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Data digitalization

Data digitalization. vector raster attributes. Vectorization. direct - on tablet definition of TIC points definition of reference and coordinate systems on screen manual, semi-automatic, automatic reference and coordinate systems raster deformations. Rasterization.

marny-cain
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Data digitalization

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  1. Data digitalization • vector • raster • attributes Vectorization • direct - on tablet • definition of TIC points • definition of reference and coordinate systems • on screen • manual, semi-automatic, automatic • reference and coordinate systems • raster deformations

  2. Rasterization • Process: raster image -> raster map (classification) • coordinate systems definition • image cleaning • Gauss filter (noise removal) • High pass (edge cleaning) • Low pass (smooting) • Other filters • clasiffication • supervised • unsupervised

  3. Supervised classification • training sites • signatures (statistics about light distribution in the training sites) MakeSig • Hard classifiers • MinDist • MaxLike - Bayes formula • Piped

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