Method and system for cross-referencing and deduplicating objects in multiple map building blocks

摘要

A system and method for providing a digital map database wherein multiple instances of geocoded objects pertaining to points of interest (POI) and/or three-dimensional (3D) objects contained within one or more building blocks are compared to find undesirable duplicate geocoded objects. Cross-referencing information is stored and preference information about which geocoded object or object property/attribute should be used is assessed to determine priority for selection or presentation on the display screen of a navigation device or other suitable computing device. Cross-references can be pre-calculated at compile time or calculated on-the-fly by the navigation application at run time and may be persistently stored in dedicated data structures. When duplicate geocoded objects are found, only the most accurate information or a super set of (attribute) information is used by applications or presented to a user thereby preventing confusion.

主权项

1. A non-transitory computer-readable medium which stores a set of instructions which when executed performs a method for enriching the content in a digital map by integrating data in the form of building blocks from one or more sources into a digital map, the method executed by the set of instructions comprising:
integrating a supplemental building block containing at least one digitized geocoded object pertaining to an object in reality into a digital map stored on a computer, said digital map containing digitized information including at least one building block containing a digitized geocoded object corresponding to the same object in reality; identifying the geocoded objects from respective building blocks that correspond to the same object in reality; assigning a priority value for each identified geocoded object; comparing the priority values to one another; selecting the one geocoded object from among the plurality of identified geocoded objects that has the highest priority value for use by a digital map or navigation application; and storing, in the digital map, cross reference information identifying the identified geocoded objects and preference information identifying the selected one geocoded object.