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locationtech / geotrellis

GeoTrellis is a geographic data processing engine for high performance applications.
http://geotrellis.io
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spark implementation of SNIC (super pixel segmentation) #3120

Open moradology opened 5 years ago

moradology commented 5 years ago

SNIC is a fast algorithm for creating superpixels (essentially, pixel groupings that minimize the variance of underlying pixel values). This is very useful for classification and for vectorization. Classification because super pixels avoid the 'salt and pepper' artifacts which result from even very good pixel-based classification techniques. Vectorization because it combines like data to reduce the size of the output vector layer

https://ivrl.epfl.ch/research-2/research-current/research-superpixels/research-snic_superpixels/

moradology commented 5 years ago

This presentation provides motivation for such a feature: https://docs.google.com/presentation/d/1gGG9jwtVP783prPl-YgaGOXzFQgUqGUJ467P3ez8yxI/edit#slide=id.g62a83eb029_0_1889