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  • Analysis starts with the implementation of EWA within the PyResample open source Python implementation (with some Cython modules for speed)
  • The PyResample implementation is based upon the implementation within the MODIS-Swath-to-Grid toolbox developed and distributed by NSIDC.  See: https://nsidc.org/data/user-resources/help-center/what-modis-swath-grid-toolbox-ms2gt-and-what-can-it-do
  • MS2GT is based upon an algorithm developed by Green & Heckbert, IEEE, June 1986
    "Creating Raster Omnimax Images from Multiple Perspective Views Using the Elliptical Weighted Average Filter".
    https://ieeexplore.ieee.org/document/4056910
  • None of this provides sufficient much clarity in defining in the image characteristics and performance of the algorithm.

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