BioI started working at CNES in 1990, in charge of the image quality of optical earth observation satellites. 15 years later, still as a CNES employee, I moved to the CESBIO research laboratory. I am now a researcher specialized in physics of optical measurements, which are used in pre-processing methods, such as cloud detection, atmospheric correction, monthly syntheses.
Our mature methods are released as open source software, on CNES github platform. As we benefit from a lot of codes from the OSGEO community, the least we can do, as a public entity, is contributing.