Through my education and academic experience I have acquired a wide variety of skills in the domains of computer graphics, acoustics and scientific software programming. During my PhD research, I developed a novel technique based on the hierarchical radiosity method allowing to perform combined graphics/sound rendering at interactive rates. Further developments of my work are also promising, in particular room/exterior acoustics prediction and radiowave propagation simulation with application to telecommunication or high speed wireless local networks.
TOP  Current Projects

Accurate modeling of sound reflections and diffraction for high quality virtual acoustics simulations using geometrical and statistical approaches. Comparison with measurments     3D audio bridge including environmental sound propagation effects for teleconferencing and network-based virtual environments     Simulation of visual reflectance properties from surfaces acting as diffraction gratings. Extension to modeling of sound scattering by complex 3D objects or object clusters.     Combined beam tracing and Monte-Carlo integration for efficient high quality global illumination     Hierarchical layered depth images for efficient Monte-Carlo global illumination with complex models

TOP  Computer Graphics
Experience

Good general knowledge of 3D computer modeling, animation and rendering techniques     Expertise in global illumination radiosity technique, including dynamic environments     Expertise in physically based computer animation and deformable models     Expertise in implicit surface modeling and animation

TOP  Acoustics Experience

Good general knowledge of wave propagation, diffraction phenomena, indoor and outdoor acoustics, finite element techniques, psychoacoustics, spatial hearing     Good general knowledge of digital filtering/DSP techniques, multi-channel audio codecs     Expertise in geometrical acoustic modeling techniques     Expertise in combined audio/video rendering pipelines, interactive auralization in virtual dynamic environments

TOP  Software Development

Programming languages	C++, C, Tcl and UNIX shells, TurboPascal, Motorola 680x0 assembler
Graphics programming	OpenInventor (VRML), OpenGL, Motif, tclInventor, tclMotif
Audio programming	SGI audio hardware and SGI media library API
Systems	UNIX, SGI IRIX, PCs and MACs
Miscellanea	Adobe Photoshop, MS Word, Adobe Première, LaTeX, SoftImage, AutoCAD, RapidApp, MS PowerPoint, Maple, Matlab

TOP  Industrial Collaborations

CSTB   since 1997	Centre Scientifique et Technique du Bâtiment   Validation of the temporal hierarchical radiosity technique for room acoustics prediction
CNET   since 1997	Centre National d'Etude des Télécommunications   "Télémedia" teleconferencing project
IFP   1994	Institut Français du Pétrole   Levels of detail and VRML

TOP  Education

PhD Computer Science   1995-1998	iMAGIS-GRAVIR/IMAG, Grenoble, France   Simulation of high quality virtual sound fields for interactive computer graphics applications. Extending the radiosity method to count for general wave propagation phenomena, including temporal and spectral aspect, diffraction effects, etc.
DEA Images, Vision & Robotics   1994-1995	Institut National Polytechnique de Grenoble, France (distinction)
Maîtrise in Computer Science   1993-1994	Université Joseph Fourier, Grenoble, France (distinction)
Licence in Computer Science   1992-1993	Université Joseph Fourier, Grenoble, France (honors)
DEUG A (Maths & Physics)   1990-1992	Université Joseph Fourier, Grenoble, France (honors)
Bac C (A levels Math/Physics)   1990	Lycée E. Mounier, Grenoble, France (honors)

TOP  Other Information

Nationality	French
Languages	French, English. Notions of Spanish, Greek and Japanese.
Leisure and Interests	Home theater, hi-fi, comics, movies, cooking, Chinese and Japanese calligraphy, literature, arts... a bit of everything :-)

TOP  References

Ingrid Carlbom   Department Head	Visual Communications Research   Bell Laboratories/Lucent Technologies   600-700 Mountain Avenue, Room 2D-512   Murray Hill, NJ 07974  USA	carlbom@research.bell-labs.com   tel: +1 908.582.5501   fax: +1 908.582.7308
Claude Puech   Professor UJF, Grenoble   GRAVIR Lab Director	iMAGIS-GRAVIR/IMAG   BP-53   38041 Grenoble cedex 9   France	Claude.Puech@imag.fr   tel: +33 4.76.51.46.90   fax: +33 4.76.63.55.80
François X. Sillion   Senior INRIA Researcher	iMAGIS-GRAVIR/IMAG   BP-53   38041 Grenoble cedex 9   France	Francois.Sillion@imag.fr   tel: +33 4.76.51.43.54   fax: +33 4.76.63.55.80

TOP  Selected Publications

• Simulating High Quality Dynamic Virtual Sound Fields For Interactive Graphics Applications. N.Tsingos, PhD thesis, Universite Joseph Fourier Grenoble I, December 1998.

 
• Fast rendering of sound occlusion and diffraction effects for virtual acoustic environments. N.Tsingos and J.D.Gascuel, 104th Audio Engineering Society Convention, preprint no. 4699 (P4-7), Amsterdam, Netherlands, May 1998.

• A general model for the simulation of room acoustics based on hierarchical radiosity. N.Tsingos and J.D.Gascuel, technical sketch, Visual Proceedings of Siggraph'97, Los Angeles, USA, August 1997.

 
• Soundtracks for computer animation: sound rendering in dynamic environments with occlusions. N.Tsingos and J.D.Gascuel, Proceedings of Graphics Interface'97, Kelowna B.C., Canada, May 1997.

 
• Adaptive sampling of implicit surfaces for interactive modeling and animation. M.Desbrun, N.Tsingos and M.P.Gascuel, Computer Graphics Forum, 15(5), December 1995.

 
• Automatic reconstruction of unstructured 3D data: combining medial axis and implicit surfaces. E.Bittar, N.Tsingos and M.P.Gascuel, Proceedings of Eurographics'95, Maastricht, Netherlands, 1995.

 
• Implicit surfaces for semi-automatic medical organs reconstruction. N.Tsingos and M.P.Gascuel, Proceedings of Computer Graphics International'95, Leeds, UK, 1995.

 
• 3D models of the lips for realistic speech animation. T.Guiard-Marigny, N.Tsingos, A.Adjoudani, C.Benoit and M.P.Gascuel, Proceeding of Computer Animation'96, Geneva, Switzerland, 1996.

 
• Building and exploiting levels of detail: An overview and some VRML experiments. J.L.Pajon, Y.Collenot, X.Lhomme, N.Tsingos, F.X.Sillion, P.Guilloteau, P.Vuylsteker, G.Grillon and D.David, Proceedings of VRML'95, San Diego, USA, 1995.