Passive Optical

Level-1 Processing

The Level-1 Processing Module is responsible for the generation of level-1 products, from level-1a to level-1c. Raw Data is inputted in the module and processed to remove instrument noises, recover the pixel uniformity and perform calibration and geolocation of the acquired image.

The L1 simulation contains the following steps:

  • The Removal of Noises and Recovery of Pixel Uniformity Block treats the data, in Digital Numbers, so all or some of the instrumental noises are corrected. In addition, and due to bad/wrong pixels, the pixel uniformity is recovered in this Block
  • The Calibration Block performs the radiometric, spectral and dark noise calibration based on instrument measures on a calibration target
  • The Geolocation Block calculates the latitude-longitude of each pixel of the image


Biblos.COTS This is Biblos COTS package with installation script. Script installs libraries:- kissFFT- boost- netcdf- zlib- hdf5- eigen

Biblos.Commons This is a package common for all the Blocks and Modules. Commons contain helper functions e.g. for reading NetCDF or parsing XML files as well as Blocks and Modules interfaces.

Tool: Tiff to NetCDF converter BIBLOS works with NetCDF format for the images. This is a tool to convert Tiff to NetCDF. It is external to BIBLOS, the user shall convert the image offline. THe package includes an executable, a README file (with instructions) and an example auxiliary file.