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Gilles Delmaire

4 accepted papers

2023

Joint Unmixing And Demosaicing Methods For Snapshot Spectral Images

ICASSP 2023accepted

Recent technological advances in design and processing speed have successfully demonstrated a new snapshot mosaic imaging sensor architecture (SSI), allowing miniaturized platforms to efficiently acquire the spatio-spectral content of the dynamic scenes from a single exposure. However, SSI systems h…

Cited by 0SourceScholar
2021

In Situ Calibration of Cross-Sensitive Sensors in Mobile Sensor Arrays Using Fast Informed Non-Negative Matrix Factorization

ICASSP 2021accepted

In this paper, we assume a set of mobile geolocalized sensor arrays observing an area over time. Each of these arrays consists of heterogeneous and cross-sensitive sensors, i.e., the sensor readings provided by one of such sensors also depends on the readings of the other sensors in the array. We fu…

Cited by 0SourceScholar
2021

Random Projection Streams for (Weighted) Nonnegative Matrix Factorization

ICASSP 2021accepted

Random projections recently became popular tools to process big data. When applied to Nonnegative Matrix Factorization (NMF), it was shown that, in practice, with the same compression level, structured random projections were more efficient than classical strategies based on, e.g., Gaussian compress…

Cited by 0SourceScholar
2016

Blind mobile sensor calibration using an informed nonnegative matrix factorization with a relaxed rendezvous model

ICASSP 2016accepted

In this paper, we consider the problem of blindly calibrating a mobile sensor network-i.e., determining the gain and the offset of each sensor-from heterogeneous observations on a defined spatial area over time. For that purpose, we previously proposed a blind sensor calibration method based on Weig…

Cited by 0SourceScholar