PG-Former: A Vertex-Edge Autoregressive Transformer for Building Polygon Generation With Geometric Consistency (opens in new tab)

As critical geographic entities, buildings serve as fundamental components in applications such as cartographic mapping and urban planning. Extracting their vectorized geometric representations is essential for providing structured and scalable data support. Although segmentation-based approaches typically produce raster masks to approximate building footprints, they often suffer from irregular boundaries and poor shape fidelity, limiting their accuracy and practical applicability. Moreover, ...