Context

CS Group responsabilities for Sentinel-2 Instrument Processing Facility are as follows:

Maintenance of all the IPF components related to radiometric corrections, orthorectification, resampling and JPEG2000 compression. CS supervises a subcontractor (Exprivia) for some L0 components.

The features are as follows:

L0 & L1 Sentinel-2 Processors, including:
IDP-SCs: IPF components for Radiometric / Geometric corrections and orthorectification; JPEG2000 compression; Metadata reading and updating
OLQC: OnLine Quality Control of generated products

Project implementation

The project objectives are as follows:

Development and Maintenance of the L0 and L1 operational processors integrated in the Sentinel-2 ground segment (S2A & S2B PS).

The processes for carrying out the project are:

V Cycle, Ticketing workflow for evolving maintenance

Technical characteristics

The solution key points are as follows:

The image processing and image quality components are subject to strong requirements for quality and time performances to be reached in a single core execution. Optimization and validation tasks are key points for project success in particular for radiometric (deconvolution and denoising) and geometric corrections (resampling, refining).

Archi Picture

The main technologies used in this project are:

| Domain | Technology(ies) | |——–|—————-| |Production software (IDE, DEVOPS etc.)|OTB: (Orfeo ToolBox) used as a framework of development for the IDP-SC implementation S2GEO: based on Rugged GDAL: for reading images OGR: for vectors computing Kakadu: for JPEG 2000 image compression (IPF CFI). The OLQC is based on Amalfi (IPF CFI).|