AVNIR2 real-time raw data processing for images and product generation

Luca Mellano(1) and Luigi Scozzafava(1)

(1) CHELYS srl, Via Erasmo Gattamelata 3, 00176 Rome, Italy


In the field of earth observation and distributing satellite imagery, Chelys has developed and provided ESA with a system that generates high resolution images in real time, MIRAVI. This has allowed ESA to take advantage of high resolution images as never before, making them available just a few minutes after the data reaches the Earth. Using the same principle we developed a processor capable of generating AVNIR2 full resolution images in real-time starting from the raw data (Level0). The advantage is that the user can immediately access the high resolution image product before submitting an order to the ALOS PDS (through a system very similar to MIRAVI) and browse images from an online catalogue allowing users to make geographical or time based queries, etc. As a result of the raw data processing we also generate Level0 and Level1 (radiometrically and geometrically corrected) products following the standards defined by ESA product specifications allowing the products to be potentially handled by any multimission facility. In the very near future, as soon as we finish the data validation phase, we will also produce a Level2 product based on reflectancies.


Symposium presentation


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