Open Processing of Airborne imaging Spectrometry

Developed by NASA-JPL and operated by the consortium of Swiss universities - ARES, the AVIRIS-4 is the most advanced airborne imaging spectrometer (AIS) currently operational in Europe. In agreement with NASA- JPL, ARES will make all data produced by AVIRIS-4 publicly available and is building an environment of open tools to make the processing of this data accessible, interoperable and reproducible, in line with FAIR principles. During our previous ORD-Contribute project, OGAIS, we developed an open tool which can be used to label point correspondences in AIS images by hand. This tool enables the airborne remote sensing community to obtain ground truth “tie-points” for evaluating the quality of the scene reconstruction and/or improving the image geo-referencing accuracy. After the first flights of AVIRIS-4 during the spring-summer this year, a clear need emerged for the mission at high resolution (0.3 – 1 m/pixel) to obtain point correspondence labels without human intervention in order to ii) improve the conventional (direct) georeferencing, ii) automate the quality assessment on all current and future missions featuring more than couple flight-lines (>0.5 TB / mission). This project therefore proposes to support ARES ORD practices by providing tools to automate the detection of tie-points as spatial constraints in overlapping AVIRIS-4 images, and integrate them in EPFL’s open, on-line georeferencing service ODYN to maximise findability.