METHOD AND DEVICE FOR MAP GENERALIZATION Russian patent published in 2023 - IPC G06T3/40 

FIELD: map generalization.

SUBSTANCE: invention relates to a method and device for generalizing a map. The method comprises the steps of: a) obtaining cartographic information in vector form, containing at least one layer containing a set of multipolygons for objects of the same type; b) perform rasterization of the received cartographic information; c) perform filtering of rasterized cartographic information; d) perform vectorization of filtered rasterized cartographic information, and in the process of vectorization the following is carried out: finding reference points on the boundaries of adjacent objects, constructing object boundaries based on the found reference points, constructing at least one common boundary between adjacent objects by combining common vertices with the same coordinates, restoring a set of multipolygons taking into account at least one common boundary of objects; e) forming a generalized map based on the reconstructed set of multipolygons.

EFFECT: improved quality of map generalization.

10 cl, 7 dwg