Dr. Eric Dubois Profile

Dr. Eric Dubois

at Univ of Ottawa

SPIE Involvement:

Author

Publications (24)

Proceedings Article | 4 March 2015 Paper

Image completion using image skimming

Ahmad Al-Kabbany, Eric Dubois

Proceedings Volume 9410, 94100L (2015) https://doi.org/10.1117/12.2084988

KEYWORDS: Expectation maximization algorithms, Binary data, Image processing, Video, RGB color model, Visualization, Optimization (mathematics), Information visualization, Promethium, Data modeling

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Proceedings Article | 4 March 2015 Paper

A novel framework for automatic trimap generation using the Gestalt laws of grouping

Ahmad Al-Kabbany, Eric Dubois

Proceedings Volume 9410, 94100G (2015) https://doi.org/10.1117/12.2083481

KEYWORDS: Video, Image segmentation, RGB color model, Binary data, Associative arrays, Image processing, Image quality, Electrical engineering, Computer science, Opacity

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Proceedings Article | 8 February 2015 Paper

Demosaicking algorithm for the Kodak-RGBW color filter array

M. Rafinazari, E. Dubois

Proceedings Volume 9395, 939503 (2015) https://doi.org/10.1117/12.2083667

KEYWORDS: Optical filters, Reconstruction algorithms, Algorithm development, RGB color model, Digital cameras, Denoising, Sensors, Image processing, Signal to noise ratio, Cameras

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Proceedings Article | 17 February 2014 Paper

Improved global-sampling matting using sequential pair-selection strategy

Ahmad Al-Kabbany, Eric Dubois

Proceedings Volume 9029, 90290H (2014) https://doi.org/10.1117/12.2041322

KEYWORDS: Zoom lenses, Surface plasmons, Colorimetry, Distortion, Image segmentation, Optical filters, Image filtering, Visualization, Opacity, Composites

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SPIE Journal Paper | 29 January 2014

Depth consistency and vertical disparities in stereoscopic panoramas

Luis Gurrieri, Eric Dubois

JEI, Vol. 23, Issue 01, 011004, (January 2014) https://doi.org/10.1117/12.10.1117/1.JEI.23.1.011004

KEYWORDS: Cameras, Panoramic photography, Stereoscopic cameras, Sensors, Systems modeling, Imaging systems, 3D modeling, Mathematical modeling, Lenses, Roentgenium

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SPIE Journal Paper | 8 July 2013 Open Access

Acquisition of omnidirectional stereoscopic images and videos of dynamic scenes: a review

Luis Gurrieri, Eric Dubois

JEI, Vol. 22, Issue 03, 030902, (July 2013) https://doi.org/10.1117/12.10.1117/1.JEI.22.3.030902

KEYWORDS: Cameras, Panoramic photography, Combined lens-mirror systems, Video, Mirrors, Sensors, Visualization, Visual process modeling, Spherical lenses, Stereoscopic cameras

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Proceedings Article | 12 March 2013 Paper

Stereoscopic cameras for the real-time acquisition of panoramic 3D images and videos

Luis Gurrieri, Eric Dubois

Proceedings Volume 8648, 86481W (2013) https://doi.org/10.1117/12.2002129

KEYWORDS: Cameras, Panoramic photography, Stereoscopic cameras, Video, Visualization, Infrared imaging, Calibration, Lenses, Infrared cameras, Information visualization

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Proceedings Article | 21 February 2013 Paper

Cubic-panorama image dataset analysis for storage and transmission

Saeed Salehi, Eric Dubois

Proceedings Volume 8666, 86660H (2013) https://doi.org/10.1117/12.2004844

KEYWORDS: Image compression, Image analysis, Image storage, Image transmission, Video, Panoramic photography, Computer programming, Data storage, Visualization, Image quality

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Proceedings Article | 28 February 2012 Paper

Efficient panoramic sampling of real-world environments for image-based stereoscopic telepresence

Luis Gurrieri, Eric Dubois

Proceedings Volume 8288, 82882D (2012) https://doi.org/10.1117/12.908794

KEYWORDS: Panoramic photography, Cameras, Visualization, Infrared imaging, Sensors, 3D image processing, Distortion, Virtual reality, Computer simulations, Navigation systems

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Proceedings Article | 15 February 2012 Paper

Cubic-panorama image dataset compression

Saeed Salehi, Eric Dubois

Proceedings Volume 8305, 83050O (2012) https://doi.org/10.1117/12.909138

KEYWORDS: Image compression, Video, Panoramic photography, Video compression, 3D image processing, 3D acquisition, Image segmentation, Image processing, Computer programming, Video coding

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Proceedings Article | 28 January 2008 Paper

Improved demosaicking in the frequency domain by restoration filtering of the LCC bands

Markus Beermann, Eric Dubois

Proceedings Volume 6822, 68221O (2008) https://doi.org/10.1117/12.766517

KEYWORDS: Optical filters, Electronic filtering, Nonlinear filtering, Image filtering, Bandpass filters, Linear filtering, Digital filtering, Image quality, RGB color model, Image resolution

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Proceedings Article | 19 January 2006 Paper

Two-dimensional regularized disparity estimation based on the Gabor transform

Xiaodong Huang, Eric Dubois

Proceedings Volume 6077, 60770Z (2006) https://doi.org/10.1117/12.645086

KEYWORDS: Image processing, Calibration, Image segmentation, Image filtering, Fourier transforms, Algorithm development, Image analysis, 3D image processing, Cameras, Partial differential equations

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Proceedings Article | 24 June 2005 Paper

A simplified concentric mosaics system with non-uniformly distributed pre-captured images

Xiaoyong Sun, Eric Dubois

Proceedings Volume 5960, 59603P (2005) https://doi.org/10.1117/12.632659

KEYWORDS: Cameras, Error analysis, Computer simulations, Machine vision, Computer vision technology, Device simulation, Distributed computing, Imaging systems, Stereoscopic cameras, Sun

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In this paper, a simplified implementation of the Concentric Mosaics image-based rendering technique is proposed. The greatest difficulty for an ordinary user in obtaining the pre-captured images for use in the Concentric Mosaics technique is the precise control of the rotation of a long beam. In the proposed Simplified Concentric Mosaics technique, the camera positions where the pre-captured images will be taken are not precisely controlled, but are estimated from the pre-captured images. We use a stereo technique for estimation of camera positions in this special scenario instead of using the traditional camera pose estimation methods of computer vision. The estimation errors have been analyzed and a closed-loop constraint is used to achieve better rotation angle estimation. In addition, a ratio fitting technique is proposed to select good matching features in the special tri-view matching detection scenario, which subsequently improves rotation angle estimation. Another contribution of the paper is a pre-processing step to eliminate or reduce the possible vertical offsets and other distortions in the pre-captured images, which are caused by any possible motions of the camera that deviate from the ideal one. In a column-based view synthesis technique like the proposed method and the conventional Concentric Mosaics technique, these vertical offsets and distortions in the pre-captured images will lower the quality of the synthesized images. Thus our pre-processing can be applied on both the proposed method and the ordinary Concentric Mosaics technique. The pre-captured image data structures of both Concentric Mosaics and the proposed method have been illustrated and the comparison has been made. The proposed technique has a similar data structure and thus a similar rendering algorithm as the conventional Concentric Mosaics technique. As a result, it meets our objective that an ordinary user can obtain the Concentric Mosaics type image data and plug it into a common Concentric Mosaics rendering framework. Simulation results show that the proposed method can achieve good rendering results.

Proceedings Article | 14 March 2005 Paper

View morphing and interpolation through triangulation

Xiaoyong Sun, Eric Dubois

Proceedings Volume 5685, (2005) https://doi.org/10.1117/12.586915

KEYWORDS: Image segmentation, Volume rendering, Cameras, Computer simulations, Affine motion model, Image quality, Visualization, Sun, Information technology, Image resolution

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Proceedings Article | 7 May 2003 Paper

A real-time system for high-level video representation: application to video surveillance

Aishy Amer, Eric Dubois, Amar Mitiche

Proceedings Volume 5022, (2003) https://doi.org/10.1117/12.476352

KEYWORDS: Video, Video surveillance, Semantic video, Video processing, Image segmentation, Motion detection, Surveillance, Feature extraction, Image enhancement, Motion analysis

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Proceedings Article | 12 November 2001 Paper

Minimization of edge effects in images using an extrapolated discrete wavelet transform

Sumit Nath, Eric Dubois

Proceedings Volume 4520, (2001) https://doi.org/10.1117/12.448225

KEYWORDS: Discrete wavelet transforms, Wavelets, Image analysis, Data storage, Visualization, Image compression, Matrices, Image processing, Wavelet transforms, Reconstruction algorithms

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Proceedings Article | 19 April 2000 Paper

Object-based postprocessing of block motion fields for video applications

Aishy Amer, Eric Dubois

Proceedings Volume 3974, (2000) https://doi.org/10.1117/12.382974

KEYWORDS: Image segmentation, Edge detection, Binary data, Motion estimation, Video, Motion analysis, Homogenization, Sensors, Image processing, Motion measurement

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Proceedings Article | 28 December 1998 Paper

Segmentation-based motion estimation for video processing using object-based detection of motion types

Aishy Amer, Eric Dubois

Proceedings Volume 3653, (1998) https://doi.org/10.1117/12.334657

KEYWORDS: Image segmentation, Motion estimation, Motion detection, Image processing algorithms and systems, Image processing, Video, Binary data, Video processing, Image interpolation, Image analysis

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Proceedings Article | 28 December 1998 Paper

Rate-constrained video coding using a flexible representation of motion

Daniel Lauzon, Eric Dubois

Proceedings Volume 3653, (1998) https://doi.org/10.1117/12.334702

KEYWORDS: Motion models, Associative arrays, Distortion, Image compression, Video coding, Computer programming, Motion estimation, Video, Quantization, Image quality

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Proceedings Article | 9 January 1998 Paper

Vector quantization and coding of the chromatic information in an image

Eric Dubois, Jamal Fadli, Daniel Lauzon

Proceedings Volume 3309, (1998) https://doi.org/10.1117/12.298395

KEYWORDS: Colorimetry, Quantization, Image compression, RGB color model, Chromium, Image transmission, Distance measurement, Image processing, Distortion, Associative arrays

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Proceedings Article | 10 January 1997 Paper

Compatible NTSC system with cross-talk-free multiplexing of luminance and chrominance

Stephane Coulombe, Eric Dubois

Proceedings Volume 3024, (1997) https://doi.org/10.1117/12.263198

KEYWORDS: Electronic filtering, Televisions, Computer programming, Linear filtering, Composites, Optical filters, Receivers, Modulation, Multiplexing, Bandpass filters

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Proceedings Article | 21 April 1995 Paper

Motion modeling and estimation for very low bit rate video coding

Janusz Konrad, Abdol-Reza Mansouri, Eric Dubois, Viet-Nam Dang, Jean-Bernard Chartier

Proceedings Volume 2501, (1995) https://doi.org/10.1117/12.206730

KEYWORDS: Motion estimation, Image segmentation, Motion models, Video coding, Image compression, Algorithm development, Low bit rate video, Image fusion, Video, Image processing algorithms and systems

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Proceedings Article | 17 April 1995 Paper

Impact of scan conversion methods on the performance of scalable video coding

Eric Dubois, Nadia Baaziz, Marwan Matta

Proceedings Volume 2419, (1995) https://doi.org/10.1117/12.206351

KEYWORDS: Video, Scalable video coding, Computer programming, Image compression, Linear filtering, Video coding, Spatial resolution, Binary data, Image resolution, Video compression

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Proceedings Article | 1 June 1990 Paper

Two-dimensional code excited linear prediction image coding system

Hung Nguyen, Eric Dubois

Proceedings Volume 1244, (1990) https://doi.org/10.1117/12.19510

KEYWORDS: Image compression, Computer programming, Quantization, Distortion, Image filtering, Image processing, Digital filtering, Image quality, Demultiplexers, Electronic filtering

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