IRSAMap:Towards Large-Scale, High-Resolution Land Cover Map Vectorization

The traditional pixel based grid classification results have problems such as jagged edges and inconsistent border connections across image frames, making it difficult to directly express topological relationships such as road intersections and building adjacency.

In subsequent applications, additional manual vectorization processing is often required to support GIS analysis, resulting in high process costs and low efficiency. Object level vector modeling expresses land features in vector forms such as "surfaces, lines, and points", which is naturally suitable for GIS and surveying applications. It can be directly used for area and length measurement, network connectivity analysis, and spatiotemporal change updates.