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An automated de-striping algorithm for Ocean Colour Monitor imagery

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Abstract:

Ocean Colour Monitor, OCM, is a push broom sensor design with 3740 detectors across scan for each of its eight channels. Along track striping caused by poorly characterised detector to detector calibration results in derived ocean colour products that are hardly usable. Because OCM is turned on only for purchased orbits, the coefficients needed to correct each cross scan detector are not constant for all orbits. An algorithm has been developed to remove the effects of striping which is based on the information contained in each image. The algorithm performance depends only on the quantity of contiguous pixels over the water for each detector. Along scan detectors that have sufficient water pixels within the image to derive statistically significant correction coefficients are corrected with a fixed vector of scale factors. This paper outlines the automated de-striping algorithm (ADM), shows the results of ADM, quantifies the improvement to the images achieved and describes the limitations of the method.

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/01431160802468263

Affiliations: Ocean Optics Section, Oceanography Division, Naval Research Laboratory,

Publication date: January 1, 2009

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tandf/tres/2009/00000030/00000006/art00007
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