The processing of CASI-1500i data at INTA PAF
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The Remote Sensing Laboratory at INTA has been operating a CASI-1500 instrument since 2009. A specific processing
chain has been implemented within the INTA airborne data Processing and Archiving Facility. In this chain, raw
data (level 0 product) are transformed to at-sensor radiance (level 1b) and later to geolocated at-sensor radiance
(level 1c). Other processing levels, as atmospherically corrected reflectance (L2b / L2c), can also be produced.
The resulting image products are delivered together with radiometric statistics, metadata and quality descriptors,
the latter according to EUFAR HyQuaPro recommendations. In this paper, details about this processing chain are
given, including some points related to in-flight spectral calibration and noise and SNR estimation in operational
images. The paper also describes the procedure for in-flight geometric calibration (internal orientation
calibration and boresight estimation). Finally, an evaluation of the product accuracy (radiometric, spectral and
geometric) is presented, using imagery from CASI campaigns performed by INTA.
提供机构：
EARSeL eProceedings
创建时间：
2014-06-27
