Jean-Baptiste Keck – Personal website

Jean-Baptiste Keck

PhD in Applied Mathematics

Computer Science Engineer


Featured project

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Scattered data interpolation using wavelet trees

Interpolating wavelets and their application to incremental signal reconstruction from scattered data. Learn how to build a wavelet tree such that approximation error locally only depends on a local sample density.

Link to the full article.

All projects

Jean-Baptiste Keck's avatar Gauthier Zirnhelt's avatar

Numerical simulation of cardiac electrophysiology on the GPU

Real time 2D numerical simulation of transmembrane currents in cardiac cells using OpenCL and OpenGL interoperability. The 2D domain is cut into subdomains which make it possible to use multiple GPUs to perform the simulation.

Link to the full article (external link).

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Efficient reconstruction of volumic data from 2D localized ultrasonic images

Conventional 3D ultrasound data reconstruction algorithms have low computational complexity but the huge amount of data generated makes it difficult to compute results within reasonable time on classical computers. In this project we investigate the possibilities of regenerating a 3D isotropic volume from thousands of localized 2D ultrasound images with the help of GPUs.

Link to the full article (external link).

Jean-Baptiste Keck's avatar Alexandre Ribard's avatar

Interpolation of sparse atmospheric pollution data

Interpolation of sparse atmospheric pollution data (PM10 particle concentrations) in the region of Grenoble and embedding into google earth. The overlay is animated so that we can see daily evolution of particle pollution around Grenoble and Lyon.

Link to the github project (external link).

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Visualisation of the trajectory of a bended needle in a 3D CT scan

The Imactis CT-Navigation system consists in a sensor that is inserted into a needle holder which allows to know in real time the position and orientation of the needle. The radiologist moves the needle holder directly on the patient’s skin and visualizes in real time the anticipated trajectory of the needle. So far, the system does only allow to display rectilinear trajectories, 2D slices reconstructed from preoperatory Computed Topography (CT) images. However, the real needle bends under the pressure of various tissues and the radiologist. Needle bending implies that the extracted slices are not flat slices anymore.

Jean-Baptiste Keck's avatar Jocelyn Meyron#x27;s avatar Gauthier Zirnhelt's avatar

Procedural submarine scene generation and rendering

Submarine scene demo in OpenGL and CUDA, featuring, animated bubbles as a CUDA particle system with procedural sprites, animated seeweeds as a CUDA mass-spring system, animated water, and finally real time procedural terrain and cave generation (shader based marching cube and procedural marble texture). This project was the opportunity to explore OpenGL and CUDA interoperability.

Link to the github project (external link).