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Denis Poussart

Computer Vision and Systems Laboratory
Department of Electrical and Computer Engineering
Université Laval
Sainte Foy (Québec), G1K 7P4




email: poussart@gel.ulaval.ca

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Ph. D., M. Sc., Massachusetts Institute of Technology (Electrical Engineering)
Post Doctoral Fellow, University of Leiden (Biophysics)
B. Appl. Sc., Université Laval (Electrical Engineering)
B. A., Université Laval

Research Interests

Activities, responsibilities

Since 1968, I have been a professor in the Department of Electrical and Computer Engineering, and involved in the development of a research thrust in the area of computer vision.

Over the years the Computer and Vision System Laboratory has graduated over 200 master and Ph. D students. The Laboratory is active in 3D vision, virtual environments, image processing, pattern recognition, non-destructive inspection, and biological vision. Its research program involves numerous collaborators.

The Laboratory is an active participant in the Institute for Robotics and Intelligent Systems, a large university - industry consortium which is part of Precarn Associates and which operates under the Networks of Centers of Excellence of Canada. During Phase I and Phase II of IRIS, from 1990 through 1998, I was a coordinator for the network in the area of intelligent perception and a member of its Research Management Committee and our research focused on 3D sensing, modeling and supporting architectures.

In Phase 3 of IRIS, which started in April 1998, I have been closely connected with Vertex, a 4-year Project whose acronym stems from "Virtual Environments: from 3d Representations to Task planning and EXecution".

Vertex objective is to effectively integrate resources in advanced sensing, modeling, simulation and interaction in order to support the planning, training / rehearsal and execution of complex tasks. Issues related to detailed behavior representation and rigorous control of time are paramount. Furthermore, since such applications typically involve interactions between several users with different needs, the Vertex HMI provides for multiple views of a given (complex) scenario. In order to achieve high performance computation of extensive models, its simulation engine is implemented as a cluster which is while from the Beowulf approach but which uses a hard real time OS and object sharing through real-time Corba. Up-to-date information is available here.

The on-going test beds of Vertex include the maintenance of underwater structures and minimally invasive surgery. These are being developped in a VR facility which we have been building through funding from the Canadian Foundation for Innovation.

Other current responsibilities include

Publications (partial list, refereed / invited)

Poussart, D., Boule de cristal: les technologies en 2005. Conférence présentée en février 2002 dans le cadre des midi-conférences du CRIM. En format powerpoint ici.

Poussart, D., D. Laurendeau, F. Bernier, M. Simoneau, N. Harrison, D. Ouellet, C. Moisan, Designing Virtual Environments for Critical Transactions and Collaborative Interventions: The Vertex / Apia Framework for Networked, Physics-Compliant Objects, Proceedings of International Conference on Advances in Infrastructure for Electronic Busuiness, Science and Education on the Internet, SSGRR-2000, l'Aquila, Italy, July 31 - August 6, 2000. pdf copy and powerpoint presentation.

Poussart, D., Bernier, F., Simoneau, M., Ouellet, D., Harrison, N., Virtual Environments for Critical Intervention Support: Modeling, Design and Implementation Issues, Proceedings 3DIM'99, Second Annual Conference on 3-D Imaging and Modeling. Ottawa, October 1999 (invited).

Poussart, D., Bernier, F., Simoneau, M., Ouellet, D., Harrison, N., Virtual Environments for Strategic and Tactical Support of Critical Interventions: a Challenge in Integrating Computer Vision and (many) other Resources, Proceedings Vision Interface'99, May 1999 (invited).

Poussart. D., Position Paper, Proceedings of the Workshop on Distributed Virtual Environments, IEEE VR'99 Conference, Houston, March 1999 (invited).

Arias-Estrada, M., M. Tremblay, D. Poussart, "A Motion Vision Sensor Architecture with Asynchronous Self-Signalling Pixels," CAMP 97 (Computer Architectures for Machine Perception), Boston, MA, Oct. 1997, pp 75-83.

Arias-Estrada, M., M. Tremblay, D. Poussart, "Computational Motion Sensors for Autoguided Vehicles," 30th International Symposium on Automotive Technology & Automation (ISATA'97), Robotics, Motion and Machine Vision in the Automotive Industries. Florence, Italy, June 1997, pp 101-108.

M. Arias-Estrada, M. Tremblay, D. Poussart, "A Focal Plane Architecture for Motion Computation", Journal of Real-Time Imaging, Special Issue on Special-Purpose Architectures for Real-Time Imaging, Vol. 2, No. 6, Dec. 1996, pp 351-360.

Dallaire S., M. Tremblay, M., D. Poussart, Smart Sensing VLSI Architecture for the Embedded Extraction of Dominant Points along 2D Contours, in press in Proc. of Advanced Focal Plane Arrays and Electronic Cameras Interbnational Conference, Berlin, 7- 11 October, 12pp., 1996.

Tremblay, M., S. Dallaire and D. Poussart, Low level Segmentation using CMOS Smart Hexagonal Image Sensor, Proc. of IEEE / Computer Architecture for Machine Perception Conference (CAMP'95), Como, Italy, pp. 21-28, 1995.

Poussart, D., Tremblay, M., Integrated Smart Vision Sensing, Proc. First World Congress in Intelligentt Manufacturing, Processes and Systems, San Juan, Vol.1, 660 -667, 1995.

Freedman, P., E. Papadopoulos, D. Poussart, C. Gosselin, J. Courteau, ATREF: Application des technologies robotiques aux équipements forestiers, Proc. IEEE Can. Conf. on Electrical and Computer Eng., Montréal, 1141-1143, 1995.

Ouellet, D., M. Tremblay, D. Poussart, FPGA Implementation of an Interface to Connect Memory-Mapped Devices to the TMS320C40, Third Can. Workshop on Field-Programmable Devices (FPD'95) Technology, Tools and Applications, Montréal, 218-221, 1995.

Bergevin, R., Laurendeau, D., Poussart D., Registering Range Views of Multi-Part Objects, Computer Vision and Image Understanding, 61, 1-16, 1995.

Poussart, D., Tremblay M., Smart Vision Sensing for Robotics, in Intelligent Control Systems:: Theory and Applications, M. Gupta and N. K. Sinha, Ed., IEEE Press, 605 - 628, 1995.

Taalebinezhaad, A., D. Poussart, Depth Map from Two Monocular Images, Proc. SPIE Conf. on Intelligent Robots and Computer Vision XIII: 3D Vision, Product Inspection and Active Vision, Boston, Vol. 2354, 357-368, 1994.

Eustache, E., Gingras, D., Poussart, D., Hybrid System for Automatic Target Recognition, Proceedings of the SPIE Con ference on Optical Imaging and Instrumentation, Vol. 2269,San Diego, 24-29 juil. 1994.

Ricard, B., Gosselin, C. M., Le-Huy, H., Poussart, D., On the Development of a High Performace Robot Controller with an Open Architecture for Research Applications, Laboratory Robotics and Applications, 6, 273-282, 1994.

Tremblay, M., Savard, M., Poussart, D., Medium Level Scene Representation Using a VLSI Smart Hexagonal Sensor with Multi-Resolution Edge Extraction Capability and Scale Space Integration Co-Processing, Proceedings of the IEEE Computer Vision and Pattern Recognition Conference (CVPR 94), Seatle, 632-637, 1993.

Méthot, F., Mokhtari M., Laurendeau, D., Poussart, D., Sensor Fusion of 2D and 3D Data for the Processing of Images of Dental Imprints, Proc. SPIE Conference on Intelligent Robots and Computer Vision XII: Algorithms and Techniques, Boston, 2055, 646-556, 1993,

Poussart, D., Opportunities for Integrating Early-vision Computation Algorithms and VLSI Technology to the Development of Smart Sensors, Proceedings VLSI'93, (invité), Grenoble, 145-150, 1993.

Taalebinezhaad A., Poussart, D., Visual Tracking without Feedback Control,Proc. SPIE Conference on Intelligent Robots and Computer Vision XII: Algorithms and Techniques, Boston, 2056, 275-285, 1993.

Hébert, P.,Laurendeau D., Poussart D., Surface Profile Description: Invariant Stable Extraction of Straight Line Segments, Proc. Vision Interface 93, Toronto, 1993.

Hébert, P., Laurendeau D., Poussart D., Scene Reconstruction and Description: Geometric Primitive Extraction from Multiple View Scattered Data, Proc. CVPR'93, New York, 1993.

Méthot, J.-F., Poussart D., Fusion of Registered 2D Intensity and 3D Range Data: Application to the Differential Light Absorption Technique, Proc. Vision Interface 93, Toronto, 1993.

Boulanger, D., Poussart D., Unsupervised Neural Net Classifier for Semantic Graphs, Proc. Vision Interface 93, Toronto, 1993.

Méthot, J.-F., Poussart D., Bergevin R., Fusion of Registered 2D and 3D Range Data on a SIMD Machine, Proc. SPIE Conference on Sensor Fusion and Aerospace Applications, Orlando, 1993.

Tremblay, M., Poussart D., Hexagonal Sensor with Embedded Analog Image Processing for Pattern Recognition, Proc. IEEE Custom Integrated Circuit Conference, San Diego, 1993.

Tremblay, M., Laurendeau D., Poussart D., Multi Module Focal Plane Processing Sensor with Parallel Analog Support for Computer Vision, Proceedings Symposium on Integrated Systems, Seattle, 1993.

Tremblay, M., Laurendeau D., Parent F., Poussart D., Smart 2D Hexagonal Sensor with Integrated Analog Processing for Multiresolution Edge Extraction, Proceedings International Conference on Intelligent Autonomous Systems, Pittsburg, 632-642, 1993.

M. Tremblay, Laurendeau D., Poussart D., High Resolution Smart Image Sensor with Integrated Parallel Analog Processing for Multiresolution Edge Extraction, Robotics and Autonomous Systems, 11, 231-242,1993.

Lepage, R., Poussart, D., A Multiresolution Neural Network for the Fusion of Stereo and Shape from Shading in Machine Vision, Proceedings Conference on Intelligent Robots and Computer Vision XI: Biological, Neural Nets and 3D Methods, SPIE, Vol. 1826, 238 - 249, Boston, 1992.

Aubin M., Côté J., Laurendeau D.and Poussart D., Analysis of 3D Images of Dental Imprints, Proceedings SPIE Symposium on Biomedical Optics 92, Los Angeles, 1992.

Lepage, R., Poussart, D., Multiresolution Edge Detection, Proeedings. ICJNN'92: International Joint Conference on Neural Networks, Baltimore, 438-443, 1992.

Bergevin, R., Laurendeau, D., Poussart, D., Estimating the 3D Rigid Transformation Between Two Range Views of a Complex Object, Proceedings 11th IAPR Intl. Conf. on Pattern Recognition, The Hague, 478-482, 1992.

Gao, G., Hendren, L., Panangaden, P., Feeley, M., Tao, L., Lebensold, J., Poussart, D., Towards a Portable Parallel Programming Environment, Proceedings of Supercomputing '92, Montréal, juin 1992.

Tremblay, M., Poussart, D., Focal Plane VLSI Processing for Multiresolution Edge Extraction, Proceedings SPIE Visual Information Processing at OE/Aerospace Sensing '92 , Orlando, 1992.

Parent, F., Tremblay, M., Laurendeau, D., Poussart, D., A VLSI Implementation of a Light Sensor With Embedded Focal Plane Processing Capabilities, Proceedings IROS '92, Raleigh, 367-372, 1992.

Maldague, X., Vavilov, V., Côté, J., Poussart, D., Thermal Tomography for NDT of Industrial Materials, Canadian Society for NonDestructive Testing Journal, mai , 22 - 32, 1992.

Laurendeau, D., Houde, R., Samson, M., Poussart, D., 3D Range Acquisition Trough Differential Light Absorption, IEEE Transactions on Measurements and Systems, 41, 622 - 629, 1992.

Picard, D., Charara, J., Guidoin, R., Haggag, Y., Poussart, D., Walker, D., How, T., Phonocardiogram Spectral Analysis Simulator of Mitral Valve Prosthesis, Texas Heart Institute Journal, 4, 132 -146, 1992.

Laurendeau, D., Trottier, Y., Poussart, D., Lessard, J., The Application of Computer Vision to the Removal of Tie-Wires in a Live-Line Maintenance Operation, Machine Vision and Applications, 4, 3-13, 1991.

Awards, distinctions


My current undergraduate teaching, cource GEL-21405, is in the area of design, which I have always seen as being at the core of an engineer's education. Web sites (in French) are available here and here with current activities and discussions. For a number of years I have also been teaching graduate cource in Scientific Writing and Communication, GEL-64324.


I was born in St.Denis d'Oléron, France and am signaled in this town web site. I received the Canadian citizenship in 1954.

My wife, Nicole, an historian, has developped heritage walking tours recalling the outstanding events that took place in Sillery, including the assault upon Québec by the British troups in 1759, an event of tremendous importance for the future evolution of North America.

We have three daughters. Caroline is a program manager in international development at Socodevi, Brigitte is an analyst in information technologies at CEFRIO and Pascale is a Ph.D. candidate in Earth and Planetary Science at Harvard.

In an earlier part of life, my research has been mainly in the area of communication biophysics and I have been a visiting researcher at the Marine Biological Laboratory, in Woods Hole, for extended periods from 1973 through 1985. This wonderful area is second home to our family.

And here is a more recent photo!