Vectorizing historical maps with topological consistency: A hybrid approach using transformers and contour-based instance segmentation

Xue Xia, Tao Zhang, Magnus Heitzler, Lorenz Hurni

Abstract: Highlights•This paper tackles the topological challenge when vectorizing historical maps.•The proposed method uses Transformers and contour-based instance segmentation.•A publicly available dataset is curated.•A novel vector-oriented evaluation metric is proposed.•Final results have yielded regularized and topologically consistent polygonal representations.