Prof. Frédéric Truchetet Profile

Prof. Frédéric Truchetet

Professor Emeritus at Univ de Bourgogne

SPIE Involvement:

Author | Editor

Publications (93)

SPIE Journal Paper | 4 January 2017

Toward a virtual reconstruction of an antique three-dimensional marble puzzle

Fatima Zahra Benamar, Eric Fauvet, Antony Hostein, Olivier Laligant, Frédéric Truchetet

JEI, Vol. 26, Issue 01, 011023, (January 2017) https://doi.org/10.1117/12.10.1117/1.JEI.26.1.011023

KEYWORDS: 3D acquisition, 3D image processing, Clouds, Reconstruction algorithms, Visibility, 3D scanning, Cameras, 3D modeling, Calibration, Data acquisition

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Proceedings Article | 30 June 2016 Paper

3D digitization methods based on laser excitation and active triangulation: a comparison

Olivier Aubreton, Fabrice Mériaudeau, Frédéric Truchetet

Proceedings Volume 9896, 98960I (2016) https://doi.org/10.1117/12.2227670

KEYWORDS: 3D scanning, 3D image processing, Luminescence, Visible radiation, Cameras, Optical engineering, Infrared imaging, Laser development, Dielectric polarization, Infrared cameras, Machine vision, Computer vision technology, 3D modeling, Absorption, Ultraviolet radiation

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SPIE Journal Paper | 11 January 2016

Coarse-to-fine three-dimensional digitization system

Vincent Daval, Frederic Truchetet, Olivier Aubreton

JEI, Vol. 24, Issue 06, 061120, (January 2016) https://doi.org/10.1117/12.10.1117/1.JEI.24.6.061120

KEYWORDS: 3D modeling, 3D acquisition, Image segmentation, 3D image processing, 3D scanning, Clouds, Data acquisition, Imaging systems, Optical spheres, Scanners

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Proceedings Article | 30 April 2015 Paper

A coarse to fine 3D acquisition system

V. Daval, F. Truchetet, O. Aubreton

Proceedings Volume 9534, 95340U (2015) https://doi.org/10.1117/12.2182885

KEYWORDS: 3D acquisition, Image segmentation, Clouds, Data acquisition, 3D modeling, Optical spheres, Data modeling, 3D scanning, 3D image processing, Scanners

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Proceedings Article | 17 March 2015 Paper

About using Pockels cell for time-of-flight imaging

F. Truchetet, J. M. Teow, M. C. Tay

Proceedings Volume 9393, 93930P (2015) https://doi.org/10.1117/12.2075718

KEYWORDS: Cameras, Modulation, Spatial resolution, Time of flight imaging, Modulators, Signal detection, Imaging systems, Phase shifts, Sensors, Target detection

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Proceedings Article | 17 March 2015 Paper

3D puzzle reconstruction for archeological fragments

F. Jampy, A. Hostein, E. Fauvet, O. Laligant, F. Truchetet

Proceedings Volume 9393, 939308 (2015) https://doi.org/10.1117/12.2075655

KEYWORDS: 3D acquisition, 3D image processing, Cameras, Calibration, Visibility, Image processing, Clouds, Tablets, 3D image reconstruction, Data acquisition

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Proceedings Article | 17 March 2015 Paper

Coarse to fine: toward an intelligent 3D acquisition system

V. Daval, O. Aubreton, F. Truchetet

Proceedings Volume 9393, 93930C (2015) https://doi.org/10.1117/12.2075657

KEYWORDS: 3D acquisition, 3D modeling, Clouds, Image segmentation, Intelligence systems, 3D image processing, Data acquisition, Data modeling, Optical spheres, Light sources and illumination

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SPIE Journal Paper | 19 May 2014

Progressive transmission of secured images with authentication using decompositions into monovariate functions

Pierre-Emmanuel Leni, Yohan Fougerolle, Frédéric Truchetet

JEI, Vol. 23, Issue 03, 033006, (May 2014) https://doi.org/10.1117/12.10.1117/1.JEI.23.3.033006

KEYWORDS: Digital watermarking, Image resolution, Superposition, Transparency, Digital filtering, Translucency, Opacity, Image encryption, Binary data, Video

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Proceedings Article | 12 March 2013 Paper

3D shape extraction of internal and external surfaces of glass objects

A. Bajard, O. Aubreton, F. Truchetet

Proceedings Volume 8650, 86500X (2013) https://doi.org/10.1117/12.2012024

KEYWORDS: Glasses, 3D acquisition, 3D scanning, 3D image processing, Prototyping, Infrared radiation, Cameras, Infrared cameras, Reflection, Laser scanners

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SPIE Journal Paper | 4 June 2012

Three-dimensional scanning of specular and diffuse metallic surfaces using an infrared technique

Alban Bajard, Olivier Aubreton, Youssef Bokhabrine, Benjamin Verney, Frédéric Truchetet, Gönen Eren, Aytul Erçil

OE, Vol. 51, Issue 6, 063603, (June 2012) https://doi.org/10.1117/12.10.1117/1.OE.51.6.063603

KEYWORDS: 3D scanning, Scanners, 3D acquisition, 3D modeling, Clouds, Thermography, Infrared imaging, Infrared radiation, Metals, Reflectivity

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Proceedings Article | 30 January 2012 Paper

Estimation of surface normal vectors based on 3D scanning from heating approach

Olivier Aubreton, Gonen Eren, Youssef Bokhabrine, Alban Bajard, Frederic Truchetet

Proceedings Volume 8290, 82900X (2012) https://doi.org/10.1117/12.908568

KEYWORDS: 3D scanning, Infrared cameras, Cameras, Calibration, Glasses, 3D image processing, Infrared imaging, Infrared radiation, 3D modeling, Scanners

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Proceedings Article | 12 July 2011 Paper

An algorithm for a progressive acquisition image sensor

Pierre-Emmanuel Leni, Yohan Fougerolle, Frédéric Truchetet

Proceedings Volume 8000, 80000O (2011) https://doi.org/10.1117/12.890904

KEYWORDS: Image resolution, Image transmission, Superposition, Image sensors, Cameras, Image encryption, Data acquisition, Image quality, Image acquisition, Optical resolution

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Proceedings Article | 27 January 2011 Paper

3D digitization of metallic specular surfaces using scanning from heating approach

Alban Bajard, Olivier Aubreton, Gonen Eren, Pierre Sallamand, Frédéric Truchetet

Proceedings Volume 7864, 786413 (2011) https://doi.org/10.1117/12.872467

KEYWORDS: Cameras, Glasses, 3D scanning, 3D modeling, 3D metrology, Metals, Clouds, Absorption, Aluminum, Laser sources

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SPIE Journal Paper | 1 September 2010

New adaptive and progressive image transmission approach using function superpositions

Pierre-Emmanuel Leni, Yohan Fougerolle, Frédéric Truchetet

OE, Vol. 49, Issue 09, 097001, (September 2010) https://doi.org/10.1117/12.10.1117/1.3485757

KEYWORDS: Image transmission, Image resolution, Superposition, Image restoration, Optical engineering, Image compression, Digital filtering, Reconstruction algorithms, Image quality, Berkelium

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Proceedings Article | 4 February 2010 Paper

Recent advances in multiresolution analysis of 3D meshes and their applications

Michaël Roy, Sebti Foufou, Frédéric Truchetet

Proceedings Volume 7535, 75350H (2010) https://doi.org/10.1117/12.845595

KEYWORDS: 3D modeling, Wavelets, Wavelet transforms, Denoising, Computer graphics, 3D acquisition, Smoothing, Visualization, Digital watermarking, Algorithm development

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Proceedings Article | 26 January 2010 Paper

Kolmogorov superposition theorem and wavelets for image compression

Pierre-Emmanuel Leni, Yohan Fougerolle, Frédéric Truchetet

Proceedings Volume 7535, 753502 (2010) https://doi.org/10.1117/12.838874

KEYWORDS: Image compression, Wavelets, Superposition, Image quality, Image restoration, Reconstruction algorithms, Image processing, Stochastic processes, Image encryption, Image resolution

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Proceedings Article | 28 January 2009 Paper

Kolmogorov superposition theorem and its application to wavelet image decompositions

Pierre-Emmanuel Leni, Yohan Fougerolle, Frédéric Truchetet

Proceedings Volume 7248, 724804 (2009) https://doi.org/10.1117/12.805916

KEYWORDS: Reconstruction algorithms, Wavelets, Superposition, Image compression, Neural networks, Signal processing, Image processing, Stochastic processes, Image quality, Algorithms

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This paper deals with the decomposition of multivariate functions into sums and compositions of monovariate functions. The global purpose of this work is to find a suitable strategy to express complex multivariate functions using simpler functions that can be analyzed using well know techniques, instead of developing complex Ndimensional tools. More precisely, most of signal processing techniques are applied in 1D or 2D and cannot easily be extended to higher dimensions. We recall that such a decomposition exists in the Kolmogorov's superposition theorem. According to this theorem, any multivariate function can be decomposed into two types of univariate functions, that are called inner and external functions. Inner functions are associated to each dimension and linearly combined to construct a hash-function that associates every point of a multidimensional space to a value of the real interval [0, 1]. Every inner function is the argument for one external function. The external functions associate real values in [0, 1] to the image by the multivariate function of the corresponding point of the multidimensional space. Sprecher, in Ref. 1, has proved that internal functions can be used to construct space filling curves, i.e. there exists a curve that sweeps the multidimensional space and uniquely matches corresponding values into [0, 1]. Our goal is to obtain both a new decomposition algorithm for multivariate functions (at least bi-dimensional) and adaptive space filling curves. Two strategies can be applied. Either we construct fixed internal functions to obtain space filling curves, which allows us to construct an external function such that their sums and compositions exactly correspond to the multivariate function; or the internal function is constructed by the algorithm and is adapted to the multivariate function, providing different space filling curves for different multivariate functions. We present two of the most recent constructive algorithms of monovariate functions. The first method is due to Sprecher (Ref. 2 and Ref. 3). We provide additional explanations to the existing algorithm and present several decomposition results for gray level images. We point out the main drawback of this method: all the function parameters are fixed, so the univariate functions cannot be modified; precisely, the inner function cannot be modified and so the space filling curve. The number of layers depends on the dimension of the decomposed function. The second algorithm, proposed by Igelnik in Ref. 4, increases the parameters flexibility, but only approximates the monovariate functions: the number of layers is variable, a neural networks optimizes the monovariate functions and the weights associated to each layer to ensure convergence to the decomposed multivariate function. We have implemented both Sprecher's and Igelnik's algorithms and present the results of the decompositions of gray level images. There are artifacts in the reconstructed images, which leads us to apply the algorithm on wavelet decomposition images. We detail the reconstruction quality and the quantity of information contained in Igelnik's network.

SPIE Journal Paper | 1 July 2008

Review of industrial applications of wavelet and multiresolution-based signal and image processing

Frédéric Truchetet, Olivier Laligant

JEI, Vol. 17, Issue 03, 031102, (July 2008) https://doi.org/10.1117/12.10.1117/1.2957606

KEYWORDS: Wavelets, Signal processing, Wavelet transforms, Discrete wavelet transforms, Image compression, Image processing, Analytical research, Statistical analysis, Video compression, Feature extraction

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Proceedings Article | 26 February 2008 Paper

Feasibility study for a catadioptric bi-spectral imaging system

C. Gée, L. Berret, C. Chardon, J. Bossu, J.-P. Guillemin, G. Jones, F. Truchetet

Proceedings Volume 6813, 681306 (2008) https://doi.org/10.1117/12.766471

KEYWORDS: Cameras, Mirrors, Imaging systems, Optical filters, Vegetation, CCD cameras, Combined lens-mirror systems, Agriculture, Visual process modeling, Diagnostics

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Proceedings Article | 1 November 2007 Paper

Wavelet transform to discriminate between crop and weed in agronomic images

Jérémie Bossu, Christelle Gee, Frédéric Truchetet

Proceedings Volume 6763, 67630R (2007) https://doi.org/10.1117/12.735568

KEYWORDS: Wavelets, Wavelet transforms, Hough transforms, Agriculture, Chromium, Detection and tracking algorithms, Optical filters, Image enhancement, Cameras, Image filtering

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Proceedings Article | 4 October 2007 Paper

A biphase scheme for edge detection

O. Laligant, F. Truchetet

Proceedings Volume 6763, 67630Z (2007) https://doi.org/10.1117/12.752754

KEYWORDS: Edge detection, Image filtering, Signal to noise ratio, Sensors, Signal detection, Denoising, Image segmentation, Optical character recognition, Linear filtering, Electronic filtering

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Proceedings Article | 29 May 2007 Paper

Simulation of agronomic images for an automatic evaluation of crop/weed discrimination algorithm accuracy

G. Jones, Ch. Gée, F. Truchetet

Proceedings Volume 6356, 63560J (2007) https://doi.org/10.1117/12.736905

KEYWORDS: Cameras, Detection and tracking algorithms, Computer simulations, Algorithm development, Hough transforms, 3D modeling, Mathematical modeling, Device simulation, CCD cameras, Edge detection

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Proceedings Article | 29 May 2007 Paper

Optimizing signal and image processing applications using Intel libraries

Jérôme Landré, Frédéric Truchetet

Proceedings Volume 6356, 63560O (2007) https://doi.org/10.1117/12.736703

KEYWORDS: Image processing, Signal processing, Machine vision, Matrices, Computer vision technology, Transform theory, Wavelet transforms, Digital signal processing, Video, Image retrieval

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Proceedings Article | 29 May 2007 Paper

Rational supershapes for surface reconstruction

Y. Fougerolle, A. Gribok, S. Foufou, F. Truchetet, M. Abidi

Proceedings Volume 6356, 63560M (2007) https://doi.org/10.1117/12.736916

KEYWORDS: 3D modeling, Data modeling, Reverse modeling, Optimization (mathematics), Reconstruction algorithms, Machine vision, Statistical analysis, 3D vision, Computer vision technology, Visual process modeling

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Proceedings Article | 29 May 2007 Paper

Development of a machine vision system for a real-time precision sprayer

Jérémie Bossu, Christelle Gée, Frédéric Truchetet

Proceedings Volume 6356, 63560K (2007) https://doi.org/10.1117/12.736912

KEYWORDS: Image filtering, Image processing, Cameras, Machine vision, Imaging systems, Agriculture, CCD cameras, Signal detection, Fourier transforms, Gaussian filters

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Proceedings Article | 29 May 2007 Paper

Industrial applications of the wavelet and multi-resolution-based signal/image processing: a review

Fred Truchetet, Olivier Laligant

Proceedings Volume 6356, 63560H (2007) https://doi.org/10.1117/12.736742

KEYWORDS: Signal processing, Wavelets, Analytical research, Machine vision, Wavelet transforms, Image processing

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Proceedings Article | 8 March 2007 Paper

Crop/weed discrimination in simulated agronomic images

G. Jones, C. Gée, F. Truchetet

Proceedings Volume 6497, 64970E (2007) https://doi.org/10.1117/12.704012

KEYWORDS: Image processing, Computer simulations, Cameras, Vegetation, Hough transforms, Photography, Detection and tracking algorithms, Databases, Algorithm development, Device simulation

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SPIE Journal Paper | 1 March 2007 Open Access

Study of ambient light influence for three-dimensional scanners based on structured light

Sophie Voisin, Sebti Foufou, Frédéric Truchetet, David Page, Mongi Abidi

OE, Vol. 46, Issue 03, 030502, (March 2007) https://doi.org/10.1117/12.10.1117/1.2717126

KEYWORDS: 3D scanning, Scanners, Laser scanners, Error analysis, Manufacturing, Skin, Sensors, Light sources and illumination, Optical engineering, Structured light

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Proceedings Article | 19 October 2006 Paper

Lighting inhomogeneities removal by wavelet analysis

O. Laligant, F. Mériaudeau, F. Truchetet

Proceedings Volume 6383, 638304 (2006) https://doi.org/10.1117/12.687939

KEYWORDS: Wavelets, Light sources and illumination, Light sources, Signal analyzers, Signal processing, Machine vision, Image processing, Inspection, Reconstruction algorithms, Antimony

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Proceedings Article | 12 October 2006 Paper

Visual browsing in image collections using wavelets

Jérôme Landré, Frédéric Truchetet, Olivier Laligant

Proceedings Volume 6383, 63830O (2006) https://doi.org/10.1117/12.687020

KEYWORDS: Visualization, Databases, Image retrieval, Wavelets, Feature extraction, Image visualization, Fuzzy logic, Content based image retrieval, 3D image processing, RGB color model

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Proceedings Article | 9 February 2006 Paper

3D translucent object reconstruction from artificial vision

Frédéric Truchetet

Proceedings Volume 6070, 60700B (2006) https://doi.org/10.1117/12.641658

KEYWORDS: 3D modeling, Translucency, Inverse optics, Point spread functions, Convolution, 3D acquisition, Absorption, Image quality, Machine vision, Diffusion

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Proceedings Article | 9 February 2006 Paper

Color influence on accuracy of 3D scanners based on structured light

Sophie Voisin, David Page, Sebti Foufou, Frédéric Truchetet, Mongi Abidi

Proceedings Volume 6070, 607009 (2006) https://doi.org/10.1117/12.643448

KEYWORDS: RGB color model, 3D scanning, Skin, Scanners, Cameras, Error analysis, Sensors, Commercial off the shelf technology, Manufacturing, Structured light

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Proceedings Article | 9 February 2006 Paper

Development of methods based on double Hough transform or Gabor filtering to discriminate between crop and weed in agronomic images

Jérémie Bossu, Christelle Gée, Jean-Philippe Guillemin, Frédéric Truchetet

Proceedings Volume 6070, 60700N (2006) https://doi.org/10.1117/12.642908

KEYWORDS: Image filtering, Hough transforms, Linear filtering, Fourier transforms, Image processing, Image segmentation, Electronic filtering, Agriculture, Detection and tracking algorithms, Gaussian filters

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Proceedings Article | 2 February 2006 Paper

Aerial platform attitude measurement by artificial vision

F. Truchetet, O. Aubreton, P. Gorria, O. Laligant

Proceedings Volume 6070, 60700D (2006) https://doi.org/10.1117/12.642090

KEYWORDS: Imaging systems, Cameras, Image segmentation, Sensors, Machine vision, Image sensors, Error analysis, Calibration, Retina, Image processing

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Proceedings Article | 8 November 2005 Paper

Wavelets and edge localization in real images

O. Laligant, F. Truchetet, F. Mériaudeau

Proceedings Volume 6001, 600104 (2005) https://doi.org/10.1117/12.631636

KEYWORDS: Wavelets, Edge detection, Sensors, Interference (communication), Signal to noise ratio, Image processing, Signal detection, Signal processing, Image denoising, Actinium

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Proceedings Article | 8 November 2005 Paper

Gabor filters in industrial inspection: a review. Application to semiconductor industry

F. Meriaudeau, F. Truchetet, O. Laligant, P. Bourgeat

Proceedings Volume 6001, 600108 (2005) https://doi.org/10.1117/12.637675

KEYWORDS: Image filtering, Image processing, Defect detection, Semiconductors, Semiconducting wafers, Inspection, Optical filters, Image classification, Visual process modeling, Image segmentation

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SPIE Journal Paper | 1 March 2005

Merging system for multiscale edge detection

Olivier Laligant, Frederic Truchetet, Johel Miteran, Patrick Gorria

OE, Vol. 44, Issue 03, 035602, (March 2005) https://doi.org/10.1117/12.10.1117/1.1869998

KEYWORDS: Image segmentation, Edge detection, Image filtering, Optical engineering, Sensors, Digital filtering, Image processing, Neodymium, Image quality, Electronic filtering

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Proceedings Article | 1 November 2004 Paper

A wavelet filter performance criterion

Frederic Nicolier, Frederic Truchetet

Proceedings Volume 5607, (2004) https://doi.org/10.1117/12.581231

KEYWORDS: Wavelets, Denoising, Image compression, Fast wavelet transforms, Image processing, Chemical species, Image filtering, Wavelet transforms, Signal processing, Image quality

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Proceedings Article | 1 November 2004 Paper

Wavelets in industrial applications: a review

Frederic Truchetet, Olivier Laligant

Proceedings Volume 5607, (2004) https://doi.org/10.1117/12.580395

KEYWORDS: Wavelets, Wavelet transforms, Signal processing, Discrete wavelet transforms, Image compression, Image processing, Analytical research, Feature extraction, Statistical analysis, Video compression

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Proceedings Article | 1 November 2004 Paper

Depth from (de)focus by local transform

Thomas Chalumeau, Fabrice Meriaudeau, Olivier Laligant, Frederic Truchetet, Luciano da Fontoura Costa

Proceedings Volume 5607, (2004) https://doi.org/10.1117/12.571976

KEYWORDS: 3D image processing, Cameras, Sensors, 3D image reconstruction, Image sensors, Point spread functions, 3D modeling, 3D acquisition, Imaging systems, Structured light

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Proceedings Article | 1 November 2004 Paper

Denoising 3D models with attributes using soft thresholding

Michael Roy, Sebti Foufou, Frederic Truchetet

Proceedings Volume 5607, (2004) https://doi.org/10.1117/12.578791

KEYWORDS: Denoising, 3D modeling, Wavelets, 3D scanning, Data modeling, Filtering (signal processing), Statistical analysis, Smoothing, 3D acquisition, Analytical research

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SPIE Journal Paper | 1 July 2004

Development of a multispectral imagery device devoted to weed detection

Jean-Baptiste Vioix, Jean-Paul Douzals, Frédéric Truchetet

JEI, Vol. 13, Issue 03, (July 2004) https://doi.org/10.1117/12.10.1117/1.1760756

KEYWORDS: Optical filters, Multispectral imaging, Reflectivity, Charge-coupled devices, Neural networks, Cameras, Neurons, Spatial resolution, Visible radiation, Image processing

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SPIE Journal Paper | 1 July 2004

Motion estimation for medical application in psychiatry

Olivier Laligant, Remy Leconge, Frédéric Truchetet, Olivier Mahu, Alain Diou

JEI, Vol. 13, Issue 03, (July 2004) https://doi.org/10.1117/12.10.1117/1.1762521

KEYWORDS: Head, Motion estimation, Eye, Iris recognition, Light sources and illumination, Cameras, Spherical lenses, 3D image reconstruction, 3D image processing, Image processing

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Proceedings Article | 27 February 2004 Paper

Multiresolution hierarchical content-based image retrieval of paleontology images

Jerome Landre, Frederic Truchetet

Proceedings Volume 5266, (2004) https://doi.org/10.1117/12.515873

KEYWORDS: Databases, Feature extraction, Visualization, Wavelets, Image processing, Image retrieval, Image analysis, Content based image retrieval, Analytical research, Visual process modeling

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Proceedings Article | 27 February 2004 Paper

Multiresolution analysis for irregular meshes

Michael Roy, Sebti Foufou, Andreas Koschan, Frederic Truchetet, Mongi Abidi

Proceedings Volume 5266, (2004) https://doi.org/10.1117/12.515974

KEYWORDS: Denoising, Smoothing, Filtering (signal processing), Wavelets, Visualization, Phase modulation, Linear filtering, 3D modeling, Digital filtering, Reconstruction algorithms

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Proceedings Article | 27 February 2004 Paper

Rational wavelet transform: application to signal denoising

Alexandre Baussard, Olivier Laligant, Frederic Nicolier, Frederic Truchetet

Proceedings Volume 5266, (2004) https://doi.org/10.1117/12.516068

KEYWORDS: Wavelets, Denoising, Wavelet transforms, Signal processing, Signal to noise ratio, Filtering (signal processing), Algorithms, Signal analyzers, Electronic filtering, Projection systems

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Proceedings Article | 27 February 2004 Paper

Development of a spatial method for weed detection and localization

Jean-Baptiste Vioix, Jean-Paul Douzals, Frédéric Truchetet

Proceedings Volume 5266, (2004) https://doi.org/10.1117/12.516253

KEYWORDS: Wavelets, Linear filtering, Fourier transforms, Transform theory, Convolution, Image filtering, Algorithm development, Electronic filtering, Detection and tracking algorithms, Signal detection

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Proceedings Article | 1 May 2003 Paper

Characterization of the 3D information of Calyptogena shells

O. Morel, C. Stolz, Frederic Truchetet, Bruno David, T. Chone, Eric Verrecchia

Proceedings Volume 5132, (2003) https://doi.org/10.1117/12.515072

KEYWORDS: 3D scanning, Biological research, 3D image processing, Scanners, Image analysis, 3D modeling, 3D acquisition, Image filtering, Wavelets, Image acquisition

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Proceedings Article | 1 May 2003 Paper

Development of a multispectral imagery device devoted to weed detection

Jean-Baptiste Vioix, Jean-Paul Douzals, Frederic Truchetet, Pierre Navar

Proceedings Volume 5132, (2003) https://doi.org/10.1117/12.515150

KEYWORDS: Optical filters, Multispectral imaging, Cameras, Charge-coupled devices, Reflectivity, Neurons, Neural networks, Spatial resolution, Visible radiation, Near infrared

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SPIE Journal Paper | 1 July 2002

Discrete wavelet transform implementation in Fourier domain for multidimensional signal

Frederic Nicolier, Olivier Laligant, Frederic Truchetet

JEI, Vol. 11, Issue 03, (July 2002) https://doi.org/10.1117/12.10.1117/1.1479701

KEYWORDS: Electronic filtering, Filtering (signal processing), Convolution, Multidimensional signal processing, Signal processing, Wavelet transforms, Fourier transforms, Image segmentation, Wavelets, Optical filters

Proceedings Article | 8 March 2002 Paper

Assessment of mesh simplification algorithm quality

Michael Roy, Frederic Nicolier, S. Foufou, Frederic Truchetet, Andreas Koschan, Mongi Abidi

Proceedings Volume 4661, (2002) https://doi.org/10.1117/12.460166

KEYWORDS: Visualization, Quality measurement, Software development, 3D modeling, Solid modeling, Reverse modeling, Statistical modeling, Image segmentation, Distance measurement, Distortion

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SPIE Journal Paper | 1 February 2002

Methods cooperation for multiresolution motion estimation

Remy Leconge, Olivier Laligant, Frederic Truchetet, Alan Diou

OE, Vol. 41, Issue 02, (February 2002) https://doi.org/10.1117/12.10.1117/1.1428740

KEYWORDS: Motion estimation, Magnetorheological finishing, Image processing, Optical engineering, Motion detection, Video, Optical flow, Detection and tracking algorithms, Motion models, Image resolution

Proceedings Article | 19 December 2001 Paper

Hierarchical architecture for content-based image retrieval of paleontology images

Jerome Landre, Frederic Truchetet

Proceedings Volume 4676, (2001) https://doi.org/10.1117/12.451084

KEYWORDS: Databases, Wavelets, RGB color model, Image retrieval, Visualization, Image processing, Feature extraction, Content based image retrieval, Image classification, Computing systems

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SPIE Journal Paper | 1 October 2001

Automatic building of a visual interface for content-based multiresolution retrieval of Paleontology images

Jerome Landre, Frederic Truchetet, Sophie Montuire, Bruno David

JEI, Vol. 10, Issue 04, (October 2001) https://doi.org/10.1117/12.10.1117/1.1406505

KEYWORDS: Databases, Wavelets, Visualization, Image retrieval, Image processing, Wavelet transforms, Human-machine interfaces, Image resolution, Image classification, Image filtering

SPIE Journal Paper | 1 July 2001

Karhunen-Loeve transform applied to region-based segmentation of color aerial images

J. Devaux, Pierre Gouton, Frederic Truchetet

OE, Vol. 40, Issue 07, (July 2001) https://doi.org/10.1117/12.10.1117/1.1385166

KEYWORDS: Image segmentation, Image processing algorithms and systems, Image filtering, Image processing, Statistical analysis, Linear filtering, Color image processing, Image classification, RGB color model, Optical engineering

SPIE Journal Paper | 1 January 2001

Subpixel edge detection for dimensional control by artificial vision

Frederic Truchetet, Frederic Nicolier, Olivier Laligant

JEI, Vol. 10, Issue 01, (January 2001) https://doi.org/10.1117/12.10.1117/1.1316089

KEYWORDS: Edge detection, Signal to noise ratio, Detection and tracking algorithms, Signal processing, Machine vision, Pixel resolution, Image processing, Digital filtering, Sensors, Linear filtering

SPIE Journal Paper | 1 January 2001

Machine vision systems in the metallurgy industry

Anne-Claire Legrand, P. Suzeau, Eric Renier, Frederic Truchetet, Patrick Gorria, Fabrice Meriaudeau

JEI, Vol. 10, Issue 01, (January 2001) https://doi.org/10.1117/12.10.1117/1.1314334

KEYWORDS: Machine vision, Laser processing, Image processing, Control systems, Temperature metrology, Cladding, Process control, Cameras, Signal processing, Image filtering

Proceedings Article | 1 January 2001 Paper

Content-based multiresolutiuon indexing and retrieval of paleontology images

Jerome Landre, Frederic Truchetet, Sophie Montuire

Proceedings Volume 4315, (2001) https://doi.org/10.1117/12.410959

KEYWORDS: Databases, Wavelets, Image retrieval, RGB color model, Wavelet transforms, Image processing, Image classification, Content based image retrieval, Digital watermarking, Visualization

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Proceedings Article | 4 December 2000 Paper

Multiresolution analysis with decimated wavelet transform for image zooming

Frederic Nicolier, Frederic Truchetet

Proceedings Volume 4119, (2000) https://doi.org/10.1117/12.408667

KEYWORDS: Reconstruction algorithms, Wavelets, Wavelet transforms, Databases, Fast wavelet transforms, Image processing, Image resolution, Image quality, Signal processing, Resolution enhancement technologies

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SPIE Journal Paper | 1 December 2000

Analysis of compatibility between lighting devices and descriptive features using Parzen's Kernel: application to flaw inspection by artifical vision

Pierre Geveaux, Sophie Kohler, Johel Miteran, Frederic Truchetet

OE, Vol. 39, Issue 12, (December 2000) https://doi.org/10.1117/12.10.1117/1.1323676

KEYWORDS: Light sources and illumination, Chromium, Inspection, Machine vision, Feature selection, Error analysis, Optical engineering, Statistical analysis, Principal component analysis, Image processing

Proceedings Article | 31 August 2000 Paper

Laser-cladding powder spray distribution using a laser sheet illumination and a CCD camera

Fabrice Meriaudeau, Anne-Claire Legrand, Frederic Truchetet

Proceedings Volume 4076, (2000) https://doi.org/10.1117/12.397938

KEYWORDS: Particles, CCD cameras, Image processing, Cladding, Laser processing, Hough transforms, Cameras, Visualization, Distance measurement, Fourier transforms

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Proceedings Article | 19 April 2000 Paper

Multiscale scheme for image magnification

Frederic Nicolier, Olivier Laligant, Frederic Truchetet

Proceedings Volume 3974, (2000) https://doi.org/10.1117/12.382986

KEYWORDS: Wavelets, Reconstruction algorithms, Databases, Wavelet transforms, Image quality, Detection and tracking algorithms, Fast wavelet transforms, Image processing, Saturn, Image resolution

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Proceedings Article | 21 March 2000 Paper

Comparison between two classification methods: application to defects detection by artificial vision in industrial field

Pierre Geveaux, Sophie Kohler, Johel Miteran, Frederic Truchetet, Fabrice Meriaudeau

Proceedings Volume 3966, (2000) https://doi.org/10.1117/12.380069

KEYWORDS: Machine vision, Image segmentation, Defect detection, Image classification, Light sources and illumination, Statistical analysis, Electroluminescence, Pattern recognition, Image quality, Classification systems

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Quality control by artificial vision is getting more and more widespread within the industry. Indeed, in many cases, industrial applications require a control with high stability performance, satisfying high production rate. For texture control, some major problems may occur: uneasiness to show different textures, segmentation features as well as classification and decision phases requiring still to much computation time. This article presents a comparison between two non-parametric classification methods used for real time control of textured objects moving at a cadence of 10 pieces per second. Four types of flaws have to be indifferently detected: smooth surfaces, bumps, hollow knocked surfaces and lacks of material. These defects generate texture variations which have to be detected and sorted out by our system, each flaw apparition being registered to carry out a survey over the production cycle. We previously presented a search for an optimal lighting system, in this case the acquired images were tremendously improved. On these optimal images, we described a method for selecting the best segmentation features. The third step, which is presented here, is a comparison between two multi-classes classification algorithms: the Parzen's estimator and the so-called 'stressed polytopes' method. These two algorithms which require a learning phase are both based on a non-parametric discrimination method of the flaw classes. In one hand, they are both relatively inexpensive in time calculation but on the other hand they present different assets relative to the easiness of the learning phase or the number of useable segmentation features. They also have a different behavior towards the cut out of the features space, especially on the 'cross-classes' border. Their comparison is made through the aforementioned quoted points which are relevant for the evaluation of the discrimination efficiency. Finally, through an industrial example we present the results of such a comparison. The control, a PC based machine, includes the calculation five classification features (calculations were carried out on the local neighborhood of each pixel), five distinct classes for the classification phase and the decision phase. This led to a 3,63% classification error ratio for the best compromise.

Proceedings Article | 21 March 2000 Paper

Subpixel edge detection for dimensional control by artificial vision

Frederic Truchetet, Olivier Laligant

Proceedings Volume 3966, (2000) https://doi.org/10.1117/12.380066

KEYWORDS: Edge detection, Detection and tracking algorithms, Machine vision, Signal to noise ratio, Pixel resolution, Filtering (signal processing), Linear filtering, Image processing, Digital filtering, Signal processing

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Proceedings Article | 29 February 2000 Paper

Markov random fields and block matching for multiresolution motion estimation

Remy Leconge, Olivier Laligant, Frederic Truchetet

Proceedings Volume 3968, (2000) https://doi.org/10.1117/12.378876

KEYWORDS: Motion estimation, Image processing, Optical flow, Motion models, Motion detection, Detection and tracking algorithms, Fourier transforms, Silicon, Information operations, Video

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Proceedings Article | 28 February 2000 Paper

Multiresolution wavelet analysis for simplification and visualization of multitextured meshes

Marc Toubin, David Page, Christophe Dumont, Frederic Truchetet, Mongi Abidi

Proceedings Volume 3960, (2000) https://doi.org/10.1117/12.378891

KEYWORDS: 3D modeling, Wavelets, Image processing, Wavelet transforms, 3D image processing, Visualization, Image resolution, Thermal modeling, Volume rendering, Binary data

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SPIE Journal Paper | 1 February 2000

High-quality still color image compression

Frederic Truchetet, Benjamin Joanne, Francis Perot, Olivier Laligant

OE, Vol. 39, Issue 02, (February 2000) https://doi.org/10.1117/12.10.1117/1.602379

KEYWORDS: Image compression, Wavelets, Image analysis, Cones, Visualization, Data compression, Human vision and color perception, Quantization, RGB color model, Visual system

SPIE Journal Paper | 1 December 1999

Multiscale analysis of range image: its use for growth increment characterization

Alan Diou, Christophe Dumont, Olivier Laligant, Marc Toubin, Frederic Truchetet, Eric Verrecchia, Mongi Abidi

OE, Vol. 38, Issue 12, (December 1999) https://doi.org/10.1117/12.10.1117/1.602305

KEYWORDS: Image analysis, 3D image processing, Wavelet transforms, Wavelets, 3D scanning, Signal analyzers, Algorithm development, Reconstruction algorithms, Image acquisition, 3D acquisition

Proceedings Article | 26 August 1999 Paper

Multiresolution analysis of 3D multimodal objects using a 2D quincunx wavelet analysis

Marc Toubin, Christophe Dumont, Frederic Truchetet, Mongi Abidi

Proceedings Volume 3837, (1999) https://doi.org/10.1117/12.360307

KEYWORDS: 3D modeling, Wavelets, Image processing, 3D image processing, Wavelet transforms, Data modeling, Process modeling, Image segmentation, Digital filtering, Virtual reality

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Proceedings Article | 19 May 1999 Paper

Human cell texture analysis with quincunx spline wavelet transform

Frederic Nicolier, Olivier Laligant, Frederic Truchetet, Anne-Claire Legrand, Sophie Kohler

Proceedings Volume 3644, (1999) https://doi.org/10.1117/12.348481

KEYWORDS: Digital filtering, Wavelets, Wavelet transforms, Image processing, Image analysis, Ions, Image classification, Statistical analysis, Image filtering, Distance measurement

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Proceedings Article | 22 March 1999 Paper

Multiresolution description of range images through 2D quincunx wavelet analysis

Marc Toubin, Frederic Truchetet, Eric Verrecchia, Christophe Dumont, Mongi Abidi

Proceedings Volume 3723, (1999) https://doi.org/10.1117/12.342944

KEYWORDS: Wavelets, Digital filtering, Wavelet transforms, Linear filtering, Image analysis, 3D image processing, Image resolution, Reconstruction algorithms, Analytical research, Data processing

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Proceedings Article | 8 March 1999 Paper

Method of searching segmentation parameters applied to quality control of industrial pieces

Pierre Geveaux, Sophie Kohler, Johel Miteran, Frederic Truchetet

Proceedings Volume 3652, (1999) https://doi.org/10.1117/12.341127

KEYWORDS: Light sources and illumination, Image segmentation, Machine vision, Defect detection, Image quality, Feature extraction, Feature selection, Principal component analysis, Inspection, Nanoimprint lithography

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Proceedings Article | 6 October 1998 Paper

Searching method for an optimal lighting application for defect detection by artificial vision in industrial field

Pierre Geveaux, Sophie Kohler, Johel Miteran, Frederic Truchetet

Proceedings Volume 3522, (1998) https://doi.org/10.1117/12.325755

KEYWORDS: Light sources and illumination, Machine vision, Defect detection, Image quality, Light emitting diodes, Image segmentation, Robots, Computer vision technology, Robot vision, Active vision

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Proceedings Article | 6 October 1998 Paper

Generalization of Shen-Castan and Canny-Deriche filters

Olivier Laligant, Nathalie Reynaud, Frederic Truchetet

Proceedings Volume 3522, (1998) https://doi.org/10.1117/12.325790

KEYWORDS: Signal to noise ratio, Sensors, Edge detection, Image filtering, Interference (communication), Electronic filtering, Digital filtering, Image segmentation, Visualization, Neodymium

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Proceedings Article | 6 October 1998 Paper

Restoration of blurred images by edge detection

Alain Dupasquier, Frederic Nicolier, Gaetan Delcroix, Frederic Truchetet, Olivier Laligant

Proceedings Volume 3522, (1998) https://doi.org/10.1117/12.325766

KEYWORDS: Edge detection, Deconvolution, Image processing, Wavelets, Detection and tracking algorithms, Image processing algorithms and systems, Human vision and color perception, Zoom lenses, Image segmentation, Binary data

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Proceedings Article | 6 October 1998 Paper

B-spline quincunx wavelet transform and implementation in Fourier domain

Frederic Nicolier, Olivier Laligant, Frederic Truchetet

Proceedings Volume 3522, (1998) https://doi.org/10.1117/12.325767

KEYWORDS: Digital filtering, Wavelets, Linear filtering, Wavelet transforms, Analytical research, Image processing, Signal processing, Image filtering, Electronic filtering, Convolution

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Proceedings Article | 6 October 1998 Paper

Multiscale analysis for the characterization of 3D objects

Marc Toubin, Olivier Laligant, Alan Diou, Frederic Truchetet, Eric Verrecchia, Christophe Dumont, Mongi Abidi

Proceedings Volume 3522, (1998) https://doi.org/10.1117/12.325786

KEYWORDS: Wavelets, Ions, Wavelet transforms, 3D image processing, Tin, Reconstruction algorithms, 3D vision, Image analysis, Image acquisition, Sensors

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Proceedings Article | 1 April 1998 Paper

Wavelet packets and multiresolution criterion for color image compression

Frederic Truchetet, Francis Perot, Olivier Laligant

Proceedings Volume 3308, (1998) https://doi.org/10.1117/12.302429

KEYWORDS: Image compression, Wavelets, Data compression, Image analysis, Visualization, Human vision and color perception, Quantization, Image quality, Image resolution, Visual system

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Proceedings Article | 6 March 1998 Paper

Multiscale analysis of 3D surface image: application to clam shell characterization

A. Garcia, Frederic Truchetet, Olivier Laligant, Christophe Dumont, Eric Verrecchia, Mongi Abidi

Proceedings Volume 3313, (1998) https://doi.org/10.1117/12.302445

KEYWORDS: 3D image processing, Wavelets, Ions, Low-intensity laser therapy, 3D applications, Fourier transforms, Lithium, Tin, Image processing, Earth sciences

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Proceedings Article | 2 February 1998 Paper

Machine vision system applied to the characterization of a powder stream: application to the laser cladding process

Fabrice Meriaudeau, Frederic Truchetet, Denis Aluze, Christophe Dumont

Proceedings Volume 3306, (1998) https://doi.org/10.1117/12.301242

KEYWORDS: Image processing, Particles, Cladding, Laser processing, Machine vision, Hough transforms, Light sources and illumination, CCD cameras, Camera shutters, Fourier transforms

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SPIE Journal Paper | 1 October 1997

Real-time characterization of aspect flaws on warped surface by artificial vision

Christophe Dumont, Frederic Truchetet, Denis Aluze, Fabrice Meriaudeau

OE, Vol. 36, Issue 10, (October 1997) https://doi.org/10.1117/12.10.1117/1.601501

KEYWORDS: Cameras, Machine vision, Charge-coupled devices, CCD cameras, Image segmentation, Optical engineering, CCD image sensors, Linear filtering, Image processing, 3D modeling

Proceedings Article | 19 August 1997 Paper

Particle speed using image processing for the laser cladding process

Fabrice Meriaudeau, Christophe Dumont, Denis Aluze, Frederic Truchetet

Proceedings Volume 3101, (1997) https://doi.org/10.1117/12.281282

KEYWORDS: Image processing, Particles, Laser processing, Cladding, Hough transforms, Fusion energy, CCD cameras, Light sources and illumination, Image sensors, Camera shutters

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Proceedings Article | 28 May 1997 Paper

High-speed photography applied to the laser-cladding process

Fabrice Meriaudeau, Frederic Truchetet, Christophe Dumont

Proceedings Volume 2869, (1997) https://doi.org/10.1117/12.273390

KEYWORDS: Particles, Laser processing, Cladding, CCD cameras, Fourier transforms, Fusion energy, High speed photography, Light sources and illumination, Digital signal processing, Coating

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Proceedings Article | 28 May 1997 Paper

Measure of the effiency of CCD realized in CMOS technology: application to snapshot video sensors

Mourad Elloumi, Eric Fauvet, Frederic Truchetet, Guy Cathebras

Proceedings Volume 2869, (1997) https://doi.org/10.1117/12.273348

KEYWORDS: Charge-coupled devices, Sensors, CCD image sensors, Video, CMOS technology, CMOS sensors, Crystals, Electrodes, Interfaces, Lead

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Proceedings Article | 25 April 1997 Paper

Thermal control by artificial vision during hf soldering of metallic tubes

Eric Renier, P. Suzeau, Frederic Truchetet

Proceedings Volume 3019, (1997) https://doi.org/10.1117/12.275181

KEYWORDS: Image processing, Metals, Thermography, Machine vision, Optical filters, Spatial resolution, Profiling, Temperature metrology, CCD image sensors, Charge-coupled devices

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Proceedings Article | 4 April 1997 Paper

Wavelet transform for still color image compression

Frederic Truchetet, Benjamin Joanne, Olivier Laligant

Proceedings Volume 3025, (1997) https://doi.org/10.1117/12.270042

KEYWORDS: Image compression, Wavelet transforms, Image analysis, Visualization, Data compression, Wavelets, Eye, Spatial resolution, Quantization, Image processing

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SPIE Journal Paper | 1 December 1996

Temperature imaging and image processing in the steel industry

Fabrice Meriaudeau, Eric Renier, Frederic Truchetet

OE, Vol. 35, Issue 12, (December 1996) https://doi.org/10.1117/12.10.1117/1.601109

KEYWORDS: Temperature metrology, Image processing, Charge-coupled devices, Optical filters, Sensors, CCD image sensors, Calibration, Cladding, Image resolution, CCD cameras

Proceedings Article | 23 October 1996 Paper

Multiscale merging by a mixed approach for edge detection

Olivier Laligant, Frederic Truchetet

Proceedings Volume 2825, (1996) https://doi.org/10.1117/12.255247

KEYWORDS: Edge detection, Wavelets, Detection and tracking algorithms, Human vision and color perception, Zoom lenses, Sensors, Image processing algorithms and systems, Signal detection, Numerical analysis, Image processing

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Proceedings Article | 23 September 1996 Paper

Image processing applied to the laser cladding process

Fabrice Meriaudeau, Frederic Truchetet

Proceedings Volume 2789, (1996) https://doi.org/10.1117/12.251167

KEYWORDS: Laser processing, Cladding, CCD cameras, Cameras, Image processing, Temperature metrology, Sensors, Particles, Imaging systems, Corrosion

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Proceedings Article | 25 March 1996 Paper

CCD technology applied to laser cladding

Fabrice Meriaudeau, Eric Renier, Frederic Truchetet

Proceedings Volume 2654, (1996) https://doi.org/10.1117/12.236111

KEYWORDS: Cladding, CCD cameras, Laser processing, Sensors, Laser applications, Temperature metrology, Charge-coupled devices, Coating, CCD image sensors, Image processing

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Proceedings Article | 13 March 1996 Paper

Implementation of still-image compression-decompression scheme on FPGA circuits

Frederic Truchetet, Andre Forys

Proceedings Volume 2669, (1996) https://doi.org/10.1117/12.234756

KEYWORDS: Wavelets, Quantization, Image compression, Field programmable gate arrays, Image filtering, Wavelet transforms, Optical filters, Reconstruction algorithms, Biological research, Video compression

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Proceedings Article | 11 October 1994 Paper

Frame of wavelets for edge detection

Frederic Truchetet, Olivier Laligant, E. Bourenanne, Johel Miteran

Proceedings Volume 2303, (1994) https://doi.org/10.1117/12.188766

KEYWORDS: Edge detection, Wavelets, Image segmentation, Image filtering, Digital filtering, Electronic filtering, Signal to noise ratio, Detection and tracking algorithms, Linear filtering, Optimization (mathematics)

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Proceedings Article | 1 January 1993 Paper

Use of snapshot video and real-time image analysis for defect detection

Frederic Truchetet, Patrick Gorria, Michel Paindavoine, Michel Robert

Proceedings Volume 1801, (1993) https://doi.org/10.1117/12.145830

KEYWORDS: Image processing, Edge detection, Defect detection, Video, High speed photography, Photonics, Image analysis, Signal to noise ratio, Image filtering, Video processing

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Showing 5 of 93 publications

Proceedings Volume Editor (12)

SPIE Conference Volume | 26 September 2016

Optics, Photonics and Digital Technologies for Imaging Applications IV

SPIE Conference Volume | 19 May 2014

Optics, Photonics, and Digital Technologies for Multimedia Applications III

SPIE Conference Volume | 23 May 2012

Optics, Photonics, and Digital Technologies for Multimedia Applications II

SPIE Conference Volume | 4 May 2010

Optics, Photonics, and Digital Technologies for Multimedia Applications

SPIE Conference Volume | 26 January 2010

Wavelet Applications in Industrial Processing VII

Showing 5 of 12 publications

Conference Committee Involvement (23)

Optics, Photonics and Digital Technologies for Imaging Applications VII

6 April 2022 | Strasbourg, France

Optics, Photonics and Digital Technologies for Imaging Applications VI

6 April 2020 | Online Only, France

Optics, Photonics and Digital Technologies for Imaging Applications

24 April 2018 | Strasbourg, France

Optics, Photonics and Digital Technologies for Imaging Applications

5 April 2016 | Brussels, Belgium

Three-Dimensional Image Processing, Measurement (3DIPM), and Applications 2015

10 February 2015 | San Francisco, California, United States

Optics, Photonics and Digital Technologies for Multimedia Applications

16 April 2014 | Brussels, Belgium

3D Image Processing, Measurement (3DIPM), and Applications 2014

5 February 2014 | San Francisco, California, United States

3D Image Processing (3DIP) and Applications 2013

6 February 2013 | Burlingame, California, United States

Optics, Photonics and Digital Technologies for Multimedia Applications

17 April 2012 | Brussels, Belgium

3D Image Processing (3DIP) and Applications 2012

24 January 2012 | Burlingame, California, United States

10th International Conference on Quality Control by Artificial Vision

28 June 2011 | Saint-Etienne, France

3D Image Processing (3DIP) and Applications II

26 January 2011 | San Francisco Airport, California, United States

Optics, Photonics and Digital Technologies for Multimedia Applications

12 April 2010 | Brussels, Belgium

3D Image Processing (3DIP) and Applications

18 January 2010 | San Jose, California, United States

Wavelet Applications in Industrial Processing VII

18 January 2010 | San Jose, California, United States

Wavelet Applications in Industrial Processing VI

21 January 2009 | San Jose, California, United States

Optical and Digital Image Processing

7 April 2008 | Strasbourg, France

Wavelet Applications in Industrial Processing V

11 September 2007 | Boston, MA, United States

Wavelet Applications in Industrial Processing IV

2 October 2006 | Boston, Massachusetts, United States

Wavelet Applications in Industrial Processing III

24 October 2005 | Boston, MA, United States

Wavelet Applications in Industrial Processing II

27 October 2004 | Philadelphia, Pennsylvania, United States

Wavelet Applications in Industrial Processing

28 October 2003 | Providence, RI, United States

Photonics Technologies for Robotics, Automation, and Manufacturing

27 October 2003 | Providence, United States

Showing 5 of 23 Conference Committees

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