Biography

Laurent Jacques is Professor and FNRS Senior Research Associate at the Image and Signal Processing Group (ISPGroup), in the Mathematical engineering (INMA) department of the ICTEAM institute at UCLouvain, Belgium. His research focuses on sparse representations of signals (1-d, 2-d, sphere), compressive sensing, 1-bit and quantized compressive sensing, computational imaging, and inverse problems in optics, astronomy, and biomedical sciences.

Interests
• Compressive Sensing
• Computational Imaging
• Image and Signal Processing
• Inverse Problems in Optics, Astronomy, and Biomedical Sciences
Education
• PhD in Mathematical Physics, 2004

UCLouvain, Belgium

• MSc in Mathematical Physics, 1998

UCLouvain, Belgium

• BSc in Physics, 1996

UCLouvain, Belgium

Events

Recent & upcoming talks, seminars, …

Interferometric Lensless Endoscopy: Rank-one Projections of Image Frequencies with Speckle Illuminations
Interferometric Lensless Endoscopy: Rank-one Projections of Image Frequencies with Speckle Illuminations
The importance of phase in complex compressive sensing

Posts

Last 3 posts …

There is time for dithering in a quantized world of reduced dimensionality!

I’m glad to announce here a new work made in collaboration with Valerio Cambareri (UCL, Belgium) on quantized embeddings of low-complexity vectors, such as the set of sparse (or compressible) signals in a certain basis/dictionary, the set of low-rank matrices or vectors living in (a union of) subspaces.

Quasi-isometric embeddings of vector sets with quantized sub-Gaussian projections


Testing a Quasi-Isometric Quantized Embedding

It took me a certain time to do it. Here is at least a first attempt to test numerically the validity of some of the results I obtained in “A Quantized Johnson Lindenstrauss Lemma: The Finding of Buffon’s Needle.

Most recent publications

(preprints, conference & journal papers)

(2021). The Separation Capacity of Random Neural Networks. DeepMath” (virtual event), November 4, 2021..

(2021). Sparse Factorization-based Detection of Off-the-Grid Moving targets using FMCW radars. Proceedings of ICASSP 2021, Toronto, Ontario, Canada, 6-11 June 2021.