Attributes extraction for French map interpretation

The authors deal with a cadastral map interpretation device. The approach to solving this problem is twofold: first, it consists in vectorizing the image by extracting the lowest information level; then, using the low level primitives and introducing the knowledge of the cadastral map, it consists in reconstructing real cadastral entities. The authors present the decomposition of the information into different levels of abstraction (from the low level information to the real cadastral object). They also present the interactions between these different levels, interactions which are managed by the consistency of the objects on each of the different levels. They then present the original tools allowing extraction of the low level primitives