1. A method comprising: receiving, at a computing system, a set of one or more area description files from a set of one or more first mobile devices, each area description file representing a point cloud of spatial features detected by a corresponding first mobile device at an area; generating, at the computing system, a localization area description file for the area from the set of one or more area description files, the localization area description file representing a point cloud of spatial features for the area; and providing the localization area description file from the computing system to a second mobile device, wherein: the set of one or more area description files comprises a plurality of area description files; and generating the localization area description file comprises: identifying the plurality of area description files as being associated with the area; deduplicating the point clouds represented by the plurality of area description files; determining a relative alignment of the point clouds represented by the plurality of area description files; and incorporating the point clouds in the localization area description file.
1. A method comprising: receiving, at a computing system, a set of one or more area description files from a set of one or more first mobile devices, each area description file representing a point cloud of spatial features detected by a corresponding first mobile device at an area; generating, at the computing system, a localization area description file for the area from the set of one or more area description files, the localization area description file representing a point cloud of spatial features for the area; and providing the localization area description file from the computing system to a second mobile device, wherein: the set of one or more area description files comprises a plurality of area description files; and generating the localization area description file comprises: identifying the plurality of area description files as being associated with the area; deduplicating the point clouds represented by the plurality of area description files; determining a relative alignment of the point clouds represented by the plurality of area description files; and incorporating the point clouds in the localization area description file. 5. The method of claim 1 , wherein generating the localization area description file further comprises: eliminating spatial features from the point clouds based on at least one stability criterion.