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Article | REF: P960 V1

Spectro-imagery Principle and applications

Author: Xavier BRIOTTET

Publication date: December 10, 2018, Review date: October 23, 2020

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5. Pretreatments

The aim of pre-processing is to correct the acquired images for instrumental defects, to convert the images into luminance units for geo-referenced instrument input, and then to process the images to convert them into optical surface quantities or surface temperature. At each of these stages, a quality criterion must be applied in order to assess the quality of the data and processing. Nevertheless, a preliminary step is necessary to characterize the instrument and deduce its radiometric and geometric calibration. This process, although similar for all remote sensing instruments, depends on the optical configuration

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