Examples of pattern recognition using computational geometry

[MK234]

I have already read several times that Computational Geometry is used for pattern recognition (it seems like Voronoi diagrams are used). Unfortunately I do not find any examples. Can someone give examples to me? Many Thanks

[ea304gt]

I've just skimmed this article, but it seems that are plenty of examples of how does Computational Geometry helps us to understand how do we actually look at things

https://bost.ocks.org/mike/algorithms/