Update:
★ Polygonal Building Segmentation by Frame Field Learning [Data and Code]
References:
★ Automatic extraction of road intersection points from USGS historical map series using deep convolutional neural networks - [Data and Code]
★ Combining Deep Learning and Mathematical Morphology for Historical Map Segmentation
★ Generic Semantic Segmentation of Historical Maps - [Data and Code]
Historical map polygon and feature extractor
https://dhistory.hypotheses.org/346 (in German)
https://github.com/MinesParis-MorphoMath (https://smil.cmm.minesparis.psl.eu/doc/p600.html)
https://gitlab.kiv.zcu.cz/balounj/21_icdar_mapseg_competition/-/tree/master/