupldyglkbjnlsai

Image Filtering and Analysis through the Wigner Distribution [chapter]

Gabriel Cristóbal, Consuelo Gonzalo, Julián Bescós
1991 Advances in Electronics and Electron Physics  
Segmentation by Gabor and wavelet filtering (Perry 1989) Shape from texture Surface orientation by texture gradient using WD (Jau 1988) Stereo Local disparity information by Gabor filtering (Jenkin  ...  Insert Fig. 5.8 about hereJau and Chin (Jau 1988 ) have proposed the use of the change in texture density (texture gradient) as an estimator of surface shape.  ... 
doi:10.1016/s0065-2539(08)60611-3 fatcat:4rqnb3hervc4fnsndnmcrpxcey

Mechanical Fault Diagnosis Using Color Image Recognition of Vibration Spectrogram Based on Quaternion Invariable Moment

Liang Hua, Yujian Qiang, Juping Gu, Ling Chen, Xinsong Zhang, Hairong Zhu
2015 Mathematical Problems in Engineering  
Acquired mechanical vibration signals can be converted into color time-frequency spectrum images by the processing of pseudo Wigner-Ville distribution.  ...  The experimental results show that the recognition rates of quaternion invariant moment are higher than gray level-gradient cooccurrence matrix in the same recognition method.  ...  Acknowledgments This work was supported by the National Natural Science Foundation of China (61273024, 61305031, and 51307089), the Natural Science Foundation of Jiangsu Province (KB2012227), and the "  ... 
doi:10.1155/2015/702760 fatcat:tqe4ivxtn5dxdk7o3lbsd2acpm

Page 6566 of Mathematical Reviews Vol. , Issue 99i [page]

1999 Mathematical Reviews  
The texture inside each region is successively approximated using two-dimensional (2-D) shape- independent basis functions defined on a rectangle circumscribing the given image segment.  ...  Summary: “In this paper, we introduce a new set of tools for time- varying spectral analysis: the pseudo affine Wigner distributions. Based on the affine Wigner distributions of J. and P.  ... 

Nuclear magnetic resonance line shapes of Wigner crystals in C13 -enriched graphene

R. Côté, Jean-Michel Parent
2017 Physical review B  
We then show that, if the linewidth of the bare signal can be made sufficiently small, the Wigner and bubble crystals have line shapes that differ qualitatively from that of the uniform state at the same  ...  density while crystal states that have spin or valley pseudospin textures do not.  ...  Among the predicted ground states, we find that Wigner and bubble crystals (i.e., states with no valley and/or spin texture) have NMR line shapes that differ qualitatively from those of the corresponding  ... 
doi:10.1103/physrevb.95.235411 fatcat:ujwetoiui5c4ljagvr7yq2njgq

A Galaxy of Texture Features [chapter]

Xianghua Xie, Majid Mirmehdi
2008 Handbook of Texture Analysis  
Then, a list of widely used texture features is presented in alphabetical order.  ...  The aim of this chapter is to give experienced and new practitioners in image analysis and computer vision an overview and a quick reference to the "galaxy" of features that exist in the field of texture  ...  Features from this tessellation, such as area of the pologal regions, its shape and orientation, and relative position to the tokens, were used for texture segmentation. (40) Wavelets (− − −) Fig. 13  ... 
doi:10.1142/9781848161160_0013 fatcat:zd44p2bgdfhlvoem655iokdgbq

Image Segmentation Using the Wigner-Ville Distribution [chapter]

Javier Hormigo, Gabriel Cristóbal
2004 Advances in Imaging and Electron Physics  
Kumar for providing the fabric texture images.  ...  This work has been partially supported by the following grants: TIC2001-3697-C03-02; III PRICIT of the Comunidad Autonoma de Madrid and the IM3 medical imaging thematic network.  ...  However, there exist some applications, e.g. shape from texture, that require a more dense sampling as provided by the PWD or the spectrogram (Krumm, 1993; Malik and Rosenholtz, 1994) .  ... 
doi:10.1016/s1076-5670(04)31002-5 fatcat:rybmmnyzv5eqrkesyqp6jm45hu


2000 Series in Machine Perception and Artificial Intelligence  
Most textures in the real world are non-uniform, the inspection speed requirements extreme and very difficult to satisfy at a reasonable cost using textbook methods.  ...  Despite the obvious needs of applications, texture analysis is a rare method in automated visual inspection outside textile industry.  ...  knowledge wtamv99silven.doc submitted to World Scientific 4/15/2005 : 1:39 PM 7/10 of the mean particle size and shape of the distribution are used for control.  ... 
doi:10.1142/9789812792495_0016 fatcat:ia5rxatqynad7pzqrpzrjxvomy

A Robust Image Watermarking Algorithm Based on HHT

Deng Minghui, Zeng Qingshuang, Yang Juqing
2011 Procedia Engineering  
In the two-dimensional Radon-Wigner transformation domain, the chirp signals used as watermarks change only its position in space/spatial-frequency distribution, after applying linear geometrical attack  ...  The HHT transformation is used to detect the watermark.  ...  Acknowledgements The paper is supported by the 2009 Natural Science Program of Heilongjiang Province Educational Committee (NO.11541016) and the Doctor Startup Funding of Northeast Agricultural University  ... 
doi:10.1016/j.proeng.2011.08.287 fatcat:ufxzt4i52vecfd5q353mytxq5q

Texture segmentation through eigen-analysis of the Pseudo-Wigner distribution

Gabriel Cristóbal, Javier Hormigo
1999 Pattern Recognition Letters  
In this paper we propose a new method for texture segmentation based on the use of texture feature detectors derived from a decorrelation procedure of a modi®ed version of a Pseudo-Wigner distribution  ...  (PCA) through the use of feedforward neural networks.  ...  Acknowledgements This work has been supported in part by the following Grants: NATO Collaborative Grants Program, and EU INCO-DC AMOVIP 961646 Project. J.  ... 
doi:10.1016/s0167-8655(99)00002-1 fatcat:3gho2x6ugbetdkmiv6dfd5itb4

Paradigm shifts in surface metrology. Part I. Historical philosophy

X. Jiang, P.J. Scott, D.J. Whitehouse, L. Blunt
2007 Proceedings of the Royal Society A  
The surfaces produced by manufacture seemed to offer the possibility of being useful for process control.  ...  Surface texture and its measurement are becoming the most critical factors and important functionality indicators in the performance of high precision and nanoscale devices and components.  ...  The authors gratefully acknowledge the Research Committee of the University of Huddersfield for supporting funds for this work and the directors of Taylor Hobson Limited for permission to publish.  ... 
doi:10.1098/rspa.2007.1874 fatcat:zgezgdvej5e4nkiyuf2guixzze

A generalized spherical harmonic deconvolution to obtain texture of cubic materials from ultrasonic wave speed

Bo Lan, Michael J.S. Lowe, Fionn P.E. Dunne
2015 Journal of the mechanics and physics of solids  
Proof of principle is then established by recovering the ODFs of representative cubic textures solely from the wave velocities generated from a computational model using these texture inputs, and excellent  ...  Orientation Distribution Functions (ODF), pole figures and inverse pole figures are among the most commonly used methods to describe the texture of a cubic polycrystal, with only the former containing  ...  For Texture-3, even though the contours of the recovered pole figures appear to be different from the original distributions, in fact the random texture is captured and the pole distribution densities  ... 
doi:10.1016/j.jmps.2015.06.012 fatcat:toobnsh3iva2dl3fkcm3ceu54y

Theory of topological excitations and metal-insulator transition in reentrant integer quantum Hall effect [article]

G.E. Simion, T-G. Lin, J. D. Watson, M. J. Manfra, G.A. Csáthy, L. P. Rokhinson, Y.B. Lyanda-Geller
2017 arXiv   pre-print
We show analytically and numerically that topological textures in the charge density distribution in these crystals in the vicinity of charged defects strongly reduce energy required for current-carrying  ...  The reentrant integer quantum Hall effects (RIQHE) are due to formation of electronic crystals.  ...  defect density ρ d < 4L 2 textures from different defects do not overlap.  ... 
arXiv:1705.05233v1 fatcat:tozzlojhzbdmtlrfiqq4w7su4y

Topological magnetic textures in magnetic topological insulators

Nisarga Paul, Liang Fu
2021 Physical Review Research  
We study the magnetic phases arising from tuning the electron density using variational and exact diagonalization approaches.  ...  The binding of electrons to textures raises the possibility of manipulating textures with electrostatic gating.  ...  L.F. is partly supported by a Simons Investigator award from the Simons Foundation.  ... 
doi:10.1103/physrevresearch.3.033173 fatcat:p7oj55avlnh7vhmla4beutc7jy
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