David GELDREICH Antibes - FRANCE E-mail : David Geldreich LinkedIn Github

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Studies

• 1991-1992 : Images and Sounds Master at Télécom Paris (digital image/signal processing, video, acoustic, computer graphics)
• 1988-1991 : École Centrale Paris, major : real-time computing
• 1986-1988 : Preparatory classes P' at Lycée Louis-le-Grand in Paris
• 1986 : Baccalauréat C in Nice.

Experience

• January 2008 to today : Freelance software engineer
  • Video Village : video processing OpenFX plugins in CUDA for DaVinci Resolve on Windows/Linux
  • TomTom : port 3D rendering engine from OpenGL, OpenGL/ES to Metal (macOS, iOS)
  • Airbus : optimize CUDA and multi-core CPU code for computer vision algorithms
  • SIGMASIX : various art installations using Qt/QML, computer vision, Art-Net DMX
  • GarageCube : Modul8 (real-time video mixing software for OSX)
  • ObjC/C++ multimedia playback engine using OpenGL
  • Python bindings to allow extension by users
  • GarageCube/1024 architecture : MadMapper (projection mapping software for OSX)
  • C++ 3D warping/mapping engine using OpenGL
  • Qt UI
  • Trivial Mass/Tissot: DMX sequencing OSX software, remote control application for iPhone
  • Other projects under NDA : iPhone/iPad 3D applications, iPhone Art-Net DMX fixture, performance tuning, ...
• March 2001 - December 2007 : INRIA Sophia Antipolis :  Developments and experiments support
  
• Virtual reality platform :
  • Implementation and support of a PC based solution (Linux/Windows).
  • Support the development of demonstrators.
  • Adaptation of the Ogre3D rendering engine to virtual reality.
  • Coupling parallel computing - visualization (MPI, VTK).
• Software development in research laboratories :
• 2006-2007 : ARIANA : objects recognition in satellite images
• 2005-2006 : REVES : OgreVR : a virtual reality extension for Ogre3D
• 2004 : EPIDAURE : adaptation of an hepatic surgery simulator for virtual reality
• 2003 : CHIR : optimization of a telesurgery system
• 2001-2005 : Support of a computing cluster (~300 processors)
• 2003-2004 : Technical lead of GRID5000
• 2001-2003 : Head of the software engineering team.


• October 97 - March 2001 : REALViZ (software for visual effects) : Founder
• MatchMover application architect and team leader.
• Design matchmoving workflow
• Enhance 2D tracking algorithms
• Optimize 3D solver
• Export to all major 3D packages : Maya, Softimage|3D, 3DS Max, Lightwave, CINEMA 4D, Houdini.
• Software architect.
• Specification/Implementation of the image processing API; algorithms optimization.
• Development of a pay-per-use system; cryptography : DES, Blowfish, RSA, MD5, SHA1.
• Software engineering : source configuration management, bugs, software life-cycle, tests, C++ coding rules, continuous integration.
• Multi-platform support : Windows NT, IRIX, Linux, MacOS X.
• System administrator : Windows NT/98, Linux, IRIX.


• September 95 - October 97 : INRIA Sophia Antipolis : Research engineer project PASTIS/ARIANA (satellite image processing)
• Organization of IT development, user support, system administration.
• Development of parallel algorithms (image processing, optimization).
• Implementation/management of parallel computing cluster (Linux, OSF/1): User support for parallelization of their code, management of tools/libraries (PVM, MPI, ...).
• Development of a parallel processor (CNN : Cellular Neural Network) for image segmentation using Markov random field.


• December 94 - September 95 : INRIA Sophia Antipolis : Research engineer project MEIJE (parallelism, synchronization, real-time)
• System administration and users support.


• October 93 - December 94 : I.N.A. (Institut National de l'Audiovisuel) Bry-sur-Marne : R&D Engineer
• Software for real-time face analysis and synthesis on a SGI computer.
• Prototype of a 3D air traffic control visualization system for the DGAC (the french FAA).


• October 1992-1993 : C.E.A. Bruyères le Châtel : Military service
• Reconstruction of penumbra images containing image dependent noise and scientific visualization.


• July-September 1992 : Dassault Electronique : Master internship
• Pattern recognition using invariants calculus and neural networks.

Spoken languages

• French (mother tongue)
• English (fluent)

Technical skills

• Operating systems : macOS, Windows, Linux, iOS, Android.
• Languages : C++, C, ObjC, ARM/NEON/SVE/AVX/SSE assembly.
• Scripts : Python, Lua, Perl, shell, SWIG, pybind11.
• Frameworks : Qt, boost.
• Object oriented design, Design Patterns.
• Software engineering : SVN, Git, CMake, VisualStudio, Xcode, Bugzilla, Jira.
• Code analysis/optimization tools : VTune, Instuments, Valgrind.
• Parallel computing : MPI, Intel® TBB, OpenCL, CUDA, OpenMP.
• 3D graphics :
• Libraries : OpenGL, Metal, VTK, PCL, ARKit.
• Engines : Unreal Engine, Unity, Ogre3D.
• Softwares : 3DS Max, Maya, Cinema 4D, LightWave.
• GPU programming (Cg, HLSL, GLSL, SPIR-V, ...).
• Cloud platforms :
• AWS (Amazon Web Services): EC2, S3, Lambda, Gateway, Rekognition, SageMaker
• GCP (Google Cloud Platform): Compute Engine, Cloud Storage
• Deep Learning frameworks : Caffe, CoreML, Keras, ONNX, PyTorch, TensorFlow, TensorRT
• Computer vision : OpenCV (contributor)
• Media libraries : QuickTime/AVFoundation, DirectShow, ffmpeg.
• Digital image processing, computer graphics - animation, analog and digital video, acoustic/sound, neural networks.

Extra-curricular activities

• 2001-2007 : C++ instructor at Ecole des Mines de Paris - ISIA à Sophia-Antipolis.
• Sports : sailing, windsurfing, wingsurfing, rowing, trekking, kayaking.
• 1989-1990 : design/development of a world speed record holder sand yacht (151,55 km/h in 1991).

Last modification $Date: 2022-10-03 20:01:49 +0100 $