  The proposed Earth observation (EO) based value adding system (EO VAS),
hereafter identified as AutoCloud+, consists of an innovative EO image
understanding system (EO IUS) design and implementation capable of automatic
spatial context sensitive cloud/cloud shadow detection in multi source multi
spectral (MS) EO imagery, whether or not radiometrically calibrated, acquired
by multiple platforms, either spaceborne or airborne, including unmanned aerial
vehicles (UAVs). It is worth mentioning that the same EO IUS architecture is
suitable for a large variety of EO based value adding products and services,
including: (i) low level image enhancement applications, such as automatic MS
image topographic correction, co registration, mosaicking and compositing, (ii)
high level MS image land cover (LC) and LC change (LCC) classification and
(iii) content based image storage/retrieval in massive multi source EO image
databases (big data mining).
