@gvy_dvpont The downside with that whole class of approaches is that it does make it very tricky to create multiple instances of the same fingerprint (aka feature points at the same location, but observed from a different angle), but AFAIK the original paper+implementation had the same issue.
Plenty of opportunities on the postprocessing side to toy around with, but that's certainly much more of a raster problem with backgrounds, skin stretching, variable pressure, smears, scars, etc.
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