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Direct imaging of exoplanets involves very low signal-to-noise ratio data, that need to be carefully acquired and processed. Multi-band devices enable the simultaneous record of images in different spectral bands. They can be used either for spectroscopy purposes or to improve detection capabilities. This work aims at detecting a potential source, when the source moves on a random background spatially...
Astronomical instruments able to detect the direct light of extra solar planets are currently under development. This paper focuses on instruments that will acquire a set of successive images where the planet (the source in more general purposes) moves in a known manner on a speckled background. Performant signal processing tools are required to account for the very low signal-to-noise ratio of the...
With the current development of astronomical instruments able to detect the direct light of exoplanets, such as the very large telescope instrument SPHERE, statistical tools need to be developed in order to make precise detection and estimation assessments. We propose a detection algorithm that delivers an estimation of the position and the intensity of the potentially detected exoplanet. Because...
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